Timing Pulleys: Classical Imperial Pitch H (1/2″) Pilot Bore

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Enquire about Timing Pulleys: Classical Imperial Pitch H (1/2″) Pilot Bore

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Listed here is our current standard stock range of pilot bore Pulleys to suit the Classical H (1/2″) pitch of Timing Belts.

The standard stock range of pulleys are available in 43 tooth sizes to suit 5 standard belt width of 075 (3/4″), 100 (1″), 150 (1-1/2″), 200 (2″) and 300 (3″) which should cater for the majority of power transmission drive applications.

Alternatively, if you can not find the tooth size you are looking for here. The company does also provides a full manufacturing service to suit any customer’s individual requirement, see our timing pulley manufacturing page for full details.

Range of Sizes

Timing Pulleys: with boss one side

Material Pulleys: Steel C45E UNI EN 10083-1 with Flanges up to & including 42 tooth Cast Iron EN-GJL-200 UNI EN 1561 with flanges from 43 to 48 tooth without Flanges 49 tooth & above.

Alt. Shaft Fixing

As an alternative to either Boring & Keywaying a pilot bore pulley or using a Taper bored pulley and Bush. Why not take a look at the range of Locking Bushes we now offer, as they eliminate the need for fixing via a Keyway-Key thereby providing the added benefit of a uniform distribution of the drive load over the entire diameter of the bush.

View Range

Drive Design Service

A Free Drive Selection Service is available upon request, please click on this link to go to our Drive Selection Service Page for details!

Reworking Service

To compliment this range of stock products the company can also provide a variety of finishing services, to suit individual customer’s own requirements.

Plating Service

A Full range of add on Plating Finishes is available :-

  • Zinc (Clear & Yellow)
  • Nickel
  • Chemically Black Phosphate
  • Hard Anodising for Aluminium Products!


The company also provides a Manufacturing Service that caters for :-

  • Any requirement outside it’s stock ranges!
  • Customers own drawing requirement.
  • Or when a stock pulley is not suitable?

See our manufacturing Capacity


Note: Only one pulley’ within a timing pulley drive needs to have Flanges to stop belt run off.

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