Available on XT®, Tapered Bore or Q-D® Hubs.
Vulcanized Rough Top is 60/70 durometer Shore A, SBR Black Rubber. It is bonded directly to the pulley rim in the vulcanizing process.
Bolt on Rough Top Lagging material is applied to the pulley rim, which is coated with a special bonding adhesive and fastened to the pulley rim with strong self tapping screws at the beginning and end of the lagging.
The top cover of both types of rough top has thousand of fingers that grip the belt. This irregular surface increases the rubber’s tractive capacity and helps keep the rubber clean.