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Imperial Timing Belt Pulleys – Precision Synchronous Drive Components

At Bolton Engineering Products Ltd we stock imperial timing belt pulleys in high grade steel for accurate and efficient synchronous power-transmission. Designed to correspond with imperial pitch timing belts, these pulleys provide accurate speed ratios and resistance to wear on industrial and automotive applications.

If you are seeking dependable imperial timing products in the UK, we have the reliable stock at competitive prices available for prompt shipping.

How to Correctly Measure an Imperial Timing Pulley?

Use the following method to determine the dimensions of an imperial timing pulley:

  • Locate the pitch (ex: XL 1/5, L 3/8", H 1/2")
  • Count the number of teeth
  • Measure the outside diameter (OD)
  • Ensure Keyway and Bore Size.
  • Check the width of pulley to fit with the belt

Proper measurement will ensure that the belt you purchase will fit your equipment and not burn up too quickly or be too lose.

What Are the Best Imperial Timing Belt Pulleys for Automotive Use?

For automotive and performance systems, the best pulleys offer:

  • Accurate tooth profile for positive engagement
  • High-strength aluminium or steel construction
  • Corrosion resistance
  • Smooth, low-noise operation
  • Precision bore tolerances

Imperial timing belt pulleys are commonly used in camshaft drives, supercharger systems, and auxiliary belt systems where timing accuracy is critical.

What Are the Standard Imperial Timing Belt Pulley Sizes?

Common imperial timing pulley profiles include:

Profile

Pitch

Common Applications

XL

1/5" (0.200")

Light-duty automation

L

3/8"

Industrial machinery

H

1/2"

Heavy-duty drives

XH

7/8"

High torque systems

Each pulley must match the exact imperial timing belt profile to ensure correct meshing.

Key Benefits of Imperial Timing Belt Pulleys

  • Slip-free synchronous drive
  • Accurate speed control
  • Quiet, low-vibration operation
  • Suitable for industrial & automotive use
  • Easy installation and maintenance
  • Available in aluminium and steel

Typical Applications

  • Industrial machinery
  • Automotive timing systems
  • Automation & robotics
  • Conveyors and packaging equipment
  • Motion control systems

Why Buy from BEP Ltd?

  • Trusted UK engineering supplier
  • Wide range of imperial timing belt pulleys
  • Competitive trade pricing
  • Fast UK dispatch
  • Expert technical guidance

Need help selecting the correct imperial timing pulley?

Contact our technical team today for expert advice and a fast quotation.

FAQs – Imperial Timing Belt Pulleys

Where can I buy imperial timing belt pulleys online UK?

You can purchase high-quality imperial timing belt pulleys online from Bolton Engineering Products Ltd, a trusted UK supplier of industrial power transmission components.

Top UK suppliers for industrial imperial timing components?

BEP Ltd is a recognised UK supplier offering precision-machined imperial timing pulleys and belts, with reliable stock and expert technical support.

Do imperial timing pulleys require lubrication?

No. Timing pulleys operate with toothed belts and do not require lubrication.

Can imperial pulleys be used with metric belts?

No. Imperial pulleys must be paired with matching imperial pitch timing belts.

Imperial Timing Belt Pulleys

Imperial Timing Belt Pulleys – Precision Synchronous Drive Components

At Bolton Engineering Products Ltd we stock imperial timing belt pulleys in high grade steel for accurate and efficient synchronous power-transmission. Designed to correspond with imperial pitch timing belts, these pulleys provide accurate speed ratios and resistance to wear on industrial and automotive applications.

If you are seeking dependable imperial timing products in the UK, we have the reliable stock at competitive prices available for prompt shipping.

How to Correctly Measure an Imperial Timing Pulley?

Use the following method to determine the dimensions of an imperial timing pulley:

  • Locate the pitch (ex: XL 1/5, L 3/8", H 1/2")
  • Count the number of teeth
  • Measure the outside diameter (OD)
  • Ensure Keyway and Bore Size.
  • Check the width of pulley to fit with the belt

Proper measurement will ensure that the belt you purchase will fit your equipment and not burn up too quickly or be too lose.

What Are the Best Imperial Timing Belt Pulleys for Automotive Use?

