ZWILLINGSSTOLLEN

The twin spider sits as a flexible intermediate element between the jaws or lugs of the two coupling halves. When torque is transmitted, the elastomer is loaded in compression. Through its flexibility, the element damps shocks and torsional vibration, compensates for a certain degree of shaft misalignment and thus relieves the shafts and bearings of the drive train.

As a wear part, the twin spider is the coupling component that ages in operation and is replaced on a planned basis. Replacement is usually possible without axially shifting the machines, so the coupling hubs can remain on the shafts. Selecting the elastomer hardness determines the damping and torsional stiffness behaviour of the connection.

Because the twin spider is offered on a manufacturer-neutral basis, selection depends on the correct geometry and hardness for the existing jaw or lug coupling. REEL helps identify the right double element and ensures spare part supply.