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Imperial Timing Belts

Imperial timing belts (also known as inch pitch timing belts) feature moulded teeth spaced according to inch measurements rather than millimetres. These belts must be paired with matching imperial timing pulleys to ensure correct meshing and performance.

At ACORN®, we supply a comprehensive range of imperial timing belts in stock and available to buy online today, with fast UK and worldwide delivery.

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141-160 of 2878 products

141-160 of 2878 products

244-L-100, Gates, PowerGrip® Imperial Timing Belt - 9277-54039

Imperial, Rubber, Timing belt, EAN code: 5412571263930

Brand	Gates
Mfr Part No.	244-L-100

$16.86

Available to back order What does this mean?

This item is currently out of stock.

You may place your order now and we will dispatch it as soon as stock arrives.

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230-H-100, Optibelt, ZR Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	230-H-100

$22.10

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This item is currently out of stock.

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124-L-100, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt, EAN code: 4051817004626

Brand	ContiTech
Mfr Part No.	124-L-100

$8.60

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This item is currently out of stock.

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1250-H-075, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt, EAN code: 4051817003872

Brand	ContiTech
Mfr Part No.	1250-H-075

$35.34

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This item is currently out of stock.

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1250-H-200, Gates, PowerGrip® Imperial Timing Belt - 9257-44125

Imperial, Rubber, Timing belt, EAN code: 5412571225990

Brand	Gates
Mfr Part No.	1250-H-200

$128.26

In stock ( * cut from sleeve )

PHG 130-XL-037, SKF, Synchronous Imperial Timing Belt - PHG 130-XL-037

Imperial, Rubber, Timing belt, EAN code: 07316572595855

Brand	SKF
Mfr Part No.	PHG 130-XL-037

$1.57

Despatched in 1-2 days

135-L-100, Gates, PowerGrip® Imperial Timing Belt - 9277-40017

Imperial, Rubber, Timing belt, EAN code: 5412571233551

Brand	Gates
Mfr Part No.	135-L-100

$12.46

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This item is currently out of stock.

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PHG 1000-H-200, SKF, Synchronous Imperial Timing Belt - PHG 1000-H-200

Imperial, Rubber, Timing belt, EAN code: 07316572662564

Brand	SKF
Mfr Part No.	PHG 1000-H-200

$58.92

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This item is currently out of stock.

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PHG 315-L-075, SKF, Synchronous Imperial Timing Belt - PHG 315-L-075

Imperial, Rubber, Timing belt, EAN code: 07316572733509

Brand	SKF
Mfr Part No.	PHG 315-L-075

Request a price

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This item is currently out of stock.

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PHG 1700-H-150, SKF, Synchronous Imperial Timing Belt - PHG 1700-H-150

Imperial, Rubber, Timing belt, EAN code: 07316572594490

Brand	SKF
Mfr Part No.	PHG 1700-H-150

$75.15

Despatched in 1-2 days

PHG 360-H-075, SKF, Synchronous Imperial Timing Belt - PHG 360-H-075

Imperial, Rubber, Timing belt, EAN code: 07316572592984

Brand	SKF
Mfr Part No.	PHG 360-H-075

$9.23

Despatched in 1-2 days

580-H-100, Optibelt, ZR Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	580-H-100

$43.16

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This item is currently out of stock.

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420-H-300, Gates, PowerGrip® Imperial Timing Belt - 9257-45042

Imperial, Rubber, Timing belt, EAN code: 5412571226089

Brand	Gates
Mfr Part No.	420-H-300

$79.64

In stock ( * cut from sleeve )

427-L-075, Optibelt, ZR Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	427-L-075

$23.58

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This item is currently out of stock.

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530-H-200, Optibelt, ZR Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	530-H-200

$78.57

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This item is currently out of stock.

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540-H-075, Gates, PowerGrip® Imperial Timing Belt - 9257-41054

Imperial, Rubber, Timing belt, EAN code: 5412571225150

Brand	Gates
Mfr Part No.	540-H-075

$24.51

In stock ( * cut from sleeve )

PHG 540-H-100, SKF, Synchronous Imperial Timing Belt - PHG 540-H-100

Imperial, Rubber, Timing belt, EAN code: 07316572593479

Brand	SKF
Mfr Part No.	PHG 540-H-100

$15.91

Despatched in 1-2 days

PHG 540-H-150, SKF, Synchronous Imperial Timing Belt - PHG 540-H-150

Imperial, Rubber, Timing belt, EAN code: 07316572593486

Brand	SKF
Mfr Part No.	PHG 540-H-150

$23.86

Despatched in 1-2 days

PHG 540-H-200, SKF, Synchronous Imperial Timing Belt - PHG 540-H-200

Imperial, Rubber, Timing belt, EAN code: 07316572593493

Brand	SKF
Mfr Part No.	PHG 540-H-200

$31.84

Despatched in 1-2 days

540-H-200, Gates, PowerGrip® Imperial Timing Belt - 9257-44054

Imperial, Rubber, Timing belt, EAN code: 5412571225877

Brand	Gates
Mfr Part No.	540-H-200

$65.33

In stock ( * cut from sleeve )

Common imperial pitches include

MXL
XL
L
H
XH
XXH

Each pitch is designed for specific torque and load capacities, making correct selection essential.

Key Benefits

Positive drive with zero slippage
Precise shaft synchronisation
High efficiency power transmission
Reduced maintenance compared to chain drives
Smooth, low-noise operation
Long service life

Imperial synchronous belts are widely used where consistent positioning and repeatability are critical.

Available Sizes & Specifications

When selecting an imperial timing belt, key factors include:

Pitch type (e.g., XL, L, H)
Belt length (in inches)
Belt width (in inches)
Tooth profile
Construction material (neoprene, polyurethane)
Tensile reinforcement type

If you have an existing belt code, it typically includes pitch and length information for easy identification.

Imperial Timing Belts FAQs

Are imperial and metric timing belts interchangeable?

No. Imperial belts use inch-based pitch measurements, while metric belts use millimetres (e.g., 5M, 8M, 14M). They are not interchangeable, even if they appear similar in size.

How do I identify my imperial timing belt size?

You will need to confirm:

Belt pitch (e.g., XL, L, H)
Belt length (in inches)
Belt width (in inches)

Most belts have a printed code that includes this information. If the marking is worn, measuring tooth pitch and belt length can help determine the correct replacement.

What causes imperial timing belts to fail?

Common causes of failure include:

Incorrect belt tension
Pulley misalignment
Overloading
Contamination from oil or debris
Mixing metric and imperial components

Routine inspection and proper installation significantly extend belt life.

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