For automotive and performance systems, the best pulleys offer:

  • Accurate tooth profile for positive engagement
  • High-strength aluminium or steel construction
  • Corrosion resistance
  • Smooth, low-noise operation
  • Precision bore tolerances

Imperial timing belt pulleys are commonly used in camshaft drives, supercharger systems, and auxiliary belt systems where timing accuracy is critical.

What Are the Standard Imperial Timing Belt Pulley Sizes?

Common imperial timing pulley profiles include:

Profile

Pitch

Common Applications

XL

1/5" (0.200")

Light-duty automation

L

3/8"

Industrial machinery

H

1/2"

Heavy-duty drives

XH

7/8"

High torque systems

Each pulley must match the exact imperial timing belt profile to ensure correct meshing.

Key Benefits of Imperial Timing Belt Pulleys

  • Slip-free synchronous drive
  • Accurate speed control
  • Quiet, low-vibration operation
  • Suitable for industrial & automotive use
  • Easy installation and maintenance
  • Available in aluminium and steel

Typical Applications

  • Industrial machinery
  • Automotive timing systems
  • Automation & robotics
  • Conveyors and packaging equipment
  • Motion control systems

Why Buy from BEP Ltd?

  • Trusted UK engineering supplier
  • Wide range of imperial timing belt pulleys
  • Competitive trade pricing
  • Fast UK dispatch
  • Expert technical guidance

Need help selecting the correct imperial timing pulley?

Contact our technical team today for expert advice and a fast quotation.

FAQs – Imperial Timing Belt Pulleys

Where can I buy imperial timing belt pulleys online UK?

You can purchase high-quality imperial timing belt pulleys online from Bolton Engineering Products Ltd, a trusted UK supplier of industrial power transmission components.

Top UK suppliers for industrial imperial timing components?

BEP Ltd is a recognised UK supplier offering precision-machined imperial timing pulleys and belts, with reliable stock and expert technical support.

Do imperial timing pulleys require lubrication?

No. Timing pulleys operate with toothed belts and do not require lubrication.

Can imperial pulleys be used with metric belts?

No. Imperial pulleys must be paired with matching imperial pitch timing belts.

17-H-150-Pilot-Bore-(1/2")-Imperial-Timing-Belt-Pulley

17-H-150 Pilot Bore (1/2") Imperial Timing Belt Pulley / Sprocket - 17 Tooth to Suit Belt 1-1/2" Wide

£10.60 - £10.60
£10.60
£10.60 - £10.60
£10.60

17H 1/2" Pilot Bore Imperial Synchronous Timing Belt Pulley Boss Dia (mm) 45 Dia Over Flanges (mm) 75 Outside Dia (mm) 68.72 Teeth 17...

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£10.60 - £10.60
£10.60
£10.60 - £10.60
£10.60
18-H-100-Pilot-Bore-(1/2")-Imperial-Timing-Belt-Pulley

18-H-100 Pilot Bore (1/2") Imperial Timing Belt Pulley / Sprocket - 18 Tooth to Suit Belt 1" Wide

£9.42 - £9.42
£9.42
£9.42 - £9.42
£9.42

18H 1/2" Pilot Bore Imperial Synchronous Timing Belt Pulley Boss Dia (mm) 55 Dia Over Flanges (mm) 79 Outside Dia (mm) 72.77 Teeth 18...

View full details
£9.42 - £9.42
£9.42
£9.42 - £9.42
£9.42
32-H-200-Pilot-Bore-(1/2")-Imperial-Timing-Belt-Pulley

32-H-200 Pilot Bore (1/2") Imperial Timing Belt Pulley / Sprocket - 32 Tooth to Suit Belt 2" Wide

£43.72 - £43.72
£43.72
£43.72 - £43.72
£43.72

32H 1/2" Pilot Bore Imperial Synchronous Timing Belt Pulley Boss Dia (mm) 80 Dia Over Flanges (mm) 135 Outside Dia (mm) 129.36 Teeth ...

View full details
£43.72 - £43.72
£43.72
£43.72 - £43.72
£43.72
11-XL-037-Pilot-Bore-(1/5")-Imperial-Timing-Belt-Pulley

11-XL-037 Pilot Bore (1/5") Imperial Timing Belt Pulley / Sprocket - 11 Tooth to Suit Belt 3/8" Wide

£1.72 - £1.72
£1.72
£1.72 - £1.72
£1.72

11-XL-037 1/5" Pilot Bore Imperial Synchronous Timing Belt Pulley Boss Dia (mm) 9.5 Dia Over Flanges (mm) 23 Outside Dia (mm) 17.79 Te...

