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STL Sprockets

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STL Sprockets
STL Sprockets

STL Sprockets

ANSI: (35-1/41-1/40-1/40-2/40-3/50-1/50-2/50-3/ 60-1/60-2/60-3/80-1/80-2/80-3/100-1/100-2/ 120-1/140-1/160-1/200-1)

Inch size product (Apply to ANSI market)

STL Sprockets

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  • Description
  • Parameter
  • Related products
Description

STL Sprockets mainly involves a series of industrial sprockets and chain links, which are widely used in various mechanical transmission systems. Our factory provides you with various types of sprockets, including single plate (single), double plate (double), and triple plate (three). The specific product models include DS40-STL, DS50-STL, DS60-STL, DS80-STL, and DS100-STL, which are suitable for the ANSI market. These sprockets are typically made of 316 stainless steel and have extremely high corrosion resistance. The design of the sprocket includes plastic bushings, stainless steel pins, and outer plates, which give them a longer service life than other lightweight sprockets. STL Sprockets are widely used in bicycles, motorcycles, industrial machinery, and many other mechanical devices for transmitting rotational motion and force.

In summary, the sprocket products provided by STL Sprockets not only focus on durability and corrosion resistance in material selection, but also consider convenience and reliability in practical applications in design, making them an ideal choice for industrial transmission systems.

Parameter

product range

Standards Series Type Size Range
ANSI 35-1 For 3/8''Pitch STL-35G15H to STL-35H112
41-1 For 1/2"Pitch STL-41G12 to STL-41P112
40-1 For 3/4"Pitch STL-40G12H to STL-40Q112
40-2 For 1/2"Pitch STL-D40H15H to STL-D40Q112
40-3 For 1/2"Pitch STL-T40P18H to STL-T40Q102
50-1 For 5/8''Pitch STL-50G11H to STL-50Q112
50-2 For 5/8"Pitch STL-D50H14H to STL-D50R112
50-3 For 5/8''Pitch STL-T50P15H to STL-T50R102
60-1 For 3/4"Pitch STL-60G10H to STL-60R112
60-2 For 3/4"Pitch STL-D60P13H to STL-D60R96
60-3 For 3/4"Pitch STL-T60P13H to STL-T60S68
80-1 For 1"Pitch STL-80H10H to STL-805112
80-2 For 1"Pitch STL-D80P13H to STL-D80U95
80-3 For 1"Pitch STL-T80P13H to STL-T80U95
100-1 For 1 1/4"Pitch STL-100P11H to STL-100R84
100-2For1 1/4"Pitch STL-D100P11H to STL-D100580
120-1 For1 1/2"Pitch STL-120Q11H to STL-120580
140-1 For 1 3/4"Pitch STL-140Q11H to STL-140S80
160-1 For 2"Pitch STL-160R11H to STL-160U80
200-1 For 2 1/2"Pitch STL-200R12H to STL-200U60

STL Sprocket

 

35-1 For 3/8’’ Pitch

35-1(01ef17f808).png



Teeth

No. 		Catalog Type Diameters Bushing Dimensions
wt
Less
Bushing
O.D. P.D. T OL L P C H
15
16
17
18
19 		STL35G15H
STL35G16H
STL35G17H
STL35G18H
STL35G19H 		1
1
1
1
1 		1.99
2.10
2.23
2.35
2.47 		1.804
1.922
2.041
2.159
2.278 		G
G
G
G
G 		0.168
0.168
0.168
0.168
0.168 		111/32
111/32
111/32
111/32
11/4		 1
1
1
1
1
1
1
1
1
29/32 		5/32
5/32
5/32
5/32
1/16 		2
2
2
2
2 		0.3
0.3
0.3
0.3
0.3
19
20
21
22
23 		STL35H19H
STL35H20H
STL35H21H
STL35H22H
STL35H23H 		1
1
1
1
1 		2.47
2.59
2.70
2.83
2.95 		2.278
2.397
2.516
2.635
2.754 		H
H
H
H
H 		0.168
0.168
0.168
0.168
0.168 		11/2
11/2
11/2
11/2
11/2		 11/4
11/4
11/4
11/4
11/4		 15/32
15/32
15/32
15/32
15/32		 1/16
1/16
1/16
1/16
1/16 		21/2
21/2
21/2
21/2
21/2		 0.5
0.5
0.6
0.7
0.7
24
25
26
28
30 		STL35H24H
STL35H25H
STL35H26H
STL35H28H
STL35H30H 		1
1
1
1
1 		3.05
3.19
3.31
3.55
3.79 		2.873
2.992
3.111
3.349
3.588 		H
H
H
H
H 		0.168
0.168
0.168
0.168
0.168 		11/2
11/2
11/2
11/2
11/2		 11/4
11/4
11/4
11/4
11/4		 15/32
15/32
15/32
15/32
15/32		 1/16
1/16
1/16
1/16
1/16 		21/2
21/2
21/2
21/2
21/2		 0.8
0.8
0.8
0.9
0.9
32
35
36
40
42 		STL35H32H
STL35H35H
STL35H36H
STL35H40H
STL35H42H 		1
1
1
1
1 		4.03
4.39
4.51
4.99
5.23 		3.826
4.183
4.303
4.780
5.018 		H
H
H
H
H 		0.168
0.168
0.168
0.168
0.168 		11/2
11/2
11/2
11/2
11/2		 11/4
11/4
11/4
11/4
11/4		 15/32
15/32
15/32
15/32
15/32		 1/16
1/16
1/16
1/16
1/16 		21/2
21/2
21/2
21/2
21/2		 0.9
1.0
1.0
1.2
1.2
45
48
54
60
70 		STL35H45H
STL35H48H
STL35H54H
STL35H60H
STL35H70 		1
1
1
1
1 		5.59
5.95
6.66
7.38
8.58 		5.379
5.734
6.449
7.165
8.358 		H
H
H
H
H 		0.168
0.168
0.168
0.168
0.168 		11/2
11/2
11/2
11/2
11/2		 11/4
11/4
11/4
11/4
11/4		 15/32
15/32
15/32
15/32
15/32		 1/16
1/16
1/16
1/16
1/16 		21/2
21/2
21/2
21/2
21/2		 1.4
1.5
1.8
2.3
2.8
72
80
84
96
112 		STL35H72
STL35H80
STL35H84
STL35H96
STL35H112 		1
1
1
1
1 		8.81
9.77
10.25
11.68
13.59 		8.597
9.552
10.029
11.461
13.371 		H
H
H
H
H 		0.168
0.168
0.168
0.168
0.168 		11/2
11/2
11/2
11/2
11/2		 11/4
11/4
11/4
11/4
11/4		 15/32
15/32
15/32
15/32
15/32		 1/16
1/16
1/16
1/16
1/16 		21/2
21/2
21/2
21/2
21/2		 3.0
3.8
4.0
5.3
6.8

41-1 For 1/2’’ Pitch

41-1(5d946554fb).png



Teeth

No. 		Catalog Type Diameters Bushing Dimensions
wt
Less
Bushing
O.D. P.D. T OL L P C H
12
14
15
16
17 		STL41G12
STL41G14
STL41H15
STL41H16
STL41H17 		1
1
1
1
1 		2.17
2.49
2.65
2.80
2.96 		1.932
2.247
2.405
2.653
2.721 		G
G
H
H
H 		0.227
0.227
0.227
0.227
0.227 		17/16
17/16
11/2
11/2
11/2		 1
1
11/4
11/4
11/4		 11/32
11/32
13/32
13/32
13/32		 0.258
0.258
0.071
0.071
0.071 		2
2
21/2
21/2
21/2		 0.3
0.4
0.5
0.5
0.6
18
19
20
21
22 		STL41H18
STL41H19
STL41H20
STL41H21
STL41H22 		1
1
1
1
1 		3.14
3.30
3.45
3.62
3.75 		2.879
3.038
3.196
3.355
3.513 		H
H
H
H
H 		0.227
0.227
0.227
0.227
0.227 		11/2
11/2
11/2
11/2
11/2		 11/4
11/4
11/4
11/4
11/4		 13/32
13/32
13/32
13/32
13/32		 0.071
0.071
0.071
0.071
0.071 		21/2
21/2
21/2
21/2
21/2		 0.7
0.8
0.8
0.9
0.9
23
24
25
26
27 		STL41H23
STL41H24
STL41H25
STL41H26
STL41H27 		1
1
1
1
1 		3.94
4.10
4.26
4.42
4.58 		3.672
3.831
3.989
4.158
4.307 		H
H
H
H
H 		0.227
0.227
0.227
0.227
0.227 		11/2
11/2
11/2
11/2
11/2		 11/4
11/4
11/4
11/4
11/4		 13/32
13/32
13/32
13/32
13/32		 0.071
0.071
0.071
0.071
0.071 		21/2
21/2
21/2
21/2
21/2		 1.0
1.1
1.1
1.1
1.1
28
30
32
35
36 		STL41H28
STL41H30
STL41H32
STL41H35
STL41P36 		1
1
1
1
2 		4.70
5.06
5.38
5.86
6.02 		4.466
4.783
5.101
5.578
5.737 		H
H
H
H
P1 		0.227
0.227
0.227
0.227
0.227 		11/2
11/2
11/2
11/2
23/16		 11/4
11/4
11/4
11/4
115/16		 13/32
13/32
13/32
13/32
123/32		 0.071
0.071
0.071
0.071
- 		21/2
21/2
21/2
21/2
3		 1.2
1.3
1.5
1.8
2.5
40
42
45
48
54 		STL41P40
STL41P42
STL41P45
STL41P48
STL41P54 		2
2
2
2
2 		6.55
6.97
7.45
7.93
8.89 		6.373
6.691
7.168
7.645
8.599 		P1
P1
P1
P1
P1 		0.227
0.227
0.227
0.227
0.227 		23/16
23/16
23/16
23/16
23/16		 115/16
115/16
115/16
115/16
115/16		 123/32
123/32
123/32
123/32
123/32		 -
-
-
-
- 		3
3
3
3
3 		3.0
3.1
3.5
4.0
4.6
60
70
72
80
84 		STL41P60
STL41P70
STL41P72
STL41P80
STL41P84 		2
2
2
2
2 		9.84
11.43
11.75
13.03
13.66 		9.554
11.145
11.463
12.736
13.372 		P1
P1
P1
P1
P1 		0.227
0.227
0.227
0.227
0.227 		23/16
23/16
23/16
23/16
23/16		 115/16
115/16
115/16
115/16
115/16		 123/32
123/32
123/32
123/32
123/32		 -
-
-
-
- 		3
3
3
3
3 		5.5
7.0
7.9
9.3
9.7
96
112 		STL41P96
STL41P112 		2
2 		15.57
18.12 		15.281
17.828 		P1
P1 		0.227
0.227 		23/16
23/16		 115/16
115/16		 123/32
123/32		 -
- 		3
3 		13.0
18.0

 

