Rolling-Mill Bearing Seal Tackles Tough Conditions

Chicago Rawhide has added an HDL seal to its family of large-diameter seals. This seal is designed to solve the problems associated with sealing bearings on the large rolling mills that produce products such as paper and primary metals. These are difficult operating environments where it is critical to retain bearing lubricants and exclude extreme contaminants to avoid costly production line shutdowns for emergency maintenance. The seal has been designed to provide superior sealing performance while compensating for common factors such as roll deflection, shaft misalignment and run-out. The rubber main element is bonded to the metal case, providing security against internal bypass leakage. Operating speeds of up to 35 m/s (6,900 fpm) are attainable, and a maximum misalignment of 2.5 mm (0.098 in.) is possible. Available in shaft sizes from 200 mm to 1,400 mm (8 in. to 55 in.), the seal is suitable for use in pulp and paper mills, high-speed gearboxes, work rolls in metal-finishing plants and in specialty equipment with high run-out or misalignment situations, such as crushers, shredders, etc.

Chicago Rawhide