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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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1961-1980 of 2878 products

1961-1980 of 2878 products

864-MXL-012, Optibelt, ZR Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	864-MXL-012

$2.62

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

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	864-MXL-019

$3.08

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

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	864-MXL-025

$3.30

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86-XL-025, Gates, PowerGrip® Imperial Timing Belt - 9277-42599

Imperial, Rubber, Timing belt, EAN code: 5414465087684

Brand	Gates
Mfr Part No.	86-XL-025

$2.35

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

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	86-XL-025

$3.42

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86-XL-031, Gates, PowerGrip® Imperial Timing Belt - 9277-41763

Imperial, Rubber, Timing belt, EAN code: 5412571238372

Brand	Gates
Mfr Part No.	86-XL-031

$2.95

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

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	86-XL-031

$3.99

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86-XL-037, Gates, PowerGrip® Imperial Timing Belt - 9277-41764

Imperial, Rubber, Timing belt, EAN code: 5412571238389

Brand	Gates
Mfr Part No.	86-XL-037

$3.51

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

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	86-XL-037

$4.54

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872-MXL-012, Gates, PowerGrip® Imperial Timing Belt - 9277-41219

Imperial, Rubber, Timing belt, EAN code: 5412571236040

Brand	Gates
Mfr Part No.	872-MXL-012

$1.91

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872-MXL-019, Gates, PowerGrip® Imperial Timing Belt - 9277-42526

Imperial, Rubber, Timing belt, EAN code: 5414465077623

Brand	Gates
Mfr Part No.	872-MXL-019

$3.04

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872-MXL-025, Gates, PowerGrip® Imperial Timing Belt - 9277-41221

Imperial, Rubber, Timing belt, EAN code: 5412571236057

Brand	Gates
Mfr Part No.	872-MXL-025

$3.99

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PHG 800-H-075, SKF, Synchronous Imperial Timing Belt - PHG 800-H-075

Imperial, Rubber, Timing belt, EAN code: 07316572594056

Brand	SKF
Mfr Part No.	PHG 800-H-075

$22.02

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800-H-075, Gates, PowerGrip® Imperial Timing Belt - 9257-41080

Imperial, Rubber, Timing belt, EAN code: 5412571225211

Brand	Gates
Mfr Part No.	800-H-075

$34.92

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

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	800-H-075

$42.60

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800-H-100, Gates, PowerGrip® Imperial Timing Belt - 9257-42080

Imperial, Rubber, Timing belt, EAN code: 5412571225457

Brand	Gates
Mfr Part No.	800-H-100

$46.53

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PHG 800-H-150, SKF, Synchronous Imperial Timing Belt - PHG 800-H-150

Imperial, Rubber, Timing belt, EAN code: 07316572594070

Brand	SKF
Mfr Part No.	PHG 800-H-150

$43.61

Despatched in 1-2 days

800-H-150, Gates, PowerGrip® Imperial Timing Belt - 9257-43080

Imperial, Rubber, Timing belt, EAN code: 5412571225693

Brand	Gates
Mfr Part No.	800-H-150

$69.80

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800-H-150, Optibelt, ZR Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	800-H-150

$80.41

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This item is currently out of stock.

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PHG 800-H-200, SKF, Synchronous Imperial Timing Belt - PHG 800-H-200

Imperial, Rubber, Timing belt, EAN code: 07316572594087

Brand	SKF
Mfr Part No.	PHG 800-H-200

$58.29

Despatched in 1-2 days

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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