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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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101-120 of 310 products

101-120 of 310 products

124-XL-037, Gates, PowerGrip® Imperial Timing Belt - 9257-90180

Imperial, Rubber, Timing belt, EAN code: 5412571227093

Brand	Gates
Mfr Part No.	124-XL-037

$3.85

In stock ( * cut from sleeve )

124-XL-037, Optibelt, ZR Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	124-XL-037

$4.91

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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126-XL-037, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt, EAN code: 4051817009003

Brand	ContiTech
Mfr Part No.	126-XL-037

$2.77

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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126-XL-037, Gates, PowerGrip® Imperial Timing Belt - 9277-52176

Imperial, Rubber, Timing belt, EAN code: 5412571253641

Brand	Gates
Mfr Part No.	126-XL-037

$3.85

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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126-XL-037, Optibelt, ZR Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	126-XL-037

$4.91

Available to back order What does this mean?

This item is not currently available from our stocks.

Despatch date information is on request.

Ask about despatch

128-XL-037, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt, EAN code: 4051817009034

Brand	ContiTech
Mfr Part No.	128-XL-037

$2.77

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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128-XL-037, Gates, PowerGrip® Imperial Timing Belt - 9257-90059

Imperial, Rubber, Timing belt, EAN code: 5412571226775

Brand	Gates
Mfr Part No.	128-XL-037

$3.85

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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128-XL-037, Optibelt, ZR Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	128-XL-037

$4.91

Available to back order What does this mean?

This item is not currently available from our stocks.

Despatch date information is on request.

Ask about despatch

360-XL-037, Optibelt, ZR Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	360-XL-037

$7.85

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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Add to basket

362-XL-037, Gates, PowerGrip® Imperial Timing Belt - 9277-40878

Imperial, Rubber, Timing belt, EAN code: 5412571234565

Brand	Gates
Mfr Part No.	362-XL-037

$6.93

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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Add to basket

372-XL-037, Gates, PowerGrip® Imperial Timing Belt - 9277-52827

Imperial, Rubber, Timing belt, EAN code: 5412571257427

Brand	Gates
Mfr Part No.	372-XL-037

$7.22

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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Add to basket

380-XL-037, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt, EAN code: 4051817010955

Brand	ContiTech
Mfr Part No.	380-XL-037

$4.70

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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380-XL-037, Gates, PowerGrip® Imperial Timing Belt - 9277-52836

Imperial, Rubber, Timing belt, EAN code: 5412571257502

Brand	Gates
Mfr Part No.	380-XL-037

$7.34

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This item is not currently available from our stocks.

Despatch date information is on request.

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382-XL-037, Gates, PowerGrip® Imperial Timing Belt - 9277-40882

Imperial, Rubber, Timing belt, EAN code: 5412571234572

Brand	Gates
Mfr Part No.	382-XL-037

$7.37

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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382-XL-037, Optibelt, ZR Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	382-XL-037

$8.20

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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300-XL-037, Gates, PowerGrip® Imperial Timing Belt - 9257-90128

Imperial, Rubber, Timing belt, EAN code: 5412571226881

Brand	Gates
Mfr Part No.	300-XL-037

$6.23

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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300-XL-037, Optibelt, ZR Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	300-XL-037

$7.29

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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330-XL-037, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt, EAN code: 4051817010740

Brand	ContiTech
Mfr Part No.	330-XL-037

$4.35

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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330-XL-037, Optibelt, ZR Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	330-XL-037

$7.40

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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322-XL-037, Gates, PowerGrip® Imperial Timing Belt - 9277-40842

Imperial, Rubber, Timing belt, EAN code: 5412571234381

Brand	Gates
Mfr Part No.	322-XL-037

$6.52

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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