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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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41-60 of 370 products

41-60 of 370 products

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

Imperial, Rubber, Timing belt, EAN code: 4051817002790

Brand	ContiTech
Mfr Part No.	420-H-150

$28.96

In stock

420-H-200, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt, EAN code: 4051817002806

Brand	ContiTech
Mfr Part No.	420-H-200

$37.24

In stock

660-H-200, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt, EAN code: 4051817003209

Brand	ContiTech
Mfr Part No.	660-H-200

$54.23

In stock

750-H-200, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt, EAN code: 4051817003452

Brand	ContiTech
Mfr Part No.	750-H-200

$59.27

In stock

390-H-150, Protorque, Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	Protorque
Mfr Part No.	390-H-150

$30.31

In stock

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

Imperial, Rubber, Timing belt, EAN code: 4051817003094

Brand	ContiTech
Mfr Part No.	600-H-150

$37.34

In stock

600-H-200, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt, EAN code: 4051817003100

Brand	ContiTech
Mfr Part No.	600-H-200

$49.54

In stock

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

Imperial, Rubber, Timing belt, EAN code: 4051817003292

Brand	ContiTech
Mfr Part No.	700-H-150

$42.05

In stock

PHG 1250-H-150, SKF, Synchronous Imperial Timing Belt - PHG 1250-H-150

Imperial, Rubber, Timing belt, EAN code: 07316572594414

Brand	SKF
Mfr Part No.	PHG 1250-H-150

$55.19

Despatched in 1-2 days

1250-H-150, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt, EAN code: 4051817003896

Brand	ContiTech
Mfr Part No.	1250-H-150

$69.09

Available to back order What does this mean?

This item is not currently available from our stocks.

Despatch date information is on request.

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1250-H-150, Gates, PowerGrip® Imperial Timing Belt - 9257-43125

Imperial, Rubber, Timing belt, EAN code: 5412571225747

Brand	Gates
Mfr Part No.	1250-H-150

$96.20

In stock ( * cut from sleeve )

1250-H-200, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt, EAN code: 4051817003902

Brand	ContiTech
Mfr Part No.	1250-H-200

$92.13

Available to back order What does this mean?

This item is not currently available from our stocks.

Despatch date information is on request.

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1250-H-200, Optibelt, ZR Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	1250-H-200

$158.77

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This item is not currently available from our stocks.

Despatch date information is on request.

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1260-XH-200, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt, EAN code: 4051817008105

Brand	ContiTech
Mfr Part No.	1260-XH-200

$178.58

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This item is not currently available from our stocks.

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1260-XH-200, Gates, PowerGrip® Imperial Timing Belt - 9257-51126

Imperial, Rubber, Timing belt, EAN code: 5412571226355

Brand	Gates
Mfr Part No.	1260-XH-200

$191.84

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This item is not currently available from our stocks.

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1260-XH-200, Optibelt, ZR Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	1260-XH-200

$307.76

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This item is not currently available from our stocks.

Despatch date information is on request.

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1325-H-150, Gates, PowerGrip® Imperial Timing Belt - 9277-54557

Imperial, Rubber, Timing belt, EAN code: 5412571266719

Brand	Gates
Mfr Part No.	1325-H-150

$101.71

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This item is not currently available from our stocks.

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1325-H-200, Gates, PowerGrip® Imperial Timing Belt - 9257-90240

Imperial, Rubber, Timing belt, EAN code: 5412571227482

Brand	Gates
Mfr Part No.	1325-H-200

$135.64

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This item is not currently available from our stocks.

Despatch date information is on request.

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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

1700-H-150, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt, EAN code: 4051817003995

Brand	ContiTech
Mfr Part No.	1700-H-150

$94.93

Available to back order What does this mean?

This item is not currently available from our stocks.

Despatch date information is on request.

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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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