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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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441-460 of 2878 products

441-460 of 2878 products

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

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	166-XL-037

$5.69

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

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	168-XL-025

$4.11

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

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	168-XL-031

$4.68

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

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	168-XL-037

$5.69

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1680-MXL-012, Gates, PowerGrip® Imperial Timing Belt - 9277-41394

Imperial, Rubber, Timing belt, EAN code: 5412571236897

Brand	Gates
Mfr Part No.	1680-MXL-012

$2.47

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1680-MXL-019, Gates, PowerGrip® Imperial Timing Belt - 9277-41395

Imperial, Rubber, Timing belt, EAN code: 5412571236903

Brand	Gates
Mfr Part No.	1680-MXL-019

$3.92

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1680-MXL-025, Gates, PowerGrip® Imperial Timing Belt - 9277-41396

Imperial, Rubber, Timing belt, EAN code: 5412571236910

Brand	Gates
Mfr Part No.	1680-MXL-025

$5.14

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1680-XH-200, Gates, PowerGrip® Imperial Timing Belt - 9277-54089

Imperial, Rubber, Timing belt, EAN code: 5412571264401

Brand	Gates
Mfr Part No.	1680-XH-200

$244.73

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1680-XH-300, Gates, PowerGrip® Imperial Timing Belt - 9277-54090

Imperial, Rubber, Timing belt, EAN code: 5412571264418

Brand	Gates
Mfr Part No.	1680-XH-300

$367.10

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1680-XH-400, Gates, PowerGrip® Imperial Timing Belt - 9277-54086

Imperial, Rubber, Timing belt, EAN code: 5412571264371

Brand	Gates
Mfr Part No.	1680-XH-400

$489.43

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1680-XH-500, Gates, PowerGrip® Imperial Timing Belt - 9277-54087

Imperial, Rubber, Timing belt, EAN code: 5412571264388

Brand	Gates
Mfr Part No.	1680-XH-500

$611.82

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169-L-050, Gates, PowerGrip® Imperial Timing Belt - 9277-40032

Imperial, Rubber, Timing belt, EAN code: 5412571233568

Brand	Gates
Mfr Part No.	169-L-050

$7.01

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169-L-050, Optibelt, ZR Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	169-L-050

$9.80

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169-L-075, Gates, PowerGrip® Imperial Timing Belt - 9277-40033

Imperial, Rubber, Timing belt, EAN code: 5412571233575

Brand	Gates
Mfr Part No.	169-L-075

$10.54

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169-L-075, Optibelt, ZR Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	169-L-075

$13.20

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169-L-100, Gates, PowerGrip® Imperial Timing Belt - 9277-40034

Imperial, Rubber, Timing belt, EAN code: 5412571233582

Brand	Gates
Mfr Part No.	169-L-100

$14.06

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169-L-100, Optibelt, ZR Imperial Timing Belt

Imperial, Rubber, Timing belt

Brand	Optibelt
Mfr Part No.	169-L-100

$16.85

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132-XL-025, Gates, PowerGrip® Imperial Timing Belt - 9277-40573

Imperial, Rubber, Timing belt, EAN code: 5412571234077

Brand	Gates
Mfr Part No.	132-XL-025

$2.63

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132-XL-031, Gates, PowerGrip® Imperial Timing Belt - 9277-42532

Imperial, Rubber, Timing belt, EAN code: 5414465077838

Brand	Gates
Mfr Part No.	132-XL-031

$3.27

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132-XL-037, Gates, PowerGrip® Imperial Timing Belt - 9277-42458

Imperial, Rubber, Timing belt, EAN code: 5412571908527

Brand	Gates
Mfr Part No.	132-XL-037

$3.92

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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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