Roller for operation at high temperature and speed with bearing lubricant feed line has rotary seal with dual slide ring seal with two spaced slide rings forming annular chamber between them

摘要

The roller has a rotary hollow roller, bearing bells at each end, an axial fitting at each end of smaller diameter than the hollow roller, a rotary seal on the end of the fitting axially outside the bearing and bearing lubricant feed line. The rotary seal has a dual slide ring seal (25) with two spaced slide rings (26) forming an annular chamber (29) between them : An independent claim is also included for a method of operating an inventive device.