40-1 For 3/4’’ Pitch

40-1(6d715627a6).png

Teeth

No 		Catalog Type Diameters Bushing Dimensions wt
Less
Bushing
O.D PD T OL L P C H
12
13
14
15
16 		STL40G12H
STL40G13H
STL40G14H
STL40H15H
STL40G16H 		1
1
1
1
1 		2.17
2.30
2.49
2.65
2.80 		1.932
2.089
2.247
2.405
2.563 		G
G
G
H
G 		0.284
0.284
0.284
0.284
0.284 		11/2
11/2
11/2
119/32
11/4		 1
1
1
11/4
1		 11/32
11/32
11/32
11/8
25/32		 5/16
5/16
5/16
5/32
1/16 		2
2
2
21/2
2		 0.3
0.4
0.5
0.5
0.4
16
17
18
18
19 		STL40H16H
STL40H17H
STL40H18H
STL40P18H
STL40P19H 		1
1
1
2
2 		2.80
2.96
3.14
3.14
3.30 		2.563
2.721
2.879
2.879
3.038 		H
H
H
P1
P1 		0.284
0.284
0.284
0.284
0.284 		119/32
11/2
11/2
23/16
23/16		 11/4
11/4
11/4
115/16
115/16		 11/8
11/32
11/32
121/32
121/32		 5/32
1/16
1/16
-
- 		21/2
21/2
21/2
3
3		 0.6
0.6
0.7
1.2
1.3
19
20
20
21
21 		STL40H19H
STL40H20H
STL40P20H
STL40H21H
STL40P21H 		1
1
2
1
2 		3.30
3.45
3.45
3.62
3.62 		3.038
3.196
3.196
3.355
3.355 		H
H
P1
H
P1 		0.284
0.284
0.284
0.284
0.284 		11/2
11/2
23/16
11/2
23/16		 11/4
11/4
115/16
11/4
115/16		 11/32
11/32
121/32
11/32
121/32		 1/16
1/16
-
1/16
- 		21/2
21/2
3
21/2
3		 0.8
0.8
1.3
0.9
1.5
22
22
23
23
24 		STL40H22H
STL40P22H
STL40H23H
STL40P23H
STL40H24H 		1
2
1
2
1 		3.75
3.75
3.94
3.94
4.10 		3.513
3.513
3.672
3.672
3.831 		H
P1
H
P1
H 		0.284
0.284
0.284
0.284
0.284 		11/2
23/16
11/2
23/16
11/2		 11/4
115/16
11/4
115/16
11/4		 11/32
121/32
11/32
121/32
11/32		 1/16
-
1/16
-
1/16 		21/2
3
21/2
3
21/2		 0.9
0.6
1.0
1.7
1.2
24
25
25
26
26 		STL40P24H
STL40H25H
STL40P25H
STL40H26H
STL40P26H 		2
1
2
1
2 		4.10
4.26
4.26
4.42
4.42 		3.831
3.989
3.989
4.148
4.148 		P1
H
P1
H
P1 		0.284
0.284
0.284
0.284
0.284 		23/16
11/2
23/16
11/2
23/16		 115/16
11/4
115/16
11/4
115/16		 121/32
11/32
121/32
11/32
121/32		 -
1/16
-
1/16
- 		3
21/2
3
21/2
3		 1.8
1.3
2.0
1.4
2.0
27
27
28
28
29 		STL40H27H
STL40P27H
STL40H28H
STL40P28H
STL40P29H 		1
2
1
2
2 		4.58
4.58
4.74
4.74
4.90 		4.307
4.307
4.466
4.466
4.625 		H
P1
H
P1
P1 		0.284
0.284
0.284
0.284
0.284 		11/2
23/16
11/2
23/16
23/16		 11/4
115/16
11/4
115/16
115/16		 11/32
121/32
11/32
121/32
121/32		 1/16
-
1/16
-
- 		21/2
3
21/2
3
3 		1.4
2.1
1.5
2.2
2.3
30
30
31
32
33 		STL40H30H
STL40P30H
STL40P31H
STL40P32H
STL40P33H 		1
2
2
2
2 		5.06
5.06
5.22
5.38
5.54 		4.783
4.783
4.942
5.101
5.26 		H
P1
P1
P1
P1 		0.284
0.284
0.284
0.284
0.284 		11/2
23/16
23/16
23/16
23/16		 11/4
115/16
115/16
115/16
115/16		 11/32
121/32
121/32
121/32
121/32		 1/16
-
-
-
- 		21/2
3
3
3
3 		1.6
2.4
2.5
2.6
2.6
34
35
36
37
38 		STL40P34H
STL40P35H
STL40P36H
STL40P37H
STL40P38H 		2
2
2
2
2 		5.70
5.86
6.02
6.18
6.33 		5.419
5.578
5.737
5.896
6.055 		P1
P1
P1
P1
P1 		0.284
0.284
0.284
0.284
0.284 		23/16
23/16
23/16
23/16
23/16		 115/16
115/16
115/16
115/16
115/16		 121/32
121/32
121/32
121/32
121/32		 -
-
-
-
- 		3
3
3
3
3 		2.8
2.9
3.1
3.3
3.3
40
41
42
44
45 		STL40P40H
STL40P41H
STL40P42H
STL40P44H
STL40P45H 		2
2
2
2
2 		6.65
6.81
6.97
7.29
7.45 		6.373
6.532
6.691
7.009
7.168 		P1
P1
P1
P1
P1 		0.284
0.284
0.284
0.284
0.284 		23/16
23/16
23/16
23/16
23/16		 115/16
115/16
115/16
115/16
115/16		 121/32
121/32
121/32
121/32
121/32		 -
-
-
-
- 		3
3
3
3
3 		3.5
3.6
3.9
4.0
4.2
47
48
50
54
56 		  STL40P47H
  STL40P48H
STL40P50
 STL40P54
 STL40P56 		2
2
2
2
2 		7.77
7.93
8.25
8.89
9.20 		7.486
7.645
7.963
8.599
8.917 		P1
P1
P1
P1
P1 		0.284
0.284
0.284
0.284
0.284 		23/16
23/16
23/16
23/16
23/16		 115/16
115/16
115/16
115/16
115/16		 121/32
121/32
121/32
121/32
121/32		 -
-
-
-
- 		3
3
3
3
3 		4.6
4.8
5.0
5.5
5.9
60
60
70
70
72 		 STL40P60
 STL40Q60
 STL40P70
 STL40Q70
 STL40Q72 		2
2
2
2
2 		9.84
9.84
11.43
11.43
11.75 		9.554
9.554
11.145
11.145
11.463 		P1
Q1
P1
Q1
Q1 		0.284
0.284
0.284
0.284
0.284 		23/16
225/32
23/16
225/32
225/32		 115/16
21/2
115/16
21/2
21/2		 121/32
27/32
121/32
27/32
27/32		 -
-
-
-
- 		3
41/8
3
41/8
41/8		  6.6
 8.8
 8.6
 11.0
 11.2
80
84
96
12 		STL40Q80
 STL40Q84
 STL40Q96
  STL40Q112 		2
2
2
2 		13.03
13.66
15.57
18.12 		12.736
13.372
15.281
17.828 		Q1
Q1
Q1
Q1 		0.284
0.284
0.284
0.284 		225/32
225/32
225/32
225/32		 21/2
21/2
21/2
21/2		 27/32
27/32
27/32
27/32		 -
-
-
- 		41/8
41/8
41/8
41/8		  13.1
 14.1
 17.3
 22.8

 

40-2 For 1/2’’ Pitch

40-2(fb1fa4f35a).png


Teeth

No. 		Catalog Type Diameters Bushing Dimensions
wt
Less
Bushing
O.D. P.D. T OL L P C H
15
16
17
18
19  		STL-D40H15H
STL-D40H16H
STL-D40H17H
STL-D40P18H
STL-D40P19H 		4
4
4
3
5  		2.65
2.80
2.96
3.14
3.30  		2.405
2.563
2.721
2.879
3.039  		H
H
H
P1
P1 		0.275
0.275
0.275
0.275
0.275  		25/32
25/32
25/32
33/16
215/32		 11/4
11/4
11/4
115/16
115/16		 11/8
11/8
11/8
13/8
13/8		 23/32
23/32
23/32
1
9/32		 21/2
21/2
21/2
3
3 		 0.9
1.0
1.1
1.8
1.4 
20
21
22
23
24  		STL-D40P20H
STL-D40P21H
STL-D40P22H
STL-D40P23H
STL-D40P24H 		5
5
5
5
5  		3.45
3.62
3.75
3.94
4.10  		3.196
3.355
3.513
3.672
3.831  		P1
P1
P1
P1
P1 		  0.275
 0.275
 0.275
 0.275
 0.275 		213/32
213/32
213/32
23/16
23/16		 115/16
115/16
115/16
115/16
115/16		 13/8
13/8
13/8
13/32
13/32		 1/4
1/4
1/4
-
- 		3
3
3
3
3  		1.6
1.8
2.0
2.0
2.2 
25
26
28
30
32 		STL-D40P25H
STL-D40P26H
STL-D40P28H
STL-D40Q30H
STL-D40Q32H 		5
5
5
5
5  		4.26
4.42
4.70
5.06
5.38 		3.989
4.148
4.466
4.783
5.101 		P1
P1
P1
Q1
Q1 		  0.275
  0.275
  0.275
  0.275
  0.275 		23/16
23/16
23/16
225/32
225/32		 115/16
115/16
115/16
21/2
21/2		 13/32
13/32
13/32
121/32
121/32		 -
-
-
-
- 		3
3
3
41/8
41/8 		2.5
2.7
3.1
4.2
5.3
35
36
40
42
45 		STL-D40Q35H
STL-D40Q36H
STL-D40Q40H
STL-D40Q42H
STL-D40Q45H 		5
5
5
5
5  		5.86
6.02
6.65
6.97
7.45 		5.578
5.737
6.373
6.691
7.168 		Q1
Q1
Q1
Q1
Q1 		  0.275
  0.275
  0.275
  0.275
  0.275 		225/32
225/32
225/32
225/32
225/32		 21/2
21/2
21/2
21/2
21/2		 121/32
121/32
121/32
121/32
121/32		 -
-
-
-
- 		41/8
41/8
41/8
41/8
41/8		 6.1
6.5
7.9
8.9
10.1
48
52
54
60
68 		STL-D40Q48H
STL-D40Q52
STL-D40Q54
STL-D40Q60
STL-D40Q68 		5
5
5
5
5  		7.93
8.57
8.89
9.84
11.12 		7.645
8.281
8.599
9.554
10.826 		Q1
Q1
Q1
Q1
Q1 		 0.275
 0.275
 0.275
 0.275
 0.275 		225/32
225/32
225/32
225/32
225/32		 21/2
21/2
21/2
21/2
21/2		 121/32
121/32
121/32
121/32
121/32		 -
-
-
-
- 		41/8
41/8
41/8
41/8
41/8		 11.8
12.6
14.3
17.4
21.5
72
76
84
95
96 		STL-D40Q72
STL-D40Q76
STL-D40Q84
STL-D40Q95
STL-D40Q96 		5
5
5
5
5  		11.75
12.39
13.66
15.41
15.57 		11.463
12.099
13.372
15.122
15.281 		Q1
Q1
Q1
Q1
Q1 		 0.275
 0.275
 0.275
 0.275
 0.275 		225/32
225/32
225/32
225/32
225/32		 21/2
21/2
21/2
21/2
21/2		 121/32
121/32
121/32
121/32
121/32		 -
-
-
-
- 		41/8
41/8
41/8
41/8
41/8		 25.0
26.9
34.1
42.0
44.1
102
112 		  STL-D40Q102
STL-D40Q112 		5
5 		16.53
18.12 		16.236
17.828 		Q1
Q1 		 0.275
 0.275 		225/32
225/32		 21/2
21/2		 121/32
121/32		 -
- 		41/8
41/8		 48.5
61.0

 

40-3 For 1/2’’ Pitch

40-3.png

Teeth

No. 		 Catalog Type Diameters Bushing Dimensions Wt
   Less
Bushing
O.D. P.D. T OL L P C H
18
19
20
23
24  		STL-T40P18H
STL-T40P19H
STL-T40P20H
STL-T40P23H
STL-T40P24H 		8
6
6
7
7  		3.14
3.30
3.46
3.94
4.10  		2.879
3.038
3.196
3.672
3.831  		P1
P1
P1
P1
P1 		0.275
0.275
0.275
0.275
0.275  		33/4
31/32
231/32
29/32
29/32		 115/16
115/16
115/16
115/16
115/16		 13/8
13/8
15/16
5/8
5/8		 19/16
27/32
25/32
3/32
3/32		 3
3
3
3
3  		1.9
1.8
2.0
2.3
2.6 
25
27
30
35
36  		STL-T40P25H
STL-T40P27H
STL-T40Q30H
STL-T40Q35H
STL-T40Q36H 		7
7
6
6
6 		4.26
4.58
5.06
5.86
6.02  		3.989
4.307
4.783
5.578
5.737  		P1
P1
Q1
Q1
Q1 		0.275
0.275
0.275
0.275
0.275  		29/32
29/32
225/32
225/32
225/32		 115/16
115/16
21/2
21/2
21/2		 5/8
5/8
13/32
13/32
13/32		 3/32
3/32
-
-
- 		3
3
41/8
41/8
41/8		 3.0
3.3
4.5
6.9
7.6 
42
48
52
54
60  		STL-T40Q42H
STL-T40Q48H
STL-T40Q52
STL-T40Q54
STL-T40Q60 		6
6
6
6
6  		6.97
7.93
8.57
8.89
9.84  		6.691
7.645
8.281
8.599
9.554  		Q1
Q1
Q1
Q1
Q1 		0.275
0.275
0.275
0.275
0.275  		225/32
225/32
225/32
225/32
225/32		 21/2
21/2
21/2
21/2
21/2		 13/32
13/32
13/32
13/32
13/32		 -
-
-
-
- 		41/8
41/8
41/8
41/8
41/8		 11.1
15.2
18.7
19.9
25.3 
68
72
76
84
95
102  		STL-T40Q68
STL-T40Q72
STL-T40Q76
STL-T40Q84
STL-T40Q95
STL-T40Q102 		6
6
6
6
6
6  		11.12
11.75
12.39
13.66
15.41
16.53  		10.826
11.463
12.099
13.372
15.122
16.236  		Q1
Q1
Q1
Q1
Q1
Q1 		0.275
0.275
0.275
0.275
0.275
0.275  		225/32
225/32
225/32
225/32
225/32
225/32		 21/2
21/2
21/2
21/2
21/2
21/2		 13/32
13/32
13/32
13/32
13/32
13/32		 -
-
-
-
-
- 		41/8
41/8
41/8
41/8
41/8
41/8		 33.5
37.9
42.5
52.4
67.9
78.5 

