German SFERAX coupling SFERAX model SFERAX price

SFERAX couplings connect two flanged half-couplings to their respective shafts using standard parallel keys, and then bolt the two half-couplings together to transmit motion and torque. This type of coupling has two main structural forms: (1) alignment of the two shafts is achieved by bolts in reamed holes, with torque transmitted through compression and shear on the bolt shanks; (2) alignment is achieved by mating a spigot on one half-coupling with a recess on the other. The bolts connecting the two half-couplings can be grade A and grade B standard bolts, with torque transmitted via the friction moment at the joint interface of the two half-couplings.