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£1.72 - £1.72
£1.72
£1.72 - £1.72
£1.72
17-XL-037-Pilot-Bore-(1/5")-Imperial-Timing-Belt-Pulley

17-XL-037 Pilot Bore (1/5") Imperial Timing Belt Pulley / Sprocket - 17 Tooth to Suit Belt 3/8" Wide

£2.19 - £2.19
£2.19
£2.19 - £2.19
£2.19

17-XL-037 1/5" Pilot Bore Imperial Synchronous Timing Belt Pulley Boss Dia (mm) 20 Dia Over Flanges (mm) 32 Outside Dia (mm) 27.49 Tee...

View full details
£2.19 - £2.19
£2.19
£2.19 - £2.19
£2.19
22-XL-037-Pilot-Bore-(1/5")-Imperial-Timing-Belt-Pulley

22-XL-037 Pilot Bore (1/5") Imperial Timing Belt Pulley / Sprocket - 22 Tooth to Suit Belt 3/8" Wide

£2.81 - £2.81
£2.81
£2.81 - £2.81
£2.81

22-XL-037 1/5" Pilot Bore Imperial Synchronous Timing Belt Pulley Boss Dia (mm) 25 Dia Over Flanges (mm) 42 Outside Dia (mm) 35.57 Tee...

View full details
£2.81 - £2.81
£2.81
£2.81 - £2.81
£2.81
26-XL-037-Pilot-Bore-(1/5")-Imperial-Timing-Belt-Pulley

26-XL-037 Pilot Bore (1/5") Imperial Timing Belt Pulley / Sprocket - 26 Tooth to Suit Belt 3/8" Wide

£3.26 - £3.26
£3.26
£3.26 - £3.26
£3.26

26-XL-037 1/5" Pilot Bore Imperial Synchronous Timing Belt Pulley Boss Dia (mm) 30 Dia Over Flanges (mm) 48 Outside Dia (mm) 42.04 Tee...

View full details
£3.26 - £3.26
£3.26
£3.26 - £3.26
£3.26
30-XL-037-Pilot-Bore-(1/5")-Imperial-Timing-Belt-Pulley

30-XL-037 Pilot Bore (1/5") Imperial Timing Belt Pulley / Sprocket - 30 Tooth to Suit Belt 3/8" Wide

£3.65 - £3.65
£3.65
£3.65 - £3.65
£3.65

30-XL-037 1/5" Pilot Bore Imperial Synchronous Timing Belt Pulley Boss Dia (mm) 38 Dia Over Flanges (mm) 54 Outside Dia (mm) 48.51 Tee...

View full details
£3.65 - £3.65
£3.65
£3.65 - £3.65
£3.65
12-L-100-Pilot-Bore-(3/8")-Imperial-Timing-Belt-Pulley

12-L-100 Pilot Bore (3/8") Imperial Timing Belt Pulley / Sprocket - 12 Tooth to Suit Belt 1" Wide

£3.46 - £3.46
£3.46
£3.46 - £3.46
£3.46

12L 3/8" Pilot Bore Imperial Synchronous Timing Belt Pulley Boss Dia (mm) 24 Dia Over Flanges (mm) 43 Outside Dia (mm) 36.38 Teeth 12...

View full details
£3.46 - £3.46
£3.46
£3.46 - £3.46
£3.46
18H100-1210-Taper-Lock-(1/2")-Imperial-Timing-Belt-Pulley-18-Tooth-x-1"-Wide

18-H-100-1210 Taper Lock (1/2") Imperial Timing Belt Pulley / Sprocket - 18 Tooth to Suit Belt 1" Wide

£7.73 - £7.73
£7.73
£7.73 - £7.73
£7.73

18H100-1210 Taper Lock (1/2") Imperial Timing Belt Pulley - 18 Tooth x 1" Wide

£7.73 - £7.73
£7.73
£7.73 - £7.73
£7.73
40-H-100-Pilot-Bore-(1/2")-Imperial-Timing-Belt-Pulley

40-H-100 Pilot Bore (1/2") Imperial Timing Belt Pulley / Sprocket - 40 Tooth to Suit Belt 1" Wide

£40.47 - £40.47
£40.47
£40.47 - £40.47
£40.47

40H 1/2" Pilot Bore Imperial Synchronous Timing Belt Pulley Boss Dia (mm) 80 Dia Over Flanges (mm) 168 Outside Dia (mm) 161.7 Teeth 4...