 

50-1 For 5/8’’ Pitch

50-1(831e975a8e).png

Teeth

NO. 		Catalog Type Diameters Bushing Dimensions wt
Less
Bushing
O.D.  P.D. T OL L P C H
11
12
13
14
15 		STL50G11H
STL50G12H
STL50H13H
STL50H14H
STL50H15H 		1
1
1
1
1 		2.50
2.70
2.91
3.11
3.32 		2.219
2.415
2.612
2.809
3.006 		G
G
H
H
H 		0.343
0.343
0.343
0.343
0.343 		119/32
119/32
121/32
119/32
11/2		 1
1
11/4
11/4
11/4		 11/16
11/16
11/8
11/16
31/32		 13/32
13/32
7/32
5/32
1/16 		2
2
21/2
21/2
21/2		 0.5
0.5
0.6
0.6
0.8
15
16
16
17
17 		STL50P15H
STL50H16H
STL50P16H
STL50H17H
STL50P17H 		2
1
2
1
2 		3.32
3.52
3.52
3.72
3.72 		3.006
3.204
3.204
3.401
3.401 		P1
H
P1
H
P1 		0.343
0.343
0.343
0.343
0.343 		23/16
11/2
23/16
11/2
23/16		 115/16
11/4
115/16
11/4
115/16		 119/32
31/32
119/32
31/32
119/32		 -
1/16
-
1/16
- 		3
21/2
3
21/2
3		 1.1
0.9
1.3
1.0
1.4
18
18
19
19
20 		STL50H18H
STL50P18H
STL50H19H
STL50P19H
STL50H20H 		1
2
1
2
1 		3.92
3.92
4.12
4.12
4.32 		3.599
3.599
3.797
3.797
3.995 		H
P1
H
P1
H 		0.343
0.343
0.343
0.343
0.343 		11/2
23/16
11/2
23/16
11/2		 11/4
115/16
11/4
115/16
11/4		 31/32
119/32
31/32
119/32
31/32		 1/16
-
1/16
-
1/16 		21/2
3
21/2
3
21/2		 1.0
1.6
1.1
1.8
1.5
20
21
22
23
23 		STL50P20H
STL50P21H
STL50P22H
STL50P23H
STL50Q23H 		2
2
2
2
2 		4.32
4.52
4.70
4.92
4.92 		3.995
4.194
4.392
4.590
4.590 		P1
P1
P1
P1
Q1 		0.343
0.343
0.343
0.343
0.343 		23/16
23/16
23/16
23/16
225/32		 115/16
115/16
115/16
115/16
21/2		 119/32
119/32
119/32
119/32
25/32		 -
-
-
-
- 		3
3
3
3
41/8		 2.0
2.1
2.3
2.4
3.4
24
24
25
25
26 		STL50P24H
STL50Q24H
STL50P25H
STL50Q25H
STL50P26H 		2
2
2
2
2 		5.12
5.12
5.32
5.32
5.52 		4.788
4.788
4.987
4.987
5.185 		P1
Q
P1
Q1
P1 		0.343
0.343
0.343
0.343
0.343 		23/16
225/32
23/16
225/32
23/16		 115/16
21/2
115/16
21/2
115/16		 119/32
25/32
119/32
25/32
119/32		 -
-
-
-
- 		3
41/8
3
41/8
3		 2.5
3.4
2.6
3.7
2.9
26
27
27
28
28 		STL50Q26H
STL50P27H
STL50Q27H
STL50P28H
STL50Q28H 		2
2
2
2
2 		5.52
5.72
5.72
5.92
5.92 		5.185
5.384
5.384
5.582
5.582 		Q1
P1
Q1
P1
Q1 		0.343
0.343
0.343
0.343
0.343 		225/32
23/16
225/32
23/16
225/32		 21/2
115/16
21/2
115/16
21/2		 25/32
119/32
25/32
119/32
25/32		 -
-
-
-
- 		41/8
3
41/8
3
41/8		 3.8
3.0
3.9
3.2
4.0
29
30
30
31
32 		STL50P29H
STL50P30H
STL50Q30H
STL50P31H
STL50P32H 		2
2
2
2
2 		6.12
6.32
6.32
6.52
6.72 		5.781
5.979
5.979
6.178
6.376 		P1
P1
Q1
P1
P1 		0.343
0.343
0.343
0.343
0.343 		23/16
23/16
225/32
23/16
23/16		 115/16
115/16
21/2
115/16
115/16		 119/32
119/32
25/32
119/32
119/32		 -
-
-
-
- 		3
3
41/8
3
3		 3.3
3.5
5.6
3.6
3.9
32
33
34
35
35 		STL50Q32H
STL50P33H
STL50P34H
STL50P35H
STL50Q35H 		2
2
2
2
2 		6.72
6.92
7.12
7.32
7.32 		6.376
6.575
6.774
6.972
6.972 		Q1
P1
P1
P1
Q1 		0.343
0.343
0.343
0.343
0.343 		225/32
23/16
23/16
23/16
225/32		 21/2
115/16
115/16
115/16
21/2		 25/32
119/32
119/32
119/32
25/32		 -
-
-
-
- 		41/8
3
3
3
41/8		 6.1
4.1
4.3
4.3
6.8
36
36
37
38
39 		STL50P36H
STL50Q36H
STL50Q37H
STL50Q38H
STL50Q39H 		2
2
2
2
2 		7.52
7.52
7.72
7.92
8.12 		7.171
7.171
7.370
7.569
7.767 		P1
Q1
Q1
Q1
Q1 		0.343
0.343
0.343
0.343
0.343 		23/16
225/32
225/32
225/32
225/32		 115/16
21/2
21/2
21/2
21/2		 119/32
25/32
25/32
25/32
25/32		 -
-
-
-
- 		3
41/8
41/8
41/8
41/8		 4.8
6.8
7.0
7.4
7.6
40
41
42
44
45 		STL50Q40H
STL50Q41
STL50Q42
STL50Q44
STL50Q45 		2
2
2
2
2 		8.32
8.52
8.72
9.11
9.31 		7.966
8.165
8.363
8.761
8.960 		Q1
Q1
Q1
Q1
Q1 		0.343
0.343
0.343
0.343
0.343 		225/32
225/32
225/32
225/32
225/32		 21/2
21/2
21/2
21/2
21/2		 25/32
25/32
25/32
25/32
25/32		 -
-
-
-
- 		41/8
41/8
41/8
41/8
41/8		 8.0
8.2
8.3
8.6
9.0
47
48
50
54
56 		STL50Q47
STL50Q48
STL50Q50
STL50Q54
STL50Q56 		2
2
2
2
2 		9.71
9.91
10.31
11.11
11.50 		9.357
9.556
9.954
10.749
11.147 		Q1
Q1
Q1
Q1
Q1 		0.343
0.343
0.343
0.343
0.343 		225/32
225/32
225/32
225/32
225/32		 21/2
21/2
21/2
21/2
21/2		 25/32
25/32
25/32
25/32
25/32		 -
-
-
-
- 		41/8
41/8
41/8
41/8
41/8		 9.3
9.6
9.8
11.3
12.3
60
70
72
80
84 		STL50Q60
STL50Q70
STL50Q72
STL50Q80
STL50084 		2
2
2
2
2 		12.30
14.29
14.69
16.28
17.08 		11.942
13.931
14,329
15.920
16.715 		Q1
Q1
Q1
Q1
Q1 		0.343
0.343
0.343
0.343
0.343 		225/32
225/32
225/32
225/32
225/32		 21/2
21/2
21/2
21/2
21/2		 25/32
25/32
25/32
25/32
25/32		 -
-
-
-
- 		41/8
41/8
41/8
41/8
41/8		 13.3
16.9
18.1
21.1
24.3
96
112 		STL50Q96
STL50Q112 		2
2 		19.47
22.65 		19.102
22.285 		Q1
Q1 		0.343
0.343 		225/32
225/32		 21/2
21/2		 25/32
25/32		 -
- 		41/8
41/8		 29.8
39.3

50-2 For 5/8’’ Pitch   

50-2(f100072ac2).png

Teeth

No. 		Catalog Type   Diameters Bushing Dimensions wt
Less
Bushing
O.D. P.D. T OL L P C H
14
15
16
17
18 		STL-D50H14H
STL-D50P15H
STL-D50P16H
STL-D50P17H
STL-D50P18H 		4
3
5
5
5 		3.11
3.32
3.52
3.72
3.92 		2.809
3.006
3.204
3.401
3.599 		H
P1
P1
P1
P1 		0.332
0.332
0.332
0.332
0.332 		25/16
37/16
211/16
211/16
211/16		 11/4
115/16
115/16
115/16
115/16		 13/32
113/32
113/32
113/32
113/32		 7/8
11/4
1/2
1/2
1/2		 21/2
3
3
3
3		 1.2
2.0
1.6
2.1
2.5
19
20
21
22
23 		STL-D50P19H
STL-D50P20H
STL-D50P21H
STL-D50P22H
STL-D50P23H 		5
5
5
5
5 		4.12
4.32
4.52
4.70
4.92 		3.797
3.995
4.194
4.392
4.590 		P1
P1
P1
P1
P1 		0.332
0.332
0.332
0.332
0.332 		23/16
23/16
23/16
23/16
23/16		 115/16
115/16
115/16
115/16
115/16		 29/32
29/32
29/32
29/32
29/32		 -
-
-
-
- 		3
3
3
3
3 		2.0
2.5
2.8
3.2
3.6
24
25
26
27
28 		STL-D50Q24H
STL-D50Q25H
STL-D50Q26H
STL-D50Q27H
STL-D50Q28H 		5
5
5
5
5 		5.12
5.32
5.52
5.72
5.92 		4.788
4.987
5.185
5.384
5.582 		Q1
Q1
Q1
Q1
Q1 		0.332
0.332
0.332
0.332
0.332 		225/32
225/32
225/32
225/32
225/32		 21/2
21/2
21/2
21/2
21/2		 115/32
115/32
115/32
115/32
115/32		 -
-
-
-
- 		41/8
41/8
41/8
41/8
41/8		 4.0
4.5
5.3
5.9
6.3
30
32
35
36
40 		STL-D50Q30H
STL-D50Q32H
STL-D50Q35H
STL-D50Q36H
STL-D50Q40H 		5
5
5
5
5 		6.32
6.72
7.32
7.52
8.32 		5.979
6.376
6.972
7.171
7.966 		Q1
Q1
Q1
Q1
Q1 		0.332
0.332
0.332
0.332
0.332 		225/32
225/32
225/32
225/32
225/32		 21/2
21/2
21/2
21/2
21/2		 115/32
115/32
115/32
115/32
115/32		 -
-
-
-
- 		41/8
41/8
41/8
41/8
41/8		 7.5
8.5
10.4
11.0
13.6
42
45
48
52
54 		STL-D50Q42
STL-D50Q45
STL-D50Q48
STL-D50Q52
STL-D50Q54 		5
5
5
5
5 		8.72
9.31
9.91
10.71
11.11 		8.363
8.960
9.556
10.351
10.749 		Q1
Q1
Q1
Q1
Q1 		0.332
0.332
0.332
0.332
0.332 		225/32
225/32
225/32
225/32
225/32		 21/2
21/2
21/2
21/2
21/2		 115/32
115/32
115/32
115/32
115/32		 -
-
-
-
- 		41/8
41/8
41/8
41/8
41/8		 15.0
17.5
20.4
23.3
24.2
60
72
76
84
95 		STL-D50Q60
STL-D50Q72
STL-D50Q76
STL-D50Q84
STL-D50R95 		5
5
5
5
5 		12.30
14.69
15.49
17.08
19.27 		11.942
14.329
15.124
16.715
18.903 		Q1
Q1
Q1
Q1
R1 		0.332
0.332
0.332
0.332
0.332 		225/32
225/32
225/32
225/32
35/32		 21/2
21/2
21/2
21/2
27/8		 115/32
115/32
115/32
115/32
23/32		 -
-
-
-
- 		41/8
41/8
41/8
41/8
53/8		 25.5
43.1
46.0
57.6
72.3
96
102
112 		STL-D50R96
STL-D50R102
STL-D50R112 		5
5
5 		19.47
20.66
22.65 		19.102
20.295
22.285 		R1
R1
R1 		0.332
0.332
0.332 		35/32
35/32
35/32		 27/8
27/8
27/8		 23/32
23/32
23/32		 -
-
- 		53/8
53/8
53/8		 80.7
84.5
93.2

