Ratchet clutches control motion in several ways: one-way left, one-way right, freewheeling, and fully locked.
Each clutch body contains only a gear, two spring-loaded pawls, and a control lever. Moving the control lever to the side engages a pawl and permits driving the gear in one direction only; moving it to the other side drives the gear in the opposite direction. Besides clockwise and counterclockwise ratcheting action, the units have a neutral position that is selected by centering the control lever. When in neutral, the gear engages with both pawls and prevents it from turning.
Static torque range is 200 lb-ft (272 Nm) with an overrunning speed of 250 rpm to 6,260 lb-ft (2,817 Nm) with an overrunning speed of 30 rpm.
Worcester, MA 01613