Pilot Bore Sprockets

Pilot Bore Sprockets are used in industrial machinery, as well as vehicles that use drive chains like bicycles and motorcycles. The term sprocket usually applies to a wheel driven by a chain or it might equally refer to the teeth or cogs present in a mechanical wheel.

Pilot Bore Sprockets, sometimes known as "Rough Stock Bore Sprockets", are supplied as a standard with a plain boss, an unusually cylindrical projection that provides a contact surface around a hole. This type of sprocket is machined to fit on a shaft.

Depending on the type of application, there are three major types of Pilot Bore Sprockets available at Bearing Shop UK:

- Simplex Pilot Bore Sprockets

- Duplex Pilot Bore Sprockets

- Triplex Pilot Bore Sprockets

The term “simplex” refers to single strand chains. Thus, choosing between simplex, duplex, and triplex Pilot Bore Sprockets is easily determinable by the number of chain rows..



Aside from Pilot Bore Sprockets, we provide Power Transmission products that include V BeltsV Pulley, Couplings & Gears, and several more mechanical products like Bearings & Bushes, Tools & Fasteners, and many more.

Can't find what you are looking for? Contact us and we will help you find the products you need.

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  1. 4DR08 Duplex Pilot Bore Sprocket
    £5.18 £4.32
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 8
    PCD: 32.34mm

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  2. 4DR09 Duplex Pilot Bore Sprocket
    £5.88 £4.90
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 9
    PCD: 36.38mm

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  3. 4DR10 Duplex Pilot Bore Sprocket
    £6.56 £5.47
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 10
    PCD: 40.43mm

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  4. 4DR11 Duplex Pilot Bore Sprocket
    £7.26 £6.05
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 11
    PCD: 44.47mm

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  5. 4DR12 Duplex Pilot Bore Sprocket
    £7.43 £6.19
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 12
    PCD: 48.51mm

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  6. 4DR13 Duplex Pilot Bore Sprocket
    £8.47 £7.06
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 13
    PCD: 52.55mm

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  7. 4DR14 Duplex Pilot Bore Sprocket
    £9.50 £7.92
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 14
    PCD: 56.6mm

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  8. 4DR15 Duplex Pilot Bore Sprocket
    £9.67 £8.06
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 15
    PCD: 60.64mm

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  9. 4DR16 Duplex Pilot Bore Sprocket
    £10.54 £8.78
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 16
    PCD: 64.68mm

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  10. 4DR17 Duplex Pilot Bore Sprocket
    £11.23 £9.36
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 17
    PCD: 68.72mm

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  11. 4DR18 Duplex Pilot Bore Sprocket
    £12.61 £10.51
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 18
    PCD: 72.77mm

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  12. 4DR19 Duplex Pilot Bore Sprocket
    £13.48 £11.23
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 19
    PCD: 76.81mm

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  13. 4DR20 Duplex Pilot Bore Sprocket
    £13.48 £11.23
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 20
    PCD: 80.85mm

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  14. 4DR21 Duplex Pilot Bore Sprocket
    £15.55 £12.96
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 21
    PCD: 84.89mm

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  15. 4DR22 Duplex Pilot Bore Sprocket
    £16.07 £13.39
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 22
    PCD: 88.94mm

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  16. 4DR23 Duplex Pilot Bore Sprocket
    £16.76 £13.97
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 23
    PCD: 92.98mm

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  17. 4DR24 Duplex Pilot Bore Sprocket
    £18.14 £15.12
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 24
    PCD: 97.02mm

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  18. 4DR25 Duplex Pilot Bore Sprocket
    £20.04 £16.70
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 25
    PCD: 101.06mm

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  19. 4DR26 Duplex Pilot Bore Sprocket
    £20.57 £17.14
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 26
    PCD: 105.11mm

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  20. 4DR27 Duplex Pilot Bore Sprocket
    £23.16 £19.30
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 27
    PCD: 109.15mm

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  21. 4DR28 Duplex Pilot Bore Sprocket
    £24.19 £20.16
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 28
    PCD: 113.19mm

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  22. 4DR29 Duplex Pilot Bore Sprocket
    £25.06 £20.88
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 29
    PCD: 117.23mm

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  23. 4DR30 Duplex Pilot Bore Sprocket
    £26.62 £22.18
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 30
    PCD: 121.28mm

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  24. 4DR31 Duplex Pilot Bore Sprocket
    £27.30 £22.75
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 31
    PCD: 125.32mm

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  25. 4DR32 Duplex Pilot Bore Sprocket
    £28.51 £23.76
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 32
    PCD: 129.36mm

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  26. 4DR33 Duplex Pilot Bore Sprocket
    £29.21 £24.34
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 33
    PCD: 133.4mm

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  27. 4DR34 Duplex Pilot Bore Sprocket
    £31.62 £26.35
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 34
    PCD: 137.45mm

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  28. 4DR35 Duplex Pilot Bore Sprocket
    £31.62 £26.35
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 35
    PCD: 141.49mm

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  29. 4DR36 Duplex Pilot Bore Sprocket
    £35.26 £29.38
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 36
    PCD: 145.53mm

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  30. 4DR37 Duplex Pilot Bore Sprocket
    £37.50 £31.25
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 37
    PCD: 149.57mm

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  31. 4DR38 Duplex Pilot Bore Sprocket
    £38.53 £32.11
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 38
    PCD: 153.62mm

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  32. 4DR39 Duplex Pilot Bore Sprocket
    £40.96 £34.13
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 39
    PCD: 157.66mm

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  33. 4DR40 Duplex Pilot Bore Sprocket
    £40.96 £34.13
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 40
    PCD: 161.7mm

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  34. 4DR45 Duplex Pilot Bore Sprocket
    £53.40 £44.50
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 45
    PCD: 181.91mm

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  35. 4DR57 Duplex Pilot Bore Sprocket
    £85.88 £71.57
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 57
    PCD: 230.42mm

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  36. 4DR76 Duplex Pilot Bore Sprocket
    £161.57 £134.64
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 76
    PCD: 307.23mm

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  37. 4DR95 Duplex Pilot Bore Sprocket
    £229.66 £191.38
    Pitch: 12.7mm (1/2") or 08B
    Number of Teeth: 95
    PCD: 384.04mm

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