This elevator traction sheave 620-4-12 is a lift traction pulley designed to connect the hoist motor to the wire rope in a standard lift drive system. Its main function is to transfer motor power to the elevator sheave wheel so the lift car moves smoothly up and down. The 620 mm diameter with a 4-groove, 12 mm rope channel gives reliable grip on the elevator rope accessories and reduces slipping during daily operation.
