| 摘要 |
PROBLEM TO BE SOLVED: To maintain sealing property in a high temperature environment at low cost by providing a contact type sealing plate between an outer ring and an inner ring and providing a contact part having excellent heat resistance and small slide resistance in either of an outside diameter and an inside diameter which come into contact mutually and slide on the sealing plate. SOLUTION: A sealing plate 5 is provided with a heat-resistant contact part 9 on an inside diameter of a metallic shield plate 6. The metallic shield plate 6 is fixed by inserting an outside diameter 7 into a peripheral groove 2 of an outer ring 1 and fitting a retaining ring 13. The contact part 9 is formed into a desired shape in all region in the peripheral direction of the inside diameter of the metallic shield plate 6 using such material that can endure the use in high temperature environment and has excellent heat resistance and small slide resistance, for example, tetrafluoroethylene resin and comes into contact with a peripheral groove 4 of an inner ring 3. Consequently, it is possible to obtain the same sealing performance as tetrafluoroethylene resin seal even in a general sealing plate mounting space without changing conventional width of a bearing and shape of a rolling element.
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