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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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161-180 of 210 products

161-180 of 210 products

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

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	375-H-200

$60.02

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

Imperial, Rubber, Timing belt, EAN code: 4051817002455

Brand	ContiTech
Mfr Part No.	270-H-200

$27.17

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270-H-200, Gates, PowerGrip® Imperial Timing Belt - 9257-44027

Imperial, Rubber, Timing belt, EAN code: 5412571225785

Brand	Gates
Mfr Part No.	270-H-200

$38.34

In stock ( * cut from sleeve )

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

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	270-H-200

$47.72

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

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	650-H-200

$92.03

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PHG 660-H-200, SKF, Synchronous Imperial Timing Belt - PHG 660-H-200

Imperial, Rubber, Timing belt, EAN code: 07316572593790

Brand	SKF
Mfr Part No.	PHG 660-H-200

$38.93

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660-H-200, Gates, PowerGrip® Imperial Timing Belt - 9257-44066

Imperial, Rubber, Timing belt, EAN code: 5412571225914

Brand	Gates
Mfr Part No.	660-H-200

$76.68

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

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	660-H-200

$93.27

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

Imperial, Rubber, Timing belt, EAN code: 4051817003254

Brand	ContiTech
Mfr Part No.	670-H-200

$54.51

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

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	670-H-200

$94.07

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

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	680-H-200

$94.66

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885-H-200, Gates, PowerGrip® Imperial Timing Belt - 9277-54067

Imperial, Rubber, Timing belt, EAN code: 5412571264197

Brand	Gates
Mfr Part No.	885-H-200

$97.29

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PHG 900-H-200, SKF, Synchronous Imperial Timing Belt - PHG 900-H-200

Imperial, Rubber, Timing belt, EAN code: 07316572594230

Brand	SKF
Mfr Part No.	PHG 900-H-200

$52.98

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

Imperial, Rubber, Timing belt, EAN code: 4051817003605

Brand	ContiTech
Mfr Part No.	900-H-200

$69.32

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900-H-200, Gates, PowerGrip® Imperial Timing Belt - 9257-44090

Imperial, Rubber, Timing belt, EAN code: 5412571225969

Brand	Gates
Mfr Part No.	900-H-200

$98.79

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

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	900-H-200

$120.39

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900-XXH-200, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt, EAN code: 4051817011648

Brand	ContiTech
Mfr Part No.	900-XXH-200

$285.32

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900-XXH-200, Gates, PowerGrip® Imperial Timing Belt - 9257-05102

Imperial, Rubber, Timing belt, EAN code: 5414465667886

Brand	Gates
Mfr Part No.	900-XXH-200

$287.85

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900-XXH-200, Optibelt, ZR Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	900-XXH-200

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2 alternatives

905-H-200, Gates, PowerGrip® Imperial Timing Belt - 9277-54924

Imperial, Rubber, Timing belt, EAN code: 5414465150685

Brand	Gates
Mfr Part No.	905-H-200

$100.26

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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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