发明名称 |
ROLLING BEARING, SPINDLE SUPPORT STRUCTURE OF MAIN MOTOR FOR RAILWAY VEHICLE, AND BEARING STRUCTURE |
摘要 |
A cylindrical roller bearing 41 comprises an inner ring 42, an outer ring 43 having the same axial width as the inner ring 42 and having an insulation layer 43a formed on an outer diameter surface and both end faces thereof, cylindrical rollers 44 arranged between the inner ring 42 and the outer ring 43, a retainer 45 retaining intervals of the cylindrical rollers 44, and a sealing seal 46 as a sealing member having a roughly channel-shaped configuration in cross section projecting from both end faces of the inner ring 42 and the outer ring 43. Thus, a relation between a length L 3 of the roller 44 and an axial width W 3 of the inner ring 42 and the outer ring 43 satisfies L 3 /W 3 ‰§ 0.4, and a relation between a bearing volume V 3 of the cylindrical roller bearing 41 and an internal space capacity C 3 of the cylindrical roller bearing 41 satisfies 0.25 ‰¦C 3 /V 3 ‰¦ 0.55. |
申请公布号 |
EP1925832(A1) |
申请公布日期 |
2008.05.28 |
申请号 |
EP20060796944 |
申请日期 |
2006.08.29 |
申请人 |
NTN CORPORATION |
发明人 |
SONE, KATSUNORI;ITO, HIDEJI;YAMAKAWA, TSUKASA;TSUJI, NAOAKI |
分类号 |
F16C19/26;F16C33/66;F16C33/76;F16C33/80 |
主分类号 |
F16C19/26 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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