Conveyor belt roller with main shaft and roller bearings - has seal fixed at outer edge on cylindrical socket in main shaft

摘要

The seal (50) is concentric with the main shaft (2a). It has an outer edge (51a) fixed on the cylindrical tubular socket (5) and an inner free edge (52b) which is in permanent contact with the surface of a shaft end of reduced diameter. The seal is an annular cover (51) spaced from the cylindrical surface of the shaft end and supporting an elastomer sealing mass (52) which is fixed at the inner free end (51b) of the cover by the outer edge (52a). The elastomer sealing mass can have an inner free edge (52b) with flexible webs (53) at an angle to each other to occupy the entire height difference. ADVANTAGE - A highly reliable sealing action is provided for the rollers reducing the danger of dirt which could cause breakdown.