Unique PB Pin Bush Coupling is used in general engineering applications for reliable power transmission under normal shaft misalignments. Couplings dampen shocks and vibrations. Progressively increasing stiffness characteristics of special shaped buffers ensure control of vibration amplitude for protection of equipment. Couplings can take considerable overloads.
Standard range has hubs of Cast Iron. For special applications couplings with forged steel hubs available. Also available couplings with Brake Drum Couplings with spacer.

Pin Bush coupling is a modified form of the protected type flange coupling. A Pin Bush coupling has pins and it works with coupling bolts. The rubber or leather bushes are used over the pins. The coupling has two halves dissimilar in construction. The pins are rigidly fastened by nuts to one of the flange and kept loose on the other flange. This coupling is used to connect of shafts which having a small parallel misalignment, angular misalignment or axial misalignment. In this coupling the rubber bushing absorbs shocks and vibration during its operations. This type of coupling is mostly used to couple electric motors and machines.