Timing Pulleys & Bars: Classical Imperial Pitch L (3/8″) Pilot Bore

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Enquire about Timing Pulleys & Bars: Classical Imperial Pitch L (3/8″) Pilot Bore

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Listed here is our current standard stock range of pilot bore Pulleys and Bars to suit the Classical L (3/8″) pitch of Timing Belts.

The standard stock range of pulleys are available in 50 tooth sizes to suit 3 standard belt widths of 050 (1/2″), 075 (3/4″) and 100 (1″) which should cater for the majority of power transmission drive applications. Although you can also generate a pulley for any alternative width by selecting a bar length from the range of 17 tooth sizes we offer.

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

Timing Bars:

Material Bars: in Aluminium UNI 3571 TA16 & in Steel C40 UNI EN 10083-1 Note: The Useable length is not necessary the total length of the bar, but the length which has the full tooth depth, for use as a pulley.

Alt. Shaft Fixing

As an alternative to either Boring & Keywaying a pilot bore sprocket or using a Taper bored sprocket 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!

Re-working Service

To compliment the Stock range of Products the company offers an in house comprehensive reworking service to modify any stock pulley to suit your individual 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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