50-3 For 5/8’’ Pitch 

50-3.png  

Teeth

NO. 		Catalog Type Diameters Bushing Dimensions Wt
   Less
Bushing
O.D. P.D. T OL L P C H
15
16
17
18
19  		STL-T50P15H
STL-T50P16H
STL-T50P17H
STL-T50P18H
STL-T50P19H 		8
6
6
6
7B 		3.32
3.52
3.72
3.92
4.12  		3.006
3.204
3.401
3.599
3.797  		P2
P2
P2
P2
P1 		0.332
0.332
0.332
0.332
0.332 		41/8
33/8
33/8
33/8
25/8		 215/16
215/16
215/16
215/16
115/16		 13/8
13/8
13/8
13/8
5/8 		15/16
3/16
3/16
3/16
7/16 		3
3
3
3
3  		2.5
 2.4
2.8
3.4
2.9 
20
21
23
24
25  		STL-T50P20H
STL-T50P21H
STL-T50P23H
STL-T50Q24H
STL-T50Q25H 		7B
7B
7B
7
7  		4.32
4.52
4.92
5.12
5.32  		3.995
4.194
4.590
4.788
4.987  		P1
P1
P1
Q1
Q1 		0.332
0.332
0.332
0.332
0.332  		25/8
25/8
25/8
225/32
225/32		 115/16
115/16
115/16
21/2
21/2		 5/8
5/8
5/8
3/4
3/4 		7/16
7/16
7/16
-
- 		3
3
3
41/8
41/8		 3.1
3.5
4.5
4.7
5.0 
26
28
30
32
35  		STL-T50Q26H
STL-T50Q28H
STL-T50Q30H
STL-T50Q32H
STL-T50Q35H 		7
7
7
7
7  		5.52
5.92
6.32
6.72
7.32  		5.185
5.582
5.979
6.376
6.972  		Q1
Q1
Q1
Q1
Q1 		0.332
0.332
0.332
0.332
0.332  		225/32
225/32
225/32
225/32
225/32		 21/2
21/2
21/2
21/2
21/2		 3/4
3/4
3/4
3/4
3/4 		-
-
-
-
- 		41/8
41/8
41/8
41/8
41/8		 5.9
7.3
8.8
10.9
13.7 
36
40
42
48
52 		STL-T50Q36H
STL-T50Q40H
STL-T50Q42
STL-T50Q48
STL-T50Q52 		7
7
7
7
7  		7.52
8.32
8.72
9.91
10.71  		7.171
7.966
8.363
9.556
10.351  		Q1
Q1
Q1
Q1
Q1 		0.332
0.332
0.332
0.332
0.332 		225/32
225/32
225/32
225/32
225/32		 21/2
21/2
21/2
21/2
21/2		 3/4
3/4
3/4
3/4
3/4 		-
-
-
-
- 		41/8
41/8
41/8
41/8
41/8		 14.6
19.1
21.5
29.6
36.4 
60
68
72
76
84  		STL-T50R60
STL-T50R68
STL-T50R72
STL-T50R76
STL-T50R84 		6
6
6
6
6  		12.30
13.89
14.69
15.49
17.08  		11.942
13.533
14.329
15.124
16.715  		 R1
 R1
 R1
 R1
 R1 		0.332
0.332
0.332
0.332
0.332  		25/32
25/32
25/32
25/32
25/32		 27/8
27/8
27/8
27/8
27/8		 11/8
11/8
11/8
11/8
11/8		 -
-
-
-
- 		53/8
53/8
53/8
53/8
53/8		 48.0
63.5
72.0
81.0
100 
95
102  		STL-T50R95
STL-T50R102 		6
6  		19.27
20.66  		18.903
20.295  		R1
R1 		0.332
0.332  		25/32
25/32		 27/8
27/8		 11/8
11/8		 -
- 		53/8
53/8		 130
151 

60-1 For 3/4’’ Pitch

60-1(9772f30641).png

Teeth

No. 		Catalog Type Diameters Bushing Dimensions wt
Less
Bushing
O.D. PD. T OL L P C H
10
11
12
13
13 		 STL60G10H
 STL60H11H
 STL60H12H
 STL60H13H
 STL60P13H 		1
1
1
1
2 		2.76
2.96
3.25
3.45
3.45 		2.427
2.662
2.898
3.134
3.134 		G
H
H
H
P1 		0.459
0.459
0.459
0.459
0.459 		13/4
113/16
13/4
11/2
23/16		 1
11/4
11/4
11/4
115/16		 13/32
15/32
13/32
27/32
115/32		 9/16
3/8
5/16
1/16
- 		2
21/2
21/2
21/2
3		 0.6
0.7
0.8
0.9
1.1
14
14
15
15
16 		 STL60H14H
 STL60P14H
 STL60H15H
 STL60P15H
 STL60P16H 		1
2
1
2
2 		3.74
3.74
3.98
3.98
4.22 		3.371
3.371
3.607
3.607
3.844 		H
P1
H
P1
P1 		0.459
0.459
0.459
0.459
0.459 		11/2
23/16
11/2
23/16
23/16		 11/4
115/16
11/4
115/16
115/16		 27/32
115/32
27/32
115/32
115/32		 1/16
-
1/16
-
- 		21/2
3
21/2
3
3		 1.0
1.2
1.2
1.6
2.0
17
18
19
20
20 		 STL60P17H
 STL60P18H
 STL60P19H
 STL60P20H
 STL60Q20H 		2
2
2
2
2 		4.46
4.70
4.95
5.19
5.19 		4.082
4.319
4.557
4.794
4.794 		P1
P1
P1
P1
Q1 		0.459
0.459
0.459
0.459
0.459 		23/16
23/16
23/16
23/16
225/32		 115/16
115/16
115/16
115/16
21/2		 115/32
115/32
115/32
115/32
21/32		 -
-
-
-
- 		3
3
3
3
41/8		 2.2
2.4
2.5
3.0
3.5
21
21
22
22
23 		 STL60P21H
 STL60Q21H
 STL60P22H
 STL60Q22H
 STL60P23H 		2
2
2
2
2 		5.43
5.43
5.67
5.67
5.91 		5.032
5.032
5.270
5.270
5.508 		P1
Q1
P1
Q1
P1 		0.459
0.459
0.459
0.459
0.459 		23/16
225/32
23/16
225/32
23/16		 115/16
21/2
115/16
21/2
115/16		 115/32
21/32
115/32
21/32
115/32		 -
-
-
-
- 		3
41/8
3
41/8
3		 3.0
3.8
3.3
4.1
3.5
23
24
24
25
25 		 STL60Q23H
 STL60P24H
 STL60Q24H
 STL60P25H
 STL60Q25H 		2
2
2
2
2 		5.91
6.15
6.15
6.39
6.39 		5.508
5.746
5.746
5.984
5.984 		Q1
P1
Q1
P1
Q1 		0.459
0.459
0.459
0.459
0.459 		225/32
23/16
225/32
23/16
225/32		 21/2
115/16
21/2
115/16
21/2		 21/32
115/32
21/32
115/32
21/32		 -
-
-
-
- 		41/8
3
41/8
3
41/8		 4.3
3.9
4.5
4.3
6.0
26
26
27
27
28 		 STL60P26H
 STL60Q26H
 STL60P27H
 STL60Q27H
 STL60P28H 		2
2
2
2
2 		6.63
6.63
6.87
6.87
7.11 		6.222
6.222
6.460
6.460
6.699 		P1
Q1
P1
Q1
P1 		0.459
0.459
0.459
0.459
0.459 		23/16
225/32
23/16
225/32
23/16		 115/16
21/2
115/16
21/2
115/16		 115/32
21/32
115/32
21/32
115/32		 -
-
-
-
- 		3
41/8
3
41/8
3		 4.3
6.4
4.6
6.6
5.0
28
29
30
30
31 		 STL60Q28H
 STL60Q29H
 STL60P30H
 STL60Q30H
 STL60Q31H 		2
2
2
2
2 		7.11
7.35
7.59
7.59
7.83 		6.699
6.937
7.175
7.175
7.413 		Q1
Q1
P1
Q1
Q1 		0.459
0.459
0.459
0.459
0.459 		225/32
225/32
23/16
225/32
225/32		 21/2
21/2
115/16
21/2
21/2		 21/32
21/32
115/32
21/32
21/32		 -
-
-
-
- 		41/8
41/8
3
41/8
41/8		 6.9
7.3
5.6
7.7
7.8
32
33
34
35
36 		 STL60Q32H
 STL60Q33H
 STL60Q34H
 STL60Q35H
 STL60Q36H 		2
2
2
2
2 		8.07
8.30
8.54
8.78
9.02 		7.652
7.890
8.129
8.367
8.605 		Q1
Q1
Q1
Q1
Q1 		0.459
0.459
0.459
0.459
0.459 		225/32
225/32
225/32
225/32
225/32		 21/2
21/2
21/2
21/2
21/2		 21/32
21/32
21/32
21/32
21/32		 -
-
-
-
- 		41/8
41/8
41/8
41/8
41/8		 8.3
8.7
9.1
9.3
9.9
37
38
39
40
41 		 STL60Q37
 STL60Q38
 STL60Q39
 STL60Q40
 STL60Q41 		2
2
2
2
2 		9.26
9.50
9.74
9.98
10.22 		8.844
9.082
9.321
9.559
9.798 		Q1
Q1
Q1
Q1
Q1 		0.459
0.459
0.459
0.459
0.459 		225/32
225/32
225/32
225/32
225/32		 21/2
21/2
21/2
21/2
21/2		 21/32
21/32
21/32
21/32
21/32		 -
-
-
-
- 		41/8
41/8
41/8
41/8
41/8		 10.3
10.6
11.1
11.6
11.9
42
44
45
47
48 		 STL60Q42
 STL60Q44
 STL60Q45
 STL60Q47
 STL60Q48 		2
2
2
2
2 		10.46
10.94
11.18
11.65
11.89 		10.036
10.513
10.752
11.229
11.467 		Q1
Q1
Q1
Q1
Q1 		0.459
0.459
0.459
0.459
0.459 		225/32
225/32
225/32
225/32
225/32		 21/2
21/2
21/2
21/2
21/2		 21/32
21/32
21/32
21/32
21/32		 -
-
-
-
- 		41/8
41/8
41/8
41/8
41/8		 12.6
13.4
13.9
16.3
16.4
50
54
56
60
70 		 STL60Q50
 STL60Q54
 STL60Q56
 STL60Q60
 STL60Q70 		2
2
2
2
2 		12.37
13.33
13.81
14.73
17.12 		11.945
12.899
13.376
14.331
16.717 		Q1
Q1
Q1
Q1
Q1 		0.459
0.459
0.459
0.459
0.459 		225/32
225/32
225/32
225/32
225/32		 21/2
21/2
21/2
21/2
21/2		 21/32
21/32
21/32
21/32
21/32		 -
-
-
-
- 		41/8
41/8
41/8
41/8
41/8		 16.9
19.6
20.3
22.9
30.9
70
72
72
80
80 		 STL60R70
 STL60Q72
 STL60R72
  STL60Q80
  STL60R80 		2
2
2
2
2 		17.12
17.63
17.63
19.54
19.54 		16.717
17.194
17.194
19.103
19.103 		R1
Q1
R1
Q1
R1 		0.459
0.459
0.459
0.459
0.459 		35/32
225/32
35/32
225/32
35/32		 27/8
21/2
27/8
21/2
27/8		 21/32
21/32
213/32
21/32
213/32		 -
-
-
-
- 		53/8
41/8
53/8
41/8
53/8		 31.8
31.9
34.1
39.1
41.5
84
84
96
96
112
112 		 STL60Q84
 STL60R84
 STL60Q96
 STL60R96
 STL60Q112
 STL60R112 		2
2
2
2
2
2 		20.49
20.49
23.36
23.36
27.18
27.18 		20.058
20.058
22.922
22.922
26.742
26.742 		Q1
R1
Q1
R1
Q1
R1 		0.459
0.459
0.459
0.459
0.459
0.459 		225/32
35/32
225/32
35/32
225/32
35/32		 21/2
27/8
21/2
27/8
21/2
27/8		 21/32
213/32
21/32
213/32
21/32
213/32		 -
-
-
-
-
- 		41/8
53/8
41/8
53/8
41/8
53/8		 41.6
44.8
54.0
56.0
73.0
74.5

