Sprockets

A sprocket, also referred to as a sprocket wheel or chainwheel, is a form of toothed wheel commonly used to drive roller chains within industrial power transmission via rotation. The teeth of a sprocket are designed to slot into the links of a chain or belt, with various sizes available to accommodate for numerous chain pitch sizes. Read our sprockets guide for more in-depth information on sprockets and how to select the correct one for a chain.

Is a sprocket the same as a gear?

Sprockets differ from gears as they work independently and do not interlock. In power transmission applications such as gearboxes, drive chains and conveyer chains, sprockets transmit shaft rotation to chains and vice versa. When there is an even number of pitches in the chain, by using a sprocket with an odd number of teeth, this results in uniform wear over both the chain and sprocket teeth.

What type of sprockets are there?

Sprockets are available with several different bore types to suit a range of applications. The most common types used to drive chains and roller chains in industrial and domestic applications include:

  • Parallel
  • Pilot
  • Taper Bush
  • Through Bore

Where are sprockets used?

Sprockets are used in a wide range of industrial and domestic applications, most commonly to operate machinaery and vehicles. You are likely to find sprockets used in areas such as:

  • Bicycles or bikes
  • Motorcycles
  • Tanks
  • Farming machinery
  • Cameras

...
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Description Price To Fit British Standard Chain Type Number of Teeth Bore Type Maximum Bore Diameter Pitch Diameter Material Pulley Width Sprocket Width
RS Stock No. 184-094
BrandRS PRO
SGD30.03
Each
units
06B-1 38 Pilot 16mm 115.35mm Steel - 40mm
RS Stock No. 182-880
BrandRS PRO
SGD5.70
Each
units
05B-1 13 Pilot 10mm 33.42mm Steel - 35mm
RS Stock No. 184-757
BrandRS PRO
SGD22.83
Each
units
08B-1 20 Pilot 40mm 81.19mm Steel - 35mm
RS Stock No. 183-265
BrandRS PRO
SGD18.28
Each
units
08B-1 17 Taper Bush - 69.11mm Steel - -
RS Stock No. 184-101
BrandRS PRO
SGD10.85
Each
units
08B-1 13 Pilot 20mm 53.06mm Steel - 35mm
RS Stock No. 183-423
BrandRS PRO
SGD13.04
Each
units
08B-1 15 Pilot 12mm 61.09mm Steel - 35mm
RS Stock No. 183-675
BrandRS PRO
SGD11.14
Each
units
06B-1 19 Pilot 12mm 57.87mm Steel - 35mm
RS Stock No. 183-704
BrandRS PRO
SGD10.85
Each
units
06B-1 18 Pilot 12mm 54.85mm Steel - 35mm
RS Stock No. 184-864
BrandRS PRO
SGD22.83
Each
units
05B-1 38 Pilot 16mm 115.35mm Steel - 40mm
RS Stock No. 183-170
BrandRS PRO
SGD56.08
Each
units
08B-1 38 Pilot 16mm 153.8mm Steel - 40mm
RS Stock No. 183-439
BrandRS PRO
SGD13.77
Each
units
08B-1 16 Pilot 12mm 65.1mm Steel - 35mm
RS Stock No. 781-0766
Mfr. Part No.KS3/8X10
BrandResatec
SGD41.97
Each
units
06B-1 15 Through Bore 14mm 45.81mm Galvanized Steel - 5.7mm
RS Stock No. 183-467
BrandRS PRO
SGD16.98
Each
units
08B-1 18 Pilot 12mm 73.14mm Steel - 35mm
RS Stock No. 184-167
BrandRS PRO
SGD26.64
Each
units
08B-1 20 Taper Bush - 81.19mm Steel - -
RS Stock No. 184-713
BrandRS PRO
SGD7.80
Each
units
05B-1 17 Pilot 12mm 51.83mm Steel - 35mm
RS Stock No. 183-681
BrandRS PRO
SGD12.88
Each
units
06B-1 21 Pilot 14mm 63.91mm Steel - 40mm
RS Stock No. 146-5436
BrandRS PRO
SGD9.12
Each
units
- 11 Pilot 10mm 45.07mm - - 48.7mm
RS Stock No. 146-5430
BrandRS PRO
SGD4.52
Each
units
- 10 Pilot 8mm 30.82mm - - 34mm
RS Stock No. 194-7233
Mfr. Part No.KSR20-B0-08-10-18-08
BrandINA
SGD96.83
Each
units
- 18 Parallel 20mm 1/2in Steel - 31mm
RS Stock No. 194-7225
Mfr. Part No.KSR15-B0-08-10-16-08
BrandINA
SGD78.37
Each
units
- 16 Parallel 15mm 1/2in Steel - 28.6mm