3-1/2″ Needle Bearing Pulley with Zerk
This cast pulley is designed to handle heavy loads. Used for 2:1 breakdowns on feeder and nest winching as well as ventilation suspension and for corner pulleys on large curtain systems. The needle bearing sheave can be greased with the 62.5 degree zerk fitting. The machined groove will accommodate up to 1/4″ cable.
Commonly used for 2:1 breakdowns on feeder and nest winching as well as ventilation suspension.