Taper clamping bushes are designed with a cylindrical bore and a parallel keyway. A Taper clamping bush has a tapered outside diameter and fits into the taper bore of the hub part. The Taper clamping bush has a slot running along its length. To fit, half blind holes are drilled in the Taper clamping bush, while on the opposite side half thread turns are cut in the hub part. With the aid of the fitting bolts, which are supported on the base of the blind holes, the Taper clamping bush is pushed into the taper bore. The Taper clamping bush is compressed, thus generating a parallel key and clamp connection between shaft and hub part.

To dismantle, the fitting bolts are removed and screwed into the forcing-off threads. The forcing-off threads are cut half in the Taper clamping bush and half in a blind hole in the hub part. When the forcing-off bolts are fitted, the Taper clamping bush is forced out of the taper hub bore. The connection is broken.

The Taper clamping bush and the fitting and dismantling bolts are always screwed in from the larger outer diameter side of the taper.

The torque is transmitted via the clamping connection and the parallel key. No axial fixture is required with normal axial forces, as the clamping connection is sufficient.

Materials

Grey cast iron EN-GJL-220 to 250
alternatively Steel in quality R_e > 300 N/mm²