L 075 pilot bore timing pulleys

L 075 pilot bore timing pulleys are designed for 3/4" (19.1 mm) wide L belts. The pilot bore can be freely bored out for a shaft of any diameter, including inch sizes.

L 075 pilot bore synchronous pulleys - easy repair of older machines

You match the pulley to the existing shaft without intermediate bushes, which makes repairing older machines easier. You choose the fit yourself: tighter for continuous operation or looser if the pulley will be removed often. Smaller pulleys are made of C45 steel, and larger ones of grey cast iron.

L 075 timing pulleys with a pilot bore and keyway to DIN 6885

L 075 pulleys with a pilot bore, in a wide choice of tooth counts. The bore is machined on a lathe, usually to an H7 tolerance, and the keyway is cut to DIN 6885.

L 075 timing belt pulleys - questions about choosing the small pulley

How many teeth should the small pulley have?

The fewer the teeth, the more the belt bends and the fewer teeth share the load at the same time. For heavy loads, choose a driving pulley with a higher number of teeth.