View full details
£40.47 - £40.47
£40.47
£40.47 - £40.47
£40.47
12-XL-037-Pilot-Bore-(1/5")-Imperial-Timing-Belt-Pulley

12-XL-037 Pilot Bore (1/5") Imperial Timing Belt Pulley / Sprocket - 12 Tooth to Suit Belt 3/8" Wide

£1.85 - £1.85
£1.85
£1.85 - £1.85
£1.85

12-XL-037 1/5" Pilot Bore Imperial Synchronous Timing Belt Pulley Boss Dia (mm) 10 Dia Over Flanges (mm) 25 Outside Dia (mm) 19.4 Teet...

View full details
£1.85 - £1.85
£1.85
£1.85 - £1.85
£1.85
14-XL-037-Pilot-Bore-(1/5")-Imperial-Timing-Belt-Pulley

14-XL-037 Pilot Bore (1/5") Imperial Timing Belt Pulley / Sprocket - 14 Tooth to Suit Belt 3/8" Wide

£2.01 - £2.01
£2.01
£2.01 - £2.01
£2.01

14-XL-037 1/5" Pilot Bore Imperial Synchronous Timing Belt Pulley Boss Dia (mm) 15 Dia Over Flanges (mm) 28 Outside Dia (mm) 22.64 Tee...

View full details
£2.01 - £2.01
£2.01
£2.01 - £2.01
£2.01
16-XL-037-Pilot-Bore-(1/5")-Imperial-Timing-Belt-Pulley

16-XL-037 Pilot Bore (1/5") Imperial Timing Belt Pulley / Sprocket - 16 Tooth to Suit Belt 3/8" Wide

£2.12 - £2.12
£2.12
£2.12 - £2.12
£2.12

16-XL-037 1/5" Pilot Bore Imperial Synchronous Timing Belt Pulley Boss Dia (mm) 15 Dia Over Flanges (mm) 32 Outside Dia (mm) 25.87 Tee...

View full details
£2.12 - £2.12
£2.12
£2.12 - £2.12
£2.12
20-XL-037-Pilot-Bore-(1/5")-Imperial-Timing-Belt-Pulley

20-XL-037 Pilot Bore (1/5") Imperial Timing Belt Pulley / Sprocket - 20 Tooth to Suit Belt 3/8" Wide

£2.58 - £2.58
£2.58
£2.58 - £2.58
£2.58

20-XL-037 1/5" Pilot Bore Imperial Synchronous Timing Belt Pulley Boss Dia (mm) 24 Dia Over Flanges (mm) 38 Outside Dia (mm) 33.34 Tee...

View full details
£2.58 - £2.58
£2.58
£2.58 - £2.58
£2.58
72-XL-037-Pilot-Bore-(1/5")-Imperial-Timing-Belt-Pulley

72-XL-037 Pilot Bore (1/5") Imperial Timing Belt Pulley / Sprocket - 72 Tooth to Suit Belt 3/8" Wide

£13.55 - £13.55
£13.55
£13.55 - £13.55
£13.55

72-XL-037 1/5" Pilot Bore Imperial Synchronous Timing Belt Pulley Boss Dia (mm) 45 Dia Over Flanges (mm) - Outside Dia (mm) 116.42 Tee...

View full details
£13.55 - £13.55
£13.55
£13.55 - £13.55
£13.55
18L100-1108-Taper-Lock-(3/8")-Imperial-Timing-Belt-Pulley-18-Tooth-x-1"-Wide

18-L-100-1108 Taper Lock (3/8") Imperial Timing Belt Pulley / Sprocket - 18 Tooth to Suit Belt 1" Wide

£5.48 - £5.48
£5.48
£5.48 - £5.48
£5.48

18L100-1108 Taper Lock (3/8") Imperial Timing Belt Pulley - 18 Tooth x 1" Wide

£5.48 - £5.48
£5.48
£5.48 - £5.48
£5.48
10-L-050-Pilot-Bore-(3/8")-Imperial-Timing-Belt-Pulley

10-L-050 Pilot Bore (3/8") Imperial Timing Belt Pulley / Sprocket - 10 Tooth to Suit Belt 1/2" Wide

£3.12 - £3.12
£3.12
£3.12 - £3.12
£3.12

10L 3/8" Pilot Bore Imperial Synchronous Timing Belt Pulley Boss Dia (mm) 20 Dia Over Flanges (mm) 37 Outside Dia (mm) 30.32 Teeth 10...

