Sprockets attach to rotating shafts and transmit power to your roller chain. Idler sprockets maintain constant tension on your drive by pressing against your chain to take up slack and reduce wear and vibration. Bushing-bore sprockets mate with bushings that can be swapped out for a different bore size, so there's no need to replace your sprocket when working with multiple shaft diameters.
Chain No.
No. of Teeth
Basic Dimensions/Shape
Common Basic Specification Dimensions
Pitch Circle Diameter Dp
Outer Diameter Do
Tooth Width T
Tooth Section Shape
Prepared Hole Diameter d
Shaft Diameter Range d (MAX)
Boss Diameter DH
Total Width DL
Center Distance L (CW-type)
Mass kg
K3075R
6
150
158
12
S1
20
50
73
57
28.5
3
8
196
209
20
55
83
62
31
4.8
10
242.7
259
20
60
93
67
33.5
7.1
12
289.8
308
20
60
93
67
33.5
9
K3100R
6
200
206
12
S2 S2 S1
20
55
83
62
31
4.9
8
261.3
272
S1
20
60
93
67
33.5
7.8
10
323.6
336
20
65
98
72
36
11.1
12
386.4
401
20
65
98
72
36
14.4
K5100R
6
200
205
18
S1
26
75
107
86
43
8.8
8
261.3
272
26
75
107
86
43
12
10
323.6
340
26
80
117
94
47
17.4
12
386.4
405
26
85
127
104
52
24.4
K5150R
6
300
304
18
S2
26
80
117
94
47
15.8
8
392
402
26
85
127
104
52
24.9
10
485.4
500
26
95
137
116
58
36.7
12
579.6
596
26
95
137
116
58
47.8
K10100R
6
200
214
22
S1
30
75
107
90
45
9.8
8
261.3
282
30
85
127
108
54
17.1
10
323.6
349
30
95
137
120
60
24.7
12
386.4
414
30
100
147
123
61.5
32.6
K10150R
6
300
309
22
S2 S2 S2
30
95
137
120
60
22.7
8
392
408
S1
30
100
147
123
61.5
33.2
10
485.4
506
30
110
157
133
66.5
47.6
12
579.6
601
30
115
167
144
72
65.2
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