 

60-2 For 3/4’’ Pitch

60-2(2082d7faa4).png

Teeth

No. 		Catalog Type   Diameters Bushing Dimensions wt
Less
Bushing
O.D. P.D. T OL L P C H
13
14
15
16
17 		STL-D60P13H
STL-D60P14H
STL-D60P15H
STL-D60P16H
STL-D60P17H 		3
5
5
5B
5B 		3.45
3.74
3.98
4.22
4.46 		3.134
3.371
3.607
3.844
4.082 		P1
P1
P1
P1
P1 		0.444
0.444
0.444
0.444
0.444 		313/16
3
3
27/32
27/32		 115/16
115/16
115/16
115/16
115/16		 113/32
113/32
113/32
5/8
5/8		 15/8
13/16
13/16
1/32
1/32		 3
3
3
3
3 		2.5
2.3
2.7
2.4
2.8
18
19
20
21
22 		STL-D60P18H
STL-D60P19H
STL-D60P20H
STL-D60Q21H
STL-D60Q22H 		5B
5B
5B
5
5 		4.70
4.95
5.19
5.43
5.67 		4.319
4.557
4.794
5.032
5.270 		P1
P1
P1
Q1
Q1 		0.444
0.444
0.444
0.444
0.444 		27/32
27/32
27/32
225/32
225/32		 115/16
115/16
115/16
21/2
21/2		 5/8
5/8
5/8
15/32
15/32		 1/32
1/32
1/32
-
-		 3
3
3
41/8
41/8		 3.4
4.0
4.7
4.8
5.6
23
24
25
26
27 		STL-D60Q23H
STL-D60Q24H
STL-D60Q25H
STL-D60Q26H
STL-D60Q27H 		5
5
5
5
5 		5.91
6.15
6.39
6.63
6.87 		5.508
5.746
5.984
6.222
6.460 		Q1
Q1
Q1
Q1
Q1 		0.444
0.444
0.444
0.444
0.444 		225/32
225/32
225/32
225/32
225/32		 21/2
21/2
21/2
21/2
21/2		 15/32
15/32
15/32
15/32
15/32		 -
-
-
-
- 		41/8
41/8
41/8
41/8
41/8		 6.3
7.0
7.9
8.8
9.6
28
30
32
35
36 		STL-D60Q28H
STL-D60Q30H
STL-D60Q32H
STL-D60035H
STL-D60Q36H 		5
5
5
5
5 		7.11
7.59
8.07
8.78
9.02 		6.699
7.175
7.652
8.367
8.605 		Q1
Q1
Q1
Q1
Q1 		0.444
0.444
0.444
0.444
0.444 		225/32
225/32
225/32
225/32
225/32		 21/2
21/2
21/2
21/2
21/2		 15/32
15/32
15/32
15/32
15/32		 -
-
-
-
- 		41/8
41/8
41/8
41/8
41/8		 10.5
12.3
14.3
17.7
18.4
40
42
42
45
48 		STL-D60Q40
STL-D60Q42
STL-D60R42
STL-D60R45
STL-D60R48 		5
5
5
5
5 		9.98
10.46
10.46
11.18
11.89 		9.559
10.036
10.036
10.752
11.467 		Q1
Q1
R1
R1
R1 		0.444
0.444
0.444
0.444
0.444 		225/32
225/32
35/32
35/32
35/32		 21/2
21/2
27/8
27/8
27/8		 15/32
15/32
117/32
117/32
117/32		 -
-
-
-
- 		41/8
41/8
53/8
53/8
53/8		 23.9
26.3
25.7
30.2
35.1
52
54
60
68
72 		STL-D60R52
STL-D60R54
STL-D60R60
STL-D60R68
STL-D60R72 		5
5
5
5
5 		12.85
13.33
14.76
16.67
17.63 		12.422
12.899
14.331
16.240
17.194 		R1
R1
R1
R1
R1 		0.444
0.444
0.444
0.444
0.444 		35/32
35/32
35/32
35/32
35/32		 27/8
27/8
27/8
27/8
27/8		 117/32
117/32
117/32
117/32
117/32		 -
-
-
-
- 		53/8
53/8
53/8
53/8
53/8		 41.8
45.1
54.8
73.8
81.8
76
84
95
96 		STL-D60R76
STL-D60R84
STL-D60R95
STL-D60R96 		5
5
5
5 		18.58
20.49
23.12
23.36 		18.149
20.058
22.683
22.922 		R1
R1
R1
R1 		0.444
0.444
0.444
0.444 		35/32
35/32
35/32
35/32		 27/8
27/8
27/8
27/8		 117/32
117/32
117/32
117/32		 -
-
-
-
- 		53/8
53/8
53/8
53/8		 93.0
111
148
155

 

60-3 For 3/4’’ Pitch

60-3(0edd93efa7).png

 Teeth

  No. 		 Catalog Type   Diameters Bushing Dimensions Wt
Less
Bushing
O.D. P.D. T OL L P C H
13
14
15
16
17  		  STL-T60P13H
STL-T60P14H
 STL-T60P15H
 STL-T60P16H
 STL-T60Q17H 		8
6
6
7B
8  		3.49
3.74
3.98
4.22
4.46  		3.134
3.371
3.607
3.844
4.082  		P2
P2
P2
P1
Q1 		0.444
0.444
0.444
0.444
0.444  		423/32
329/32
329/32
31/8
5 		 215/16
215/16
215/16
115/16
31/2		 113/32
27/16
27/16
5/8
121/32		 117/32
123/32
123/32
15/16
11/4		 3
3
3
3
41/8		 3.3
3.3
4.0
3.4
4.6 
18
19
20
21
22  		  STL-T60Q18H
 STL-T60Q19H
 STL-T60Q20H
 STL-T60Q21H
 STL-T60Q22H 		6
6
6
7B
7B 		4.70
4.95
5.19
5.43
5.67  		4.319
4.557
4.794
5.032
5.270  		Q1
Q1
Q1
Q1
Q1 		0.444
0.444
0.444
0.444
0.444  		43/16
43/16
43/16
31/4
31/4		 31/2
31/2
31/2
21/2
21/2		 121/32
121/32
121/32
3/4
3/4		 13/32
13/32
13/32
15/32
15/32		 41/8
41/8
41/8
41/8
41/8		 5.0
5.9
7.0
5.7
6.6 
23
24
25
26
27  		  STL-T60Q23H
 STL-T60Q24H
 STL-T60Q25H
 STL-T60Q26H
 STL-T60Q27H 		7A
7A
7A
7A
7A 		5.91
6.15
6.39
6.63
6.87  		5.508
5.746
5.984
6.222
6.460  		Q1
Q1
Q1
Q1
Q1 		0.444
0.444
0.444
0.444
0.444  		225/32
225/32
225/32
225/32
225/32		 21/2
21/2
21/2
21/2
21/2		 1/4
1/4
1/4
1/4
1/4 		-
-
-
-
- 		41/8
41/8
41/8
41/8
41/8		 7.7
8.8
10.0
11.1
12.4 
28
30
32
35
36  		  STL-T60Q28H
 STL-T60R30H
 STL-T60R32H
 STL-T60R35H
 STL-T60R36H 		7A
7A
7A
7A
7A 		7.11
7.59
8.07
8.78
9.02  		6.699
7.175
7.652
8.367
8.605  		Q1
 R1
 R1
 R1
 R1 		0.444
0.444
0.444
0.444
0.444  		225/32
35/32
35/32
35/32
35/32		 21/2
27/8
27/8
27/8
27/8		 1/4
5/8
5/8
5/8
5/8 		-
-
-
-
- 		41/8
53/8
53/8
53/8
53/8		 13.6
14.0
19.0
22.0
23.4 
40
42
52
68  		STL-T60R40
STL-T60R42
STL-T60R52
STL-T60S68 		7A
7A
7A
6  		9.98
10.46
12.85
16.67  		9.559
10.036
12.422
16.240  		  R1
 R1
 R1
 S1 		0.444
0.444
0.444
0.444  		35/32
35/32
35/32
51/8		 27/8
27/8
27/8
43/8		 5/8
5/8
5/8
29/64		 -
-
-
- 		53/8
53/8
53/8
63/8		 31.3
35.3
63.2
122 

 

