| 摘要 |
<p>In the disclosed rolling bearing, the shape of fitting grooves for attaching a sealing device of a rotating wheel is the same on both end surfaces of said rotating wheel, and the shape of the seal grooves of a fixed wheel is symmetrical around a rolling element on both end surfaces of said fixed wheel. Each of a pair of sealing devices is formed symmetrically around the rolling element and is constituted by linking to one end of a cored bar a fitting portion which comprises an elastic material and fits the seal fitting grooves, and by linking to the other end a seal lip which comprises an elastic material and is in sliding contact with the seal grooves. A magnet opposite of a magnetic sensor of a magnetic encoder is bonded to one of the cored bars, and the other cored bar is covered by an elastic material. By means of such a configuration, costs can be reduced by using common parts for the fitting grooves and seal grooves of both end surfaces of the bearing as well as the sealing device, and grease leaks from the magnet side of the sealing device can be prevented.</p> |
