发明名称 |
PULLEY ROTATINGLY SUPPORTING DEVICE |
摘要 |
The object of the invention is to provide a structure which not only can be reduced in size but also can secure the durability of an endless belt (11) to be provided on a driven pulley (4b) and a pulley rotation support apparatus for supporting the driven pulley (4b). <??>In the invention, as the above pulley rotation support apparatus, there is used a three-point-contact-type or four-point-contact-type radial ball bearing (14b). An offset quantity delta , which is an axial-direction distance between the center alpha of a radial load applied from the endless belt (11) to the driven pulley (4b) and the center position beta of the radial ball bearing (14b), is set 40% or less of the pitch circle diameter of the radial ball bearing (14b). The radial clearance of this radial ball bearing (14b) is set 0.2% or less of the above pitch circle diameter. <IMAGE> |
申请公布号 |
EP1429042(A1) |
申请公布日期 |
2004.06.16 |
申请号 |
EP20020765474 |
申请日期 |
2002.09.10 |
申请人 |
NSK LTD. |
发明人 |
TANABE, KOUICHI;MIYAGAWA, TAKAYUKI;TANIGUCHI, MASATO |
分类号 |
F16C13/00;F16C19/16;F16C33/41;F16C33/78;F16H55/36 |
主分类号 |
F16C13/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|