DEEP GROOVE BALL BEARING AND ROTARY MACHINERY DEVICE
- 申请公布号：
- JP2002310149(A)
- 申请号：
- JP20010118072
- 申请日期：
- 2001.04.17
- 申请公布日期：
- 2002.10.23
- 申请人：
- NSK LTD
- 发明人：
- SAKAJIRI YOSHITERU;SUZUKI HIROSHI
- 分类号：
- F16C19/04;(IPC1-7):F16C19/04
- 主分类号：
- F16C19/04
- 摘要：
- PROBLEM TO BE SOLVED: To prevent the generation of a slip in rotation in the case of a low load, and to sufficiently secure durability in the case of a high load. SOLUTION: A ratioδ/dm between a radial internal clearanceδof a deep groove ball bearing 1 and a pitch circle diameter dm of each ball 7 is set to satisfy the relation that 1.1×10<-4> <=δ/dm<=3.5×10<-4> . With the condition thatδ/dm<=3.5×10<-4> , the generation of the slip of the rotation in the case of a low load can be prevented. With the condition that 1.1×10<-4> <=δ/dm, lowering of the durability in the case of a high load can be prevented.
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