| 摘要 |
PROBLEM TO BE SOLVED: To provide bearing structure capable of extending lubrication life of lubricant by preventing abrasion powder from incorporating into the lubricant even when abrasion by fretting occurs between an inner ring and contact members. SOLUTION: Bearing structure is provided with an axle 20, a double row conical roller bearing 11 and a rear lid 16 and an oil thrower 17 as the contact members. The double row conical roller bearing 11 is provided with the inner ring 12, an outer ring 13, a conical roller 14, a retainer 15, an oil seal case 18 and an oil seal 19. The rear lid 16 and the oil thrower 17 are in contact with end of the inner ring 12 and are fixed to the axle 20 and are provided with grooves 16a, 17a on its external surface and there is housed an O-ring as a sealing member which is disposed to cover a contact portion of the inner ring 12 and the contact members 16, 17 within the grooves 16a, 17a. COPYRIGHT: (C)2006,JPO&NCIPI
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