Title:
動圧軸受の製造工具
Document Type and Number:
Japanese Patent JP4597851
Kind Code:
B2
Abstract:
A manufacturing tool ( 20 ) for forming a dynamic pressure groove ( 52 ) in an inner peripheral surface of a bearing sleeve ( 50 ) includes a tool shaft ( 21 ) for being rotated in a bore of the bearing sleeve while being moved in an axial direction thereof. Protrusions ( 25 ) are integrally and circumferentially arranged on an outer periphery of the tool shaft near a leading end ( 22 ) thereof. Machining tips ( 26 ) are integrally formed on outmost ends of the protrusions for machining the inner peripheral surface of the bearing sleeve to form the dynamic pressure groove therein.