80-1 For 1’’ Pitch

80-1(9d6b587a0b).png

Teeth

No. 		Catalog Type Diameters Bushing Dimensions wt
Less
Bushing
O.D. P.D. T OL L P C H
10
11
11
12
13 		STL-80H10H
STL-80H11H
STL-80P11H
STL-80P12H
STL-80P13H 		1
1
2
2
2 		3.68
3.98
3.98
4.33
4.66 		3.236
3.550
3.550
3.864
4.179 		H
H
P1
P1
P1 		0.575
0.575
0.575
0.575
0.575 		23/32
11/2
211/32
23/16
23/16		 11/4
11/4
115/16
115/16
115/16		 13/8
3/4
117/32
13/8
13/8		 21/32
1/16
5/32
-
- 		21/2
21/2
3
3
3		 2.0
1.3
1.8
2.0
2.3
14
14
15
15
16 		STL-80P14H
STL-80Q14H
STL-80P15H
STL-80Q15H
STL-80P16H 		2
2
2
2
2 		4.98
4.98
5.31
5.31
5.63 		4.494
4.494
4.810
4.810
5.126 		P1
Q1
P1
Q1
P1 		0.575
0.575
0.575
0.575
0.575 		23/16
225/32
23/16
225/32
23/16		 115/16
21/2
115/16
21/2
115/16		 13/8
115/16
13/8
115/16
13/8		 -
-
-
-
- 		3
41/8
3
41/8
3		 2.7
3.0
3.2
3.6
3.6
16
17
17
18
18 		STL-80Q16H
STL-80P17H
STL-80Q17H
STL-80P18H
STL-80Q18H 		2
2
2
2
2 		5.63
5.95
5.95
6.27
6.27 		5.126
5.442
5.442
5.759
5.759 		Q1
P1
Q1
P1
Q1 		0.575
0.575
0.575
0.575
0.575 		225/32
23/16
225/32
23/16
225/32		 21/2
115/16
21/2
115/16
21/2		 115/16
13/8
115/16
13/8
115/16		 -
-
-
-
- 		41/8
3
41/8
3
41/8		 4.6
3.9
5.4
4.5
6.0
19
19
20
21
22 		STL-80P19H
STL-80Q19H
STL-80Q20H
STL-80Q21H
STL-80Q22H 		2
2
2
2
2 		6.59
6.59
6.91
7.24
7.56 		6.079
6.079
6.392
6.710
7.027 		P1
Q1
Q1
Q1
Q1 		0.575
0.575
0.575
0.575
0.575 		23/16
225/32
225/32
225/32
225/32		 115/16
21/2
21/2
21/2
21/2		 13/8
115/16
115/16
115/16
115/16		 -
-
-
-
- 		3
41/8
41/8
41/8
41/8		 4.8
6.4
6.9
7.4
8.0
23
24
25
26
27 		STL-80Q23H
STL-80Q24H
STL-80Q25H
STL-80Q26H
STL-80Q27H 		2
2
2
2
2 		7.88
8.20
8.52
8.84
9.16 		7.344
7.661
7.979
8.296
8.614 		Q1
Q1
Q1
Q1
Q1 		0.575
0.575
0.575
0.575
0.575 		225/32
225/32
225/32
225/32
225/32		 21/2
21/2
21/2
21/2
21/2		 115/16
115/16
115/16
115/16
115/16		 -
-
-
-
- 		41/8
41/8
41/8
41/8
41/8		 8.5
9.3
9.9
10.4
10.9
28
29
30
31
32 		STL-80Q28H
STL-80Q29H
STL-80Q30H
STL-80Q31H
STL-80Q32H 		2
2
2
2
2 		9.48
9.80
10.11
10.43
10.75 		8.931
9.249
9.567
9.885
10.202 		Q1
Q1
Q1
Q1
Q1 		0.575
0.575
0.575
0.575
0.575 		225/32
225/32
225/32
225/32
225/32		 21/2
21/2
21/2
21/2
21/2		 115/16
115/16
115/16
115/16
115/16		 -
-
-
-
- 		41/8
41/8
41/8
41/8
41/8		 11.5
12.5
13.0
13.9
14.8
33
34
35
36
36 		STL-80Q33H
STL-80Q34H
STL-80Q35H
STL-80Q36H
STL-80R36H 		2
2
2
2
2 		11.07
11.39
11.71
11.98
11.98 		10.520
10.838
11.156
11.474
11.474 		Q1
Q1
Q1
Q1
R1 		0.575
0.575
0.575
0.575
0.575 		225/32
225/32
225/32
225/32
35/32		 21/2
21/2
21/2
21/2
27/8		 115/16
115/16
115/16
115/16
25/16		 -
-
-
-
- 		41/8
41/8
41/8
41/8
53/8		 15.5
16.3
17.8
18.1
19.5
37
38
39
40
40 		STL-80Q37
STL-80Q38
STL-80R39
STL-80Q40
STL-80R40 		2
2
2
2
2 		12.35
12.67
12.99
13.31
13.31 		11.792
12.110
12.428
12.746
12.746 		Q1
Q1
R1
Q1
R1 		0.575
0.575
0.575
0.575
0.575 		225/32
225/32
35/32
225/32
35/32		 21/2
21/2
27/8
21/2
27/8		 115/16
115/16
25/16
115/16
25/16		 -
-
-
-
- 		41/8
41/8
53/8
41/8
53/8		 18.5
20.0
22.8
21.9
23.4
41
42
42
44
45 		STL-80R41
STL-80Q42
STL-80R42
STL-80R44
STL-80Q45 		2
2
2
2
2 		13.63
13.94
13.94
14.58
14.90 		13.064
13.382
13.382
14.018
14.336 		R1
Q1
R1
R1
Q1 		0.575
0.575
0.575
0.575
0.575 		35/32
225/32
35/32
35/32
225/32		 27/8
21/2
27/8
27/8
21/2		 25/16
115/16
25/16
25/16
115/16		 -
-
-
-
- 		53/8
41/8
53/8
53/8
41/8		 23.9
23.8
25.4
27.2
27.8
45
47
48
48
50 		STL-80R45
STL-80R47
STL-80Q48
STL-80R48
STL-80R50 		2
2
2
2
2 		14.90
15.54
15.86
15.86
16.50 		14.336
14.972
15.290
15.290
15.926 		R1
R1
Q1
R1
Ri 		0.575
0.575
0.575
0.575
0.575 		35/32
35/32
225/32
35/32
35/32		 27/8
27/8
21/2
27/8
27/8		 25/16
25/16
115/16
25/16
25/16		 -
-
-
-
- 		53/8
53/8
41/8
53/8
53/8		 28.5
31.0
30.8
32.3
35.1
54
54
56
60
60 		STL-80Q54
STL-80R54
STL-80R56
STL-80Q60
STL-80R60 		2
2
2
2
2 		17.77
17.77
18.41
19.68
19.68 		17.198
17.198
17.835
19.107
19.107 		Q1
R1
R1
Q1
R1 		0.575
0.575
0.575
0.575
0.575 		225/32
35/32
35/32
225/32
35/32		 21/2
27/8
27/8
21/2
27/8		 115/16
25/16
25/16
115/16
25/16		 -
-
-
-
- 		41/8
53/8
53/8
41/8
53/8		 38.5
40.8
44.0
46.8
47.3
70
70
72
72
80 		STL-80Q70
STL-80R70
STL-80Q72
STL-80R72
STL-80R80 		2
2
2
2A
2A 		22.83
22.83
23.46
23.46
26.01 		22.289
22.289
22.926
22.926
25.471 		Q1
R1
Q1
R1
R1 		0.575
0.575
0.575
0.575
0.575 		225/32
35/32
225/32
35/32
35/32		 21/2
27/8
21/2
27/8
27/8		 115/16
25/16
115/16
7/8
7/8		 -
-
-
17/16
17/16		 41/8
53/8
41/8
53/8
53/8		 60.0
63.5
67.5
69.4
85.0
84
96
112 		STL-80R84
STL-80R96
STL-80S112 		2A
2A
2A 		27.33
31.15
36.24 		26.744
30.563
35.655 		R1
R1
S1 		0.575
0.575
0.575 		35/32
35/32
43/4		 27/8
27/8
43/8		 7/8
7/8
11/8		 17/16
17/16
23/4		 53/8
53/8
63/8		 90.0
110
165

 

80-2 For 1’’ Pitch

80-2(7107191498).png

Teeth

NO. 		Catalog Type   Diameters Bushing Dimensions wt
Less
Bushing
O.D. P.D T OL L P C H
13    STL-D80P13H 5B 4.66  4.179   P1 0.557  219/32 115/16 5/8 13/32 3  3.6 
14    STL-D80Q14H 3  4.98  4.494   Q2 0.557  45/8 31/2 13/4 27/32 41/8 5.4 
15    STL-D80Q15H 5  5.31  4.810   Q2 0.557  325/32 31/2 13/4 - 41/8 5.4 
16    STL-D80Q16H 5B 5.63  5.126   Q1 0.557  225/32 21/2 3/4 - 41/8 4.8 
17    STL-D80Q17H 5B 5.95  5.442   Q1 0.557  225/32 21/2 3/4 - 41/8 6.0 
18    STL-D80Q18H 5B 6.27  5.759   Q1 0.557  225/32 21/2 3/4 - 41/8 7.3 
19    STL-D80Q19H 5B 6.59  6.076   Q1 0.557  225/32 21/2 3/4 - 41/8 8.5 
20    STL-D80R20H 5  6.91  6.392   R1 0.557  35/32 27/8 15/32 - 53/8 7.8 
21    STL-D80R21H 5  7.24  6.710   R1 0.557  35/32 27/8 15/32 - 53/8 9.4 
22    STL-D80R22H 5  7.56  7.027   R1 0.557  35/32 27/8 15/32 - 53/8 10.8 
23    STL-D80R23H 5  7.88  7.344   R1 0.557  35/32 27/8 15/32 - 53/8 12.3 
24    STL-D80R24H 5  8.20  7.661   R1 0.557  35/32 27/8 15/32 - 53/8 14.1 
25    STL-D80R25H 5  8.52  7.979   R1 0.557  35/32 27/8 15/32 - 53/8 15.8 
26    STL-D80R26H 5  8.84  8.296   R1 0.557  35/32 27/8 15/32 - 53/8 18.1 
27    STL-D80R27H 5  9.16  8.614   R1 0.557  35/32 27/8 15/32 - 53/8 20.4 
28    STL-D80R28H 5  9.48  8.931   R1 0.557  35/32 27/8 15/32 - 53/8 22.7 
30    STL-D80R30H 5  10.11  9.567   R1 0.557  35/32 27/8 15/32 - 53/8 26.8 
36    STL-D80R36H 5  12.03  11.474   R1 0.557  35/32 27/8 15/32 - 53/8 41.6 
42    STL-D80R42 5  13.94  13.382   R1 0.557  35/32 27/8 15/32 - 53/8 58.0 
45    STL-D80R45 5  14.90  14.336   R1 0.557  35/32 27/8 15/32 - 53/8 68.0 
48    STL-D80R48 5C 15.86  15.290   R2 0.557  55/32 47/8 7/8 29/32 53/8 86.0 
52    STL-D80R52 5C 17.13  16.562   R2 0.557  55/32 47/8 7/8 29/32 53/8 103 
54    STL-D80R54 5C 17.77  17.198   R2 0.557  55/32 47/8 7/8 29/32 53/8 111 
60    STL-D80R60 5C 19.64  19.107   R2 0.557  55/32 47/8 7/8 29/32 53/8 135 
68    STL-D80R68 5C 22.23  21.653   R2 0.557  55/32 47/8 7/8 29/32 53/8 176 
72    STL-D80R72 5C 23.46  22.926   R2 0.557  55/32 47/8 7/8 29/32 53/8 198 
76    STL-D80U76 5C 24.74  24.198   U0 0.557  523/32 51/4 11/2 21/32 83/8 219 
95    STL-D80U95 5C 30.83  30.245   U0 0.557  523/32 51/4 11/2 21/32 83/8 342 

80-3 For 1’’ Pitch

80-3(77ef0816c9).png

Teeth

No. 		 Catalog Type   Diameters Bushing Dimensions wt
Less
Bushing
O.D. P.D. T OL L P C H
13
14
15
16
17  		  STL-T80P13H
  STL-T80Q14H
  STL-T80Q15H
  STL-T80Q16H
  STL-T80Q17H 		7B
8
6
7A
7B 		4.66
4.98
5.31
5.63
5.95  		4.179
4.494
4.810
5.126
5.442  		P2
Q2
Q2
Q2
Q2 		0.557
0.557
0.557
0.557
0.557  		33/4
525/32
429/32
37/8
329/32 		215/16
31/2
31/2
31/2
31/2		 5/8
13/4
13/4
3/4
3/4 		9/16
2
11/8
3/32
1/8 		3
41/8
41/8
41/8
41/8 		5.7
7.5
8.1
9.3
9.8 
18
19
20
21
22  		  STL-T80Q18H
  STL-T80Q19H
  STL-T80R20H
  STL-T80R21H
  STL-T80R22H 		7B
7B
7B
7B
7B 		6.27
6.59
6.91
7.24
7.56  		5.759
6.076
6.392
6.710
7.027  		Q2
Q2
 R1
 R1
 R1 		0.557
0.557
0.557
0.557
0.557  		329/32
329/32
41/32
41/32
41/32		 31/2
31/2
27/8
27/8
27/8 		3/4
3/4
7/8
7/8
7/8 		1/8
1/8
7/8
7/8
7/8 		41/8
41/8
53/8
53/8
53/8 		12.0
13.9
10.2
12.4
14.6 
23
24
25
26
27 		  STL-T80R23H
  STL-T80R24H
  STL-T80R25H
  STL-T80R26H
  STL-T80R27H 		7A
7A
7A
7A
7A 		7.88
8.20
8.52
8.84
9.16 		7.344
7.661
7.979
8.296
8.614  		 R1
 R1
 R1
 R1
 R1 		0.557
0.557
0.557
0.557
0.557 		35/32
35/32
35/32
35/32
35/32		 27/8
27/8
27/8
27/8
27/8 		-
-
-
-
- 		-
-
-
-
- 		53/8
53/8
53/8
53/8
53/8 		15.9
18.5
20.3
23.4
25.8 
28
30
36
42
 45  		  STL-T80R28H
  STL-T80R30H
  STL-T80S36H
  STL-T80S42
  STL-T80S45 		7A
7A
6
6
6  		9.48
10.11
12.03
13.94
14.90  		8.931
9.567
11.474
13.382
14.336  		 R1
 R1
 S1
 S1
 S1 		0.557
0.557
0.557
0.557
0.557  		35/32
35/32
51/8
51/8
51/8		 27/8
27/8
43/8
43/8
43/8 		-
-
11/2
11/2
11/2		 -
-
-
-
- 		53/8
53/8
63/8
63/8
63/8 		28.1
33.3
67.0
96.1
112 
52
60
68
76
95  		  STL-T80U52
  STL-T80U60
  STL-T80U68
  STL-T80U76
  STL-T80U95 		6
6
6
6
7A 		17.13
19.68
22.23
24.78
30.83  		16.562
19.107
21.653
24.198
30.245  		 U0
 U0
 U0
 U0
 U0 		0.557
0.557
0.557
0.557
0.557  		523/32
523/32
523/32
523/32
555/64		 51/4
51/4
51/4
51/4
51/4 		23/8
23/8
23/8
23/8
113/32 		-
-
-
-
1 		83/8
83/8
83/8
83/8
83/8 		150
207
271
344
384 

