DEEP GROOVE BALL BEARING AND ROTARY MACHINERY DEVICE,申请号JP20010118072-传众专利搜索

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.