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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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321-340 of 2878 products

321-340 of 2878 products

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

80-XL-025, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt, EAN code: 4051817008389

Brand	ContiTech
Mfr Part No.	80-XL-025

$1.92

In stock

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

Imperial, Rubber, Timing belt, EAN code: 4051817003476

Brand	ContiTech
Mfr Part No.	800-H-075

$25.04

In stock

984-MXL-019, Optibelt, ZR Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	984-MXL-019

$3.19

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This item is currently out of stock.

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984-MXL-025, Gates, PowerGrip® Imperial Timing Belt - 9277-41986

Imperial, Rubber, Timing belt, EAN code: 5412571239300

Brand	Gates
Mfr Part No.	984-MXL-025

$4.17

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This item is currently out of stock.

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984-MXL-025, Optibelt, ZR Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	984-MXL-025

$3.42

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This item is currently out of stock.

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90-XL-025, Gates, PowerGrip® Imperial Timing Belt - 9257-21009

Imperial, Rubber, Timing belt, EAN code: 5412571224061

Brand	Gates
Mfr Part No.	90-XL-025

$2.38

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90-XL-025, Optibelt, ZR Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	90-XL-025

$3.42

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This item is currently out of stock.

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PHG 90-XL-031, SKF, Synchronous Imperial Timing Belt - PHG 90-XL-031

Imperial, Rubber, Timing belt, EAN code: 07316572595602

Brand	SKF
Mfr Part No.	PHG 90-XL-031

$1.27

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90-XL-031, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt, EAN code: 4051817008488

Brand	ContiTech
Mfr Part No.	90-XL-031

$2.24

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90-XL-031, Gates, PowerGrip® Imperial Timing Belt - 9277-51985

Imperial, Rubber, Timing belt, EAN code: 5412571252644

Brand	Gates
Mfr Part No.	90-XL-031

$2.98

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90-XL-031, Optibelt, ZR Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	90-XL-031

$3.99

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This item is currently out of stock.

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PHG 90-XL-037, SKF, Synchronous Imperial Timing Belt - PHG 90-XL-037

Imperial, Rubber, Timing belt, EAN code: 07316572595619

Brand	SKF
Mfr Part No.	PHG 90-XL-037

$1.32

Despatched in 1-2 days

90-XL-037, Gates, PowerGrip® Imperial Timing Belt - 9257-22009

Imperial, Rubber, Timing belt, EAN code: 5412571224276

Brand	Gates
Mfr Part No.	90-XL-037

$3.57

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

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	90-XL-037

$4.54

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This item is currently out of stock.

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900-H-050, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	ContiTech
Mfr Part No.	900-H-050

Request a price

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PHG 900-H-075, SKF, Synchronous Imperial Timing Belt - PHG 900-H-075

Imperial, Rubber, Timing belt, EAN code: 07316572594209

Brand	SKF
Mfr Part No.	PHG 900-H-075

$24.68

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

Imperial, Rubber, Timing belt, EAN code: 4051817003575

Brand	ContiTech
Mfr Part No.	900-H-075

$27.73

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900-H-075, Gates, PowerGrip® Imperial Timing Belt - 9277-51611

Imperial, Rubber, Timing belt, EAN code: 5412571250534

Brand	Gates
Mfr Part No.	900-H-075

$38.97

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This item is currently out of stock.

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900-H-075, Optibelt, ZR Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	900-H-075

$47.25

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This item is currently out of stock.

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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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