Steel or grey cast iron.

Phosphated

Standard HTD profile with metric pitch (half-round teeth). At least one toothed belt pulley must have a rim flange. The toothed belt pulleys have a centre bore or are pre-drilled (this can vary due to production methods). For this reason, the dimension D2 max. given in the table is the maximum diameter of the bore that the toothed belt pulleys are supplied with. This pilot hole/centre bore can be customised with a reamed hole, reamed hole with keyway or a tapped hole by the customer. Alternatively, bushes can be fitted by the customer to reduce the diameter.

The number of spokes can vary with grey cast iron toothed belt pulleys.