About our Chain Sprockets

Advantages of molded nylon Roller Chain Sprockets:
lightweight, more quiet than steel, non-corrosive and can run without lubrication.

  • The S25 series is a molded, glass-reinforced nylon sprocket that is lightweight, durable, and economical.
  • Select from 9 to 48 tooth, 1/4" pitch single sprocket with B Hub configuration.
  • The Sprockets are molded with three standard bore sizes, 1/4", 3/8", and 1/2" with a single shaft locking setscrew. Non-standard bores are available upon request.
  • Options:  The sprockets can be molded with D-bore, keyway, or non-standard bore size. Instead of a setscrew, a cross hole drilled in the hub for dowel pin.
  • For greater strength, aluminum hubs are available for S-2516 sprocket and larger. With an aluminum hub, single, double, or triple sprockets are available.
  • Made In USA

Download our catalog to learn more, or contact us today.

ROLLER CHAIN SPROCKET DIMENSIONS AND BORES

Sprocket
Number

Number
of Teeth
Outside
Dia.
Pitch
Dia.
Root
Dia.
Standard Bores
Type
1/4
3/8
1/2
S 2509
S 2510
S 2511
S 2512
S 2513
09
10
11
12
13
0.850
0.931
1.010
1.092
1.170
0.731
0.809
0.887
0.997
1.044
0.601
0.769
0.757
0.836
0.914








 

 

S 2514
S 2515
14
15
1.250
1.332
1.123
1.202
0.993
1.072



S 2516*
S 2517*
S 2518*
S 2519*
S 2520*
S 2521*
S 2522*
S 2523*
S 2524*
S 2526*
S 2528*
S 2530*
16
17
18
19
20
21
22
23
24
26
28
30
1.412
1.493
1.573
1.654
1.731
1.813
1.892
1.972
2.052
2.214
2.368
2.529
1.281
1.360
1.439
1.519
1.598
1.677
1.757
1.836
1.915
2.074
2.233
2.392
1.151
1.230
1.309
1.389
1.468
1.547
1.626
1.706
1.785
1.944
2.103
2.262

































S 2532*
S 2536*
S 2540*
S 2542*
S 2545*
S 2548*
32
36
40
42
45
48
2.686
3.003
3.319
3.484
3.716
3.955
2.550
2.868
3.186
3.345
3.583
3.822
2.420
2.738
3.056
3.215
3.454
3.692















* Aluminum hub available upon request.

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