H 075 pilot bore timing pulleys

H 075 pilot bore timing pulleys are pulleys for H belts with a 1/2" pitch and a width of 3/4" (19.1 mm), supplied with a pilot bore. You bore out the hole for your shaft - including non-standard or imperial diameters.

H 075 pilot bore timing pulley - make the bore and keyway for your shaft

A pilot bore pulley gives you complete freedom: you decide on the bore diameter, fit and type of key, so the pulley fits any design. A well-bored hole ensures very low runout. Smaller pulleys are made of C45 steel, and larger ones of grey cast iron, which dampens vibration.

H 075 synchronous pulleys with a pilot bore for machining

H 075 pulleys with a pilot bore, in a wide choice of tooth counts. The bore is usually machined to H7 tolerance, and the keyway is cut to DIN 6885. Hub and pilot bore diameters are given on the product page.

Frequently asked questions about H 075 pilot bore timing pulleys

Can I make an imperial bore in the pulley?

Yes. The pilot bore can be bored out for a metric or imperial shaft and a keyway cut to the appropriate standard.