View full details
£3.12 - £3.12
£3.12
£3.12 - £3.12
£3.12
25-L-100-Pilot-Bore-(3/8")-Imperial-Timing-Belt-Pulley

25-L-100 Pilot Bore (3/8") Imperial Timing Belt Pulley / Sprocket - 25 Tooth to Suit Belt 1" Wide

£10.99 - £10.99
£10.99
£10.99 - £10.99
£10.99

25L 3/8" Pilot Bore Imperial Synchronous Timing Belt Pulley Boss Dia (mm) 58 Dia Over Flanges (mm) 83 Outside Dia (mm) 75.8 Teeth 25 ...

View full details
£10.99 - £10.99
£10.99
£10.99 - £10.99
£10.99
30-L-050-Pilot-Bore-(3/8")-Imperial-Timing-Belt-Pulley

30-L-050 Pilot Bore (3/8") Imperial Timing Belt Pulley / Sprocket - 30 Tooth to Suit Belt 1/2" Wide

£11.43 - £11.43
£11.43
£11.43 - £11.43
£11.43

30L 3/8" Pilot Bore Imperial Synchronous Timing Belt Pulley Boss Dia (mm) 70 Dia Over Flanges (mm) 97 Outside Dia (mm) 90.96 Teeth 30...

View full details
£11.43 - £11.43
£11.43
£11.43 - £11.43
£11.43
60-L-050-Pilot-Bore-(3/8")-Imperial-Timing-Belt-Pulley

60-L-050 Pilot Bore (3/8") Imperial Timing Belt Pulley / Sprocket - 60 Tooth to Suit Belt 1/2" Wide

£32.07 - £32.07
£32.07
£32.07 - £32.07
£32.07

60L 3/8" Pilot Bore Imperial Synchronous Timing Belt Pulley Boss Dia (mm) 75 Dia Over Flanges (mm) - Outside Dia (mm) 181.91 Teeth 60...

View full details
£32.07 - £32.07
£32.07
£32.07 - £32.07
£32.07
20-H-150-Pilot-Bore-(1/2")-Imperial-Timing-Belt-Pulley

20-H-150 Pilot Bore (1/2") Imperial Timing Belt Pulley / Sprocket - 20 Tooth to Suit Belt 1-1/2" Wide

£14.55 - £14.55
£14.55
£14.55 - £14.55
£14.55

20H 1/2" Pilot Bore Imperial Synchronous Timing Belt Pulley Boss Dia (mm) 62 Dia Over Flanges (mm) 87 Outside Dia (mm) 80.85 Teeth 20...

View full details
£14.55 - £14.55
£14.55
£14.55 - £14.55
£14.55
32-H-100-Pilot-Bore-(1/2")-Imperial-Timing-Belt-Pulley

32-H-100 Pilot Bore (1/2") Imperial Timing Belt Pulley / Sprocket - 32 Tooth to Suit Belt 1" Wide

£28.89 - £28.89
£28.89
£28.89 - £28.89
£28.89

32H 1/2" Pilot Bore Imperial Synchronous Timing Belt Pulley Boss Dia (mm) 80 Dia Over Flanges (mm) 135 Outside Dia (mm) 129.36 Teeth ...

View full details
£28.89 - £28.89
£28.89
£28.89 - £28.89
£28.89
40-H-150-Pilot-Bore-(1/2")-Imperial-Timing-Belt-Pulley

40-H-150 Pilot Bore (1/2") Imperial Timing Belt Pulley / Sprocket - 40 Tooth to Suit Belt 1-1/2" Wide

£50.44 - £50.44
£50.44
£50.44 - £50.44
£50.44

40H 1/2" Pilot Bore Imperial Synchronous Timing Belt Pulley Boss Dia (mm) 80 Dia Over Flanges (mm) 168 Outside Dia (mm) 161.7 Teeth 4...

View full details
£50.44 - £50.44
£50.44
£50.44 - £50.44
£50.44

Hi. Need any help?