Shaft-hub connections by locking assemblies

A shaft-hub connection by locking assemblies fixes a hub (pulley, sprocket, gear, coupling, wheel) onto a shaft without a key. It consists of conical rings that, when the screws are tightened, expand against the hub and compress against the shaft. The resulting pressure transmits torque by friction, without play, and distributes the load over the entire contact surface instead of concentrating it in a keyway.

It allows adjusting the axial position and angular orientation of the hub during assembly, and is disassembled by loosening the screws, without damaging the shaft or hub. It is used in machines with frequent starts and stops, reversing rotation, conveyors, mixers and assemblies that need to synchronize positions.

The RINGSPANN codes in this subcategory, such as 1032-014002-000000, 1032-018001-000000 and 1032-027003-000000, are article numbers. They are not deduced from dimensions nor abbreviated: they must be requested with the complete article number, exactly as shown, with all its blocks.

When selecting, start from the torque to be transmitted, the axial or bending forces acting on the hub, and the shaft and hub diameters with their tolerances, because the fit conditions the pressure generated. The hub material and wall thickness must withstand that pressure without deforming. Also consider the condition of the contact surfaces, the screw tightening torque, and whether a single element or several in series are appropriate to achieve the required torque.

We quote RINGSPANN shaft-hub connections. Send us the complete article number via WhatsApp or, if you don't have it, the shaft diameter, hub diameter and width, and the torque to be transmitted, and we will quote it shortly.