Pin Bush type Flexible Coupling is of the cushioned drive type, transmitting the torque through high tensile steel bolts to the machine input. Highly developed rubber compounds are used in bushes to absorb shock, tensional vibrations and slight misalignments. Simple and compact in construction, Pin Bush Couplings are capable of transmitting high torques at maximum speeds. This type of coupling permits drives in either direction and requires neither lubrication, nor adjustment after fitting.