 

100-1 For 1 1/4’’ Pitch

100-1(79ccdf82c7).png

Teeth

No. 		Catalog Type   Diameters Bushing Dimensions Wt
Less
Bushing
O.D. P.D. T OL L P C H
11
12
13
14
15 		STL100P11H
STL100Q12H
STL100Q13H
STL100Q14H
STL100Q15H 		2
2
2
2
2 		5.01
5.42
5.82
6.23
6.63 		4.437
4.830
5.223
5.617
6.012 		P1
Q1
Q1
Q1
Q1 		0.692
0.692
0.692
0.692
0.692 		23/16
227/32
227/32
225/32
225/32		 115/16
21/2
21/2
21/2
21/2		 11/4
17/8
17/8
113/16
113/16		 -
1/16
1/16
-
-		 3
41/8
41/8
41/8
41/8		 3.0
3.5
4.3
5.6
6.5
16
17
18
19
20 		STL100Q16H
STL100Q17H
STL100Q18H
STL100Q19H
STL100Q20H 		2
2
2
2
2 		7.03
7.44
7.84
8.24
8.64 		6.407
6.803
7.198
7.595
7.991 		Q1
Q1
Q1
Q1
Q1 		0.692
0.692
0.692
0.692
0.692 		225/32
225/32
225/32
225/32
225/32		 21/2
21/2
21/2
21/2
21/2		 113/16
113/16
113/16
113/16
113/16		 -
-
-
-
- 		41/8
41/8
41/8
41/8
41/8		 7.4
8.2
9.0
9.9
10.8
21
21
22
23
24 		STL100Q21H
STL100R21H
STL100Q22H
STL100Q23H
STL100Q24H 		2
2
2
2
2 		9.04
9.04
9.44
9.84
10.25 		8.387
8.387
8.783
9.180
9.577 		Q1
R1
Q1
Q1
Q1 		0.692
0.692
0.692
0.692
0.692 		225/32
35/32
225/32
225/32
225/32		 21/2
27/8
21/2
21/2
21/2		 113/16
23/16
113/16
113/16
113/16		 -
-
-
-
- 		41/8
53/8
41/8
41/8
41/8		 17.7
13.3
12.5
13.9
15.5
24
25
25
26
26 		STL100R24H
STL100Q25H
STL100R25H
STL100Q26H
STL100R26H 		2
2
2
2
2 		10.25
10.65
10.65
11.05
11.05 		9.577
9.973
9.973
10.370
10.370 		R1
Q1
R1
Q1
R1 		0.692
0.692
0.692
0.692
0.692 		35/32
225/32
35/32
225/32
35/32		 27/8
21/2
27/8
21/2
27/8		 23/16
113/16
23/16
113/16
23/16		 -
-
-
-
- 		53/8
41/8
53/8
41/8
53/8		 16.1
16.2
17.0
17.9
18.5
27
27
28
28
30 		STL100Q27H
STL100R27H
STL100Q28H
STL100R28H
STL100Q30H 		2
2
2
2
2 		11.45
11.45
11.84
11.84
12.64 		10.767
10.767
11.164
11.164
11.958 		Q1
R1
Q1
R1
Q1 		0.692
0.692
0.692
0.692
0.692 		225/32
35/32
225/32
35/32
225/32		 21/2
27/8
21/2
27/8
21/2		 113/16
23/16
113/16
23/16
113/16		 -
-
-
-
- 		41/8
53/8
41/8
53/8
41/8		 18.2
19.6
19.9
21.0
22.6
30
31
32
32
35 		STL100R30H
STL100R31
STL100Q32
STL100R32
STL100Q35 		2
2
2
2
2 		12.64
13.04
13.44
13.44
14.64 		11.958
12.356
12.753
12.753
13.945 		R1
R1
Q1
R1
Q1 		0.692
0.692
0.692
0.692
0.692 		35/32
35/32
225/32
35/32
225/32		 27/8
27/8
21/2
27/8
21/2		 23/16
23/16
113/16
23/16
113/16		 -
-
-
-
- 		53/8
53/8
41/8
53/8
41/8		 24.5
25.8
25.3
26.5
30.2
35
36
40
42
45 		STL100R35
STL100R36
STL100R40
STL100R42
STL100R45 		2
2
2
2
2 		14.64
15.04
16.63
17.43
18.63 		13.945
14.342
15.932
16.727
17.920 		R1
R1
R1
R1
R1 		0.692
0.692
0.692
0.692
0.692 		35/32
35/32
35/32
35/32
35/32		 27/8
27/8
27/8
27/8
27/8		 23/16
23/16
23/16
23/16
23/16		 -
-
-
-
- 		53/8
53/8
53/8
53/8
53/8		 29.8
33.0
40.9
44.3
50.5
48
54
60
70
72 		STL100R48
STL100R54
STL100R60
STL100R70
STL100R72 		2
2A
2A
2A
2A 		19.82
22.21
24.55
28.53
29.33 		19.112
21.498
23.884
27.862
28.657 		R1
R1
R1
R1
R1 		0.692
0.692
0.692
0.692
0.692 		35/32
35/32
35/32
35/32
35/32		 27/8
27/8
27/8
27/8
27/8		 23/16
7/8
7/8
7/8
7/8		 -
15/16
15/16
15/16
15/16		 53/8
53/8
53/8
53/8
53/8		 57.5
69.0
84.0
104
106
80
84 		STL100R80
STL100R84 		2A
2A 		32.52
34.11 		31.839
33.430 		R1
R1 		0.692
0.692 		35/32
35/32		 27/8
27/8		 7/8
7/8 		15/16
15/16		 53/8
53/8		 135
138

 

100-2 For 1 1/4’’ Pitch

100-2(11d4fe18de).png

Teeth

No. 		Catalog Type Diameters Bushing Dimensions
Wt
Less
Bushing
O.D. P.D. T OL L P C H
11
12
13
14
15  		STL-D100P11H
STL-D100Q12H
STL-D100Q13H
STL-D100Q14H
STL-D100Q15H 		5A
5
5
5A
5A 		5.01
5.42
5.82
6.23
6.63  		4.437
4.830
5.223
5.617
6.012  		P1
Q2
Q2
Q1
Q1 		0.669
0.669
0.669
0.669
0.669  		215/16
47/32
47/32
33/32
33/32		 115/16
31/2
31/2
21/2
21/2		 5/8
155/64
155/64
3/4
3/4		 3/4
7/16
7/16
5/16
5/16		 3
41/8
41/8
41/8
41/8		 4.7
5.9
7.9
8.4
9.1 
16
17
18
19
20  		STL-D100Q16H
STL-D100R17H
STL-D100R18H
STL-D100R19H
STL-D100R20H 		5A
5A
5A
5A
5A 		7.03
7.44
7.84
8.24
8.64  		6.407
6.803
7.198
7.595
7.991  		Q1
R1
R1
R1
R1 		0.669
0.669
0.669
0.669
0.669  		33/32
37/32
37/32
37/32
37/32		 21/2
27/8
27/8
27/8
27/8		 3/4
7/8
7/8
7/8
7/8		 5/16
1/16
1/16
1/16
1/16		 41/8
53/8
53/8
53/8
53/8		 10.9
11.0
12.3
14.9
17.4 
21
22
24
35
45  		STL-D100R21H
STL-D100R22H
STL-D100R24H
  STL-D100R35
  STL-D100S45 		5A
5A
5A
5A
5C 		9.04
9.44
10.25
14.64
18.63  		8.387
8.783
9.577
13.945
17.920  		R1
R1
R1
R1
S1 		0.669
0.669
0.669
0.669
0.669  		37/32
37/32
37/32
37/32
43/4		 27/8
27/8
27/8
27/8
43/8		 7/8
7/8
7/8
7/8
11/16		 1/16
1/16
1/16
1/16
115/64		 53/8
53/8
53/8
53/8
63/8		 20.3
22.8
29.5
76.8
138 
60
70
80  		    STL-D100S60
  STL-D100S70
  STL-D100S80 		5C
5D
5D 		24.60
28.58
32.57  		23.884
27.862
31.839  		S1
S1
S1 		0.669
0.669
0.669  		43/4
71/8
71/8		 43/8
63/4
63/4		 11/16
27/16
27/16		 115/64
21/4
21/4		 63/8
63/8
63/8		 251
358
431 

 

120-1 For 1 1/2’’ Pitch

120-1(90cd239c5c).png

Teeth

No. 		Catalog Type Diameters Bushing Dimensions wt
Less
Bushing
O.D. P.D. T OL L P C H
11
12
13
14
15 		STL120Q11H
STL120Q12H
STL120Q13H
STL120Q14H
STL120Q15H 		2
2
2
2
2 		6.01
6.50
6.99
7.47
7.96 		5.324
5.796
6.268
6.741
7.215 		Q1
Q1
Q1
Q1
Q1 		0.924
0.924
0.924
0.924
0.924 		225/32
225/32
225/32
225/32
225/32		 21/2
21/2
21/2
21/2
21/2		 19/16
19/16
19/16
19/16
19/16		 -
-
-
-
- 		41/8
41/8
41/8
41/8
41/8		 4.8
6.3
7.9
9.1
10.4
16
16
17
17
18 		STL120Q16H
STL120R16H
STL120Q17H
STL120R17H
STL120Q18H 		2
2
2
2
2 		8.39
8.39
8.88
8.88
9.41 		7.689
7.689
8.163
8.163
8.638 		Q1
R1
Q1
R1
Q1 		0.924
0.924
0.924
0.924
0.924 		225/32
35/32
225/32
35/32
225/32		 21/2
27/8
21/2
27/8
21/2		 19/16
115/16
19/16
115/16
19/16		 -
-
-
-
- 		41/8
53/8
41/8
53/8
41/8		 11.8
12.3
13.4
13.6
15.6
18
19
20
21
22 		STL120R18H
STL120R19H
STL120R20H
STL120R21H
STL120R22H 		2
2
2
2
2 		9.41
9.89
10.37
10.85
11.33 		8.638
9.113
9.589
10.064
10.540 		R1
R1
R1
R1
R1 		0.924
0.924
0.924
0.924
0.924 		35/32
35/32
35/32
35/32
35/32		 27/8
27/8
27/8
27/8
27/8		 115/16
115/16
115/16
115/16
115/16		 -
-
-
-
- 		53/8
53/8
53/8
53/8
53/8		 15.9
16.8
18.8
21.0
22.5
23
24
25
26
28 		STL120R23H
STL120R24H
STL120R25H
STL120R26H
STL120R28H 		2
2
2
2A
2A 		11.81
12.29
12.77
13.25
14.21 		11.016
11.492
11.968
12.444
13.397 		R1
R1
R1
R1
R1 		0.924
0.924
0.924
0.924
0.924 		35/32
35/32
35/32
35/32
35/32		 27/8
27/8
27/8
27/8
27/8		 115/16
115/16
115/16
7/8
7/8		 -
-
-
11/16
11/16		 53/8
53/8
53/8
53/8
53/8		 24.8
26.9
29.8
329
38.3
30
32
35
36
40 		STL120R30H
STL120R32
STL120R35
STL120R36
STL120R40 		2A
2A
2C
2C
2C 		15.17
16.13
17.57
18.05
19.96 		14.350
15.303
16.734
17.211
19.118 		R1
R1
R2
R2
R2 		0.924
0.924
0.924
0.924
0.924 		35/32
35/32
55/32
55/32
55/32		 27/8
27/8
47/8
47/8
47/8		 7/8
7/8
115/16
115/16
115/16		 11/16
11/16
2
2
2		 53/8
53/8
53/8
53/8
53/8		 43.4
49.4
68.0
72.0
82.0
40
42
45
45
48 		STL120S40
STL120S42
STL120R45
STL120S45
STL120S48 		2A
2A
2C
2A
2A 		19.96
20.92
22.35
22.35
23.79 		19.118
20.072
21.503
21.503
22.935 		S1
S1
R2
S1
S1 		0.924
0.924
0.924
0.924
0.924 		43/4
43/4
55/32
43/4
43/4		 43/8
43/8
47/8
43/8
43/8		 11/16
11/16
115/16
11/16
11/16		 23/8
23/8
2
23/8
23/8		 63/8
63/8
53/8
63/8
63/8		 83.0
90.0
102
108
111
54
60
60
70
70 		STL120S54
STL120R60
STL120S60
STL120R70
STL120S70 		2A
2C
2A
2C
2A 		26.65
29.52
29.52
34.30
34.30 		25.798
28.661
28.611
33.434
33.434 		S1
R2
S1
R2
S2 		0.924
0.924
0.924
0.924
0.924 		43/4
55/32
43/4
55/32
71/8		 43/8
47/8
43/8
47/8
63/4		 11/16
115/16
11/16
115/16
215/16		 23/8
2
23/8
2
27/8		 63/8
53/8
63/8
53/8
63/8		 138
179
180
248
267
80
80 		STL120R80
STL120S80 		2C
2C 		39.08
39.08 		38.207
38.207 		R2
S2 		0.924
0.924 		55/32
71/8		 47/8
63/4		 115/16
215/16		 2
27/8		 53/8
63/8		 291
305

