ROLLING BEARING AND RESIN PULLEY UNIT OF INSTALLING THE SAME FOR EXTENDING SEIZURE-FREE LIFETIME BY USING RUBBER SEALING MEMBER

摘要

PURPOSE: A rolling bearing and a resin pulley unit for installing the same are provided to prevent the deterioration of rubber seals and extend the seizure-free lifetime. CONSTITUTION: A rolling bearing and a resin pulley unit for installing the same includes an inner race(21), an outer race(22), rolling elements, a seal member, and a rubber sealing member. The outer race(22) is coaxial with the inner race(21). The rolling members are provided between the inner race(21) and the outer race(22). The seal member is provided between end portions of the inner race(21) and the outer race(22). The seal member includes a core metal and a rubber seal including a recess and a projection at the outer surface.