Hilliard’s line of overrunning clutches is economically priced and ideally suited for backstopping and gearbox applications. Custom designs and rapid prototyping are available. The overrunning clutch can be used for ratchet-type indexing operations such as packaging equipment and printing presses. When used in conjunction with a torque arm to hold the output shaft, Hilliard overrunning clutches provide instant backstopping protection with zero backlash from reversed rotation whenever power to the conveyor’s drive unit is interrupted.