Q. What is pin bush coupling?

Answer

To transmit power from one shaft to another, a Flexible Pin Bush Coupling connects the ends of the shafts together. Elastomer components soften impact loads, absorb vibration, and can even compensate for a misalignment of up to 0.5 degrees. The traditional bushing consists of a neoprene elastomer and a bronze sleeve coated in graphite. A buyer can still buy them, and there's even a modern alternative called urethane bushings. The Pin Bush coupling is a variant of the protected flange coupling. Pin Bush couplings are used with coupling bolts, and they feature pins. Over the pins, a buyer can place rubber or leather bushes. Both portions of the connection are built differently.