| 摘要 |
PROBLEM TO BE SOLVED: To provide an inexpensive double row bearing for fan coupling with suppressed manufacturing cost. SOLUTION: This double row bearing 21 for fan coupling comprises two rows of single row deep groove ball bearings 22 and 23. Contact seal members 27 are arranged on both ends of the ball bearing 22 in order to block both opening parts of a bearing internal space 18 to prevent the leak of the lubricating grease filled in the space 18 and the penetration of silicone oil S to the space 18. Contact seal members 28 are arranged on both ends of the ball bearing 23 in order to block both opening parts of the bearing internal space 18 to prevent the leak of the lubricating grease filled in the space 18 and the penetration of a foreign matter to the space 18. A fluororubber material is used as the material of the contact seal members 27, and an acrylic material is used as the material of the contact seal members 28. COPYRIGHT: (C)2004,JPO
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