Thomson currently has two account systems - one for the website and CAD model downloads, and one for e-commerce. We understand that two logins is an inconvenience and are working to consolidate our systems into one login process. Until we’re able to consolidate the two logins, please follow these guidelines:
PSI Series clutches represent the most fundamental wrap spring clutch design. As a start-stop or single revolution clutch, it is actuated simply by external blocking or releasing of the stop collar. As a simple overrunning clutch it provides positive engagement of load to power source, but permits free overrunning when input power is slowed, stopped or reversed.
All units can be supplied with hub input/shaft output or vice versa. Designed for applications where direct mechanical control is desired, the PSI Series clutch is a reliable, easily applied, low cost solution.
To provide better service to you on our websites, we and our service providers use cookies to collect your personal data when you browse. For information about our use of cookies and how to decline them or turn them off please read our cookie policy [available here].