 

140-1 For 1 3/4’’ Pitch

140-1(825d5999cc).png


Teeth
No. 		Catalog Type Diameters Bushing Dimensions wt
Less
Bushing
O.D. P.D. T OL L P C H
11
12
13
14
 15  		STL140Q11H
STL140Q12H
STL140R13H
STL140R14H
STL140R15H 		2
2
2
2
2  		7.01
7.58
8.15
8.72
9.28  		6.212
6.762
7.313
7.864
 8.417  		Q1
 Q1
 R1
 R1
 R1 		0.924
0.924
0.924
0.924
0.924  		225/32
225/32
35/32
35/32
35/32		 21/2
21/2
27/8
27/8
27/8		 19/16
19/16
115/16
115/16
115/16		 -
-
-
-
- 		41/8
41/8
53/8
53/8
53/8		 6.4
9.1
11.1
12.6
14.7 
16
17
18
19
 20  		STL140R16H
STL140R17H
STL140R18H
STL140R19H
STL140R20H 		2
2
2
2
2  		9.85
10.41
10.97
11.54
12.10  		8.970
9.524
10.078
10.632
11.187  		 R1
 R1
 R1
 R1
 R1 		0.924
0.924
0.924
0.924
0.924  		35/32
35/32
35/32
35/32
35/32		 27/8
27/8
27/8
27/8
27/8		 115/16
115/16
115/16
115/16
115/16		 -
-
-
-
- 		53/8
53/8
53/8
53/8
53/8		 16.5
18.5
20.5
23.0
25.4 
21
22
23
24
 25  		STL140R21H
STL140R22H
STL140R23H
STL140R24H
STL140R25H 		2
2A
2A
2A
2A 		12.66
13.22
13.78
14.34
14.90  		11.742
12.297
12.852
13.407
13.963  		 R1
 R1
 R1
 R1
 R1 		0.924
0.924
0.924
0.924
0.924  		35/32
35/32
35/32
35/32
35/32		 27/8
27/8
27/8
27/8
27/8		 115/16
7/8
7/8
7/8
7/8		 -
11/16
11/16
11/16
11/16		 53/8
53/8
53/8
53/8
53/8		 27.8
32.5
36.0
37.6
40.3 
26
30
35
36
36  		STL140R26
STL140R30
STL140R35
STL140R36
STL140S36 		2A
2C
2C
2C
2A 		15.46
17.70
20.49
21.05
21.05  		14.513
16.742
19.523
20.079
20.079  		 R1
 R2
 R2
 R2
 S1 		0.924
0.924
0.924
0.924
0.924  		35/32
55/32
55/32
55/32
43/4		 27/8
47/8
47/8
47/8
43/8		 7/8
115/16
115/16
115/16
11/16		 11/16
2
2
2
23/8		 53/8
53/8
53/8
53/8
63/8		 44.0
68.0
88.0
90.0
99.0 
40
40
45
48
 54  		STL140R40
STL140S40
STL140S45
STL140S48
STL140S54 		2C
2A
2A
2C
2C 		23.29
23.29
26.08
27.75
31.10  		22.305
22.305
25.087
26.757
30.097  		 R2
 S1
 S1
 S2
 S2 		0.924
0.924
0.924
0.924
0.924  		55/32
43/4
43/4
71/2
71/2		 47/8
43/8
43/8
63/4
63/4		 115/16
11/16
11/16
215/16
215/16		 2
23/8
23/8
27/8
27/8		 53/8
63/8
63/8
63/8
63/8		 109.0
117
132
169
208 
60
70
 80  		STL140S60
STL140S70
STL140S80 		2C
2C
2C 		34.44
40.02
45.59  		33.438
39.006
44.575  		 S2
 S2
 S2 		0.924
0.924
0.924  		71/2
71/2
71/2		 63/4
63/4
63/4		 215/16
215/16
215/16		 27/8
27/8
27/8		 63/8
63/8
63/8		 230
311
342 

160-1 For 2’’ Pitch

160-1(5b083df769).png

Teeth

 No. 		 Catalog Type Diameters Bushing Dimensions Wt
Less
Bushing
O.D. P.D. T OL L P C H
  11
  12
  13
  14
  15 		STL160R11H
STL160R12H
STL160R13H
STL160R14H
STL160R15H 		2
2
2
2
2 		8.01
8.66
9.31
9.96
10.61 		 7.099
 7.727
 8.357
 8.988
 9.620 		R1
R1
R1
R1
R1 		1.156
1.156
1.156
1.156
1.156 		313/32
313/32
35/32
35/32
35/32		 27/8
27/8
27/8
27/8
27/8		 131/32
131/32
123/32
123/32
123/32		 1/4
1/4
-
-
- 		53/8
53/8
53/8
53/8
53/8		 10.8
14.2
15.5
18.5
21.6
  16
  17
  18
  19
  20 		 STL160R16H
STL160R17H
STL160R18H
STL160R19H
STL160R20H 		2
2
2
2
2C 		11.25
11.90
12.54
13.19
13.83 		 10.252
 10.885
 11.518
 12.151
 12.785 		R1
R1
R1
R1
R2 		1.156
1.156
1.156
1.156
1.156 		35/32
35/32
35/32
35/32
55/32		 27/8
27/8
27/8
27/8
47/8		 123/32
123/32
123/32
123/32
123/32		 -
-
-
-
2 		53/8
53/8
53/8
53/8
53/8		 25.0
28.0
31.9
35.9
51.0
  21
  22
  23
  24
  25 		 STL160R21H
STL160R22H
STL160R23H
STL160R24H
STL160B25H 		2C
2C
2C
2C
2C 		14.47
15.11
15.75
16.39
17.03 		 13.419
 14.053
 14.688
 15.323
 15.958 		R2
R2
R2
R2
R2 		1.156
1.156
1.156
1.156
1.156 		55/32
55/32
55/32
55/32
55/32		 47/8
47/8
47/8
47/8
47/8		 123/32
123/32
123/32
123/32
123/32		 2
2
2
2
2 		53/8
53/8
53/8
53/8
53/8		 56.0
60.0
65.0
71.5
74.0
  26
  28
  30
  30
  35 		 STL160R26
STL160R28
STL160R30
STL160S30
STL160S35 		2C
2C
2C
2C
2C 		17.67
18.95
20.23
20.23
23.42 		 16.593
 17.863
 19.134
 19.134
 22.312 		R2
R2
R2
S2
S2 		1.156
1.156
1.156
1.156
1.156 		55/32
55/32
55/32
71/8
71/8		 47/8
47/8
47/8
63/4
63/4		 123/32
123/32
123/32
223/32
223/32		 2
 2
2
27/8
27/8		 53/8
53/8
53/8
63/8
63/8		 79.0
100
106
115
150
40
45
60
70
80 		STL160S40
 STL160S45
 STL160U60
 STL160U70
 STL160U80 		2C
2C
2C
2C
2C 		26.61
29.80
39.36
45.73
52.10  		25.491
28.671
38.215
44.578
50.943  		S2
S2
U0
U0
U1 		1.156
1.156
1.156
1.156
1.156  		71/8
71/8
525/32
525/32
719/32		 63/4
63/4
51/4
51/4
71/8		 223/32
223/32
25/32
25/32
33/32		 27/8
27/8
115/16
115/16
27/8		 63/8
63/8
83/8
83/8
83/8		 165
204
354
378
394 

 

200-1 For 2 1/2’’ Pitch

200-1(a4df556a03).png

Teeth
 No. 		Catalog Type  Diameters Bushing Dimensions Wt
Less
Bushing
O.D. P.D. T OL L P C H
12
13
14
15
16 		STL200R12
STL200S13
STL200S14
STL200S15
STL200S16 		2C
2C
2C
2C
2C 		10.83
11.64
12.46
13.26
14.07 		9.660
10.447
11.235
12.025
12.815 		R2
S2
S2
S2
S2 		1.389
1.389
1.389
1.389
1.389 		55/32
71/8
71/8
71/8
71/8		 47/8
63/4
63/4
63/4
63/4		 11/2
21/2
21/2
21/2
21/2		 2
27/8
27/8
27/8
27/8		 53/8
63/8
63/8
63/8
63/8		 35.3
52.2
57.5
61.0
71.0
17
18
19
20
21 		STL200S17
STL200U18
STL200U19
STL200U20
STL200U21 		2C
2C
2C
2C
2C 		14.87
15.68
16.48
17.29
18.09 		13.605
14.397
15.190
15.982
16.775 		S2
Uo
Uo
Uo
Uo 		1.389
1.389
1.389
1.389
1.389 		71/8
523/32
523/32
523/32
523/32		 63/4
51/4
51/4
51/4
51/4		 21/2
21/4
21/4
21/4
21/4		 27/8
15/8
15/8
15/8
15/8		 63/8
83/8
83/8
83/8
83/8		 79.0
76.5
83.7
91.3
99.4
22
23
24
25
26 		STL200U22
STL200U23
STL200U24
STL200U25
STL200U26 		2C
2C
2C
2C
2C 		18.89
19.69
20.49
21.29
22.09 		17.567
18.360
19.152
19.947
20.740 		Uo
Uo
U0
Uo
Uo 		1.389
1.389
1.389
1.389
1.389 		523/32
523/32
523/32
523/32
523/32		 51/4
51/4
51/4
51/4
51/4		 21/4
21/4
21/4
21/4
21/4		 15/8
15/8
15/8
15/8
15/8		 83/8
83/8
83/8
83/8
83/8		 110
117
126
140
150
28
30
32
35
40 		STL200U28
STL200U30
STL200U32
STL200U35
STL200U40 		2C
2C
2C
2C
2C 		23.69
25.29
26.88
29.28
33.27 		22.330
23.917
25.505
27.890
31.865 		Uo
Uo
Uo
U1
U1 		1.389
1.389
1.389
1.389
1.389 		523/32
523/32
523/32
719/32
719/32		 51/4
51/4
51/4
71/8
71/8		 21/4
21/4
21/4
27/8
27/8		 15/8
15/8
15/8
27/8
27/8		 83/8
83/8
83/8
83/8
83/8		 169
188
212
252
306
45
54
60 		STL200U45
STL200U54
STL200U60 		2C
2C
2C 		37.25
44.42
49.20 		35.840
42.995
47.767 		U1
U2
U2 		1.389
1.389
1.389 		719/32
1019/32
1019/32		 71/8
101/8
101/8		 27/8
41/2
41/2		 27/8
41/4
41/4		 83/8
83/8
83/8		 290
385
445

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