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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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221-240 of 2878 products

221-240 of 2878 products

148-XL-037, Gates, PowerGrip® Imperial Timing Belt - 9277-53967

Imperial, Rubber, Timing belt, EAN code: 5412571263251

Brand	Gates
Mfr Part No.	148-XL-037

$4.30

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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135-L-100, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt, EAN code: 4051817004633

Brand	ContiTech
Mfr Part No.	135-L-100

$8.89

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This item is not currently available from our stocks.

Despatch date information is on request.

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PHG 200-XL-037, SKF, Synchronous Imperial Timing Belt - PHG 200-XL-037

Imperial, Rubber, Timing belt, EAN code: 07316572596197

Brand	SKF
Mfr Part No.	PHG 200-XL-037

$2.55

Despatched in 3-5 days

230-H-100, Optibelt, ZR Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	230-H-100

$22.10

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This item is not currently available from our stocks.

Despatch date information is on request.

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PHG 840-XH-300, SKF, Synchronous Imperial Timing Belt - PHG 840-XH-300

Imperial, Rubber, Timing belt, EAN code: 07316573406778

Brand	SKF
Mfr Part No.	PHG 840-XH-300

$197.20

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This item is not currently available from our stocks.

Despatch date information is on request.

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840-XH-300, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt, EAN code: 4051817007993

Brand	ContiTech
Mfr Part No.	840-XH-300

$190.86

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This item is not currently available from our stocks.

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PHG 600-L-075, SKF, Synchronous Imperial Timing Belt - PHG 600-L-075

Imperial, Rubber, Timing belt, EAN code: 07316572595329

Brand	SKF
Mfr Part No.	PHG 600-L-075

$13.76

Despatched in 3-5 days

600-L-075, Gates, PowerGrip® Imperial Timing Belt - 9257-32060

Imperial, Rubber, Timing belt, EAN code: 5412571224849

Brand	Gates
Mfr Part No.	600-L-075

$23.74

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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PHG 540-H-150, SKF, Synchronous Imperial Timing Belt - PHG 540-H-150

Imperial, Rubber, Timing belt, EAN code: 07316572593486

Brand	SKF
Mfr Part No.	PHG 540-H-150

$23.86

Despatched in 3-5 days

1520-MXL-012, Gates, PowerGrip® Imperial Timing Belt - 9277-41373

Imperial, Rubber, Timing belt, EAN code: 5412571236729

Brand	Gates
Mfr Part No.	1520-MXL-012

$2.25

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This item is not currently available from our stocks.

Despatch date information is on request.

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360-H-200, Gates, PowerGrip® Imperial Timing Belt - 9257-44036

Imperial, Rubber, Timing belt, EAN code: 5412571225815

Brand	Gates
Mfr Part No.	360-H-200

$47.19

In stock ( * cut from sleeve )

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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PHG 700-H-100, SKF, Synchronous Imperial Timing Belt - PHG 700-H-100

Imperial, Rubber, Timing belt, EAN code: 07316572593875

Brand	SKF
Mfr Part No.	PHG 700-H-100

$20.59

Despatched in 3-5 days

PHG 450-L-100, SKF, Synchronous Imperial Timing Belt - PHG 450-L-100

Imperial, Rubber, Timing belt, EAN code: 07316572595152

Brand	SKF
Mfr Part No.	PHG 450-L-100

$13.76

Despatched in 3-5 days

187-L-037, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	ContiTech
Mfr Part No.	187-L-037

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In stock

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187-L-10MM, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	ContiTech
Mfr Part No.	187-L-10MM

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In stock

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

Imperial, Rubber, Timing belt, EAN code: 4051817002424

Brand	ContiTech
Mfr Part No.	270-H-075

$11.29

In stock

270-H-100, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt, EAN code: 4051817002431

Brand	ContiTech
Mfr Part No.	270-H-100

$14.53

In stock

270-L-050, ContiTech, CONTI® SYNCHROBELT Imperial Timing Belt

Imperial, Rubber, Timing belt, EAN code: 4051817004138

Brand	ContiTech
Mfr Part No.	270-L-050

$7.25

In stock

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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