W4A2H-STH_W4A2H-004Mach III frequently adapts catalog products to meet the individual needs of the application.  In this example the customer required a combination clutch-brake that would drive a pilot mounted sprocket when engaged and hold it stationary when disengaged.  However, the environment in which the clutch-brake would operate was dusty and there was a potential for particulates to enter the clutch-brake where they could cause premature wear or failure. 

Mach III adapted the cylinder portion of a catalog model W4A2H-STH clutch-brake by expanding the outer diameter and elongating it to form a cover.  Both the catalog model and modified design are shown on the right. 

This or a similar solution can also be used in clutch, brake and torque limiter designs.