Overview

• Backstops provide positive prevention of reverse rotation or backrun without backlash on conveyors, elevator head shafts and similar applications, designed as standard accessories, backstops can be furnished on horizontal drives
• DO NOT use backstops on vertical drives
• DO NOT use the backstop as a substitute for a brake
• These backstops are designed to prevent reverse rotation five times or less in eight hours, with one minute or more in the overrunning direction between backstopping load applications
• If backstopping operations are more frequent, or the time between operations is less than one minute, the backstop is classified as a working or indexing device and the application must be referred to the factory for engineering review
• Not available in 5:1 ratio in sizes 5307J and 5315J