Timing belt pulley XH 200 z=21 steel

Product Description

Timing belt pulley XH 200 z=21 steel - for XH belts with a pitch of 7/8" (22.225 mm). Made of C45 steel.

The pilot bore allows the pulley to be bored precisely to the shaft size and the fit required by the machine, to H7 tolerance. The keyway is cut on a slotting machine according to DIN 6885.

The pulley performs well wherever precise motion synchronisation is required: very heavy industrial drives, construction and mining machinery.

When ordering, please check the lead time - it is shown directly next to the product's stock level.

Pulley for XH toothed belt drive - 21 teeth, ready for boring

FAQ

Do you ship pulleys from stock?

The stock level is shown above the price and may vary depending on the warehouse.

What materials do you use for pulleys?

C45 steel provides high mechanical strength and fatigue resistance - the right choice for heavily loaded drives with frequent torque peaks.

Does shaft runout damage pulleys?

Yes - shaft runout causes cyclic jerking of the belt, which leads to cracking of the pulley hub and accelerated belt wear. Before mounting the pulley, it is worth checking the shaft runout with a dial indicator.

What is a pilot bore and how is it rebored?

A pilot bore is a technological bore smaller than the target shaft diameter - a turner rebores it precisely to the specific shaft, to H7 tolerance. The keyway is cut on a slotting machine according to DIN 6885.