Timing belt pulley PolyChain GT PC 8M 21 z=28 for Taper-Lock bush 1210

Product Description

Timing belt pulley PolyChain GT PC 8M 21 z=28 for Taper-Lock bush 1210 - for HTD 8M / PolyChain GT belts with a pitch of 8 mm (HTD). Made of C45 steel with a profile optimised for Gates PolyChain GT polyurethane belts.

The Taper-Lock system eliminates the need to bore out the hub. The bush slides into the tapered seat of the pulley and, after the screws are tightened to a torque of approx. 28 Nm, it clamps onto the shaft without a press or special tools. Removal is just as simple - one screw inserted into the removal hole pushes the bush out without risk of damaging the shaft.

Used in machines requiring accurate motion transmission: industrial drives, heavy machinery, production lines.

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

Pulley for PolyChain GT synchronous drive 8M 21 mm - 28 teeth

FAQ

How can you recognise a worn pulley groove?

If the bottom of the groove is shiny, the belt has bottomed out and no longer wedges against the flanks - the pulley needs replacing. Profile gauges are used for checking.

How does excessive belt tension affect the bearings?

Excessive radial force puts high loads on the bearings, leading to overheating and premature failure. The correct tension is specified by the belt manufacturer.

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?

At the same width, a PolyChain GT belt transmits considerably more torque than a conventional HTD belt. It does not produce dust, is resistant to oils and requires no lubrication.