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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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21-40 of 358 products

21-40 of 358 products

PHG 1100-H-150, SKF, Synchronous Imperial Timing Belt - PHG 1100-H-150

Imperial, Rubber, Timing belt, EAN code: 07316572594360

Brand	SKF
Mfr Part No.	PHG 1100-H-150

$59.98

Despatched in 1-2 days

1100-H-150, Gates, PowerGrip® Imperial Timing Belt - 9257-43110

Imperial, Rubber, Timing belt, EAN code: 5412571225730

Brand	Gates
Mfr Part No.	1100-H-150

$91.88

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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1120-XH-300, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt, EAN code: 4051817008075

Brand	ContiTech
Mfr Part No.	1120-XH-300

$246.76

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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1120-XH-300, Gates, PowerGrip® Imperial Timing Belt - 9257-52112

Imperial, Rubber, Timing belt, EAN code: 5412571226461

Brand	Gates
Mfr Part No.	1120-XH-300

$272.04

In stock ( * cut from sleeve )

1120-XH-300, Optibelt, ZR Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	1120-XH-300

$422.32

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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390-H-300, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt, EAN code: 4051817002769

Brand	ContiTech
Mfr Part No.	390-H-300

$50.87

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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330-H-150, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt, EAN code: 4051817002547

Brand	ContiTech
Mfr Part No.	330-H-150

$24.05

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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1000-H-150, Gates, PowerGrip® Imperial Timing Belt - 9257-43100

Imperial, Rubber, Timing belt, EAN code: 5412571225723

Brand	Gates
Mfr Part No.	1000-H-150

$86.07

In stock ( * cut from sleeve )

1000-H-300, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt, EAN code: 4051817003667

Brand	ContiTech
Mfr Part No.	1000-H-300

$114.50

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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255-H-150, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt, EAN code: 4051817002394

Brand	ContiTech
Mfr Part No.	255-H-150

$19.92

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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PHG 1600-H-150, SKF, Synchronous Imperial Timing Belt - PHG 1600-H-150

Imperial, Rubber, Timing belt, EAN code: 07316572731918

Brand	SKF
Mfr Part No.	PHG 1600-H-150

$87.33

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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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

$92.90

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

$29.51

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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PHG 450-H-150, SKF, Synchronous Imperial Timing Belt - PHG 450-H-150

Imperial, Rubber, Timing belt, EAN code: 07316572593264

Brand	SKF
Mfr Part No.	PHG 450-H-150

$24.68

Despatched in 1-2 days

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

$83.77

In stock ( * cut from sleeve )

510-H-150, Gates, PowerGrip® Imperial Timing Belt - 9257-43051

Imperial, Rubber, Timing belt, EAN code: 5412571225624

Brand	Gates
Mfr Part No.	510-H-150

$48.64

In stock ( * cut from sleeve )

PHG 630-H-150, SKF, Synchronous Imperial Timing Belt - PHG 630-H-150

Imperial, Rubber, Timing belt, EAN code: 07316572593684

Brand	SKF
Mfr Part No.	PHG 630-H-150

$34.39

Despatched in 1-2 days

630-H-300, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt, EAN code: 4051817003162

Brand	ContiTech
Mfr Part No.	630-H-300

$74.91

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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700-XH-300, Gates, PowerGrip® Imperial Timing Belt - 9257-52070

Imperial, Rubber, Timing belt, EAN code: 5412571226423

Brand	Gates
Mfr Part No.	700-XH-300

$192.46

In stock ( * cut from sleeve )

1400-H-300, Gates, PowerGrip® Imperial Timing Belt - 9257-45140

Imperial, Rubber, Timing belt, EAN code: 5412571226256

Brand	Gates
Mfr Part No.	1400-H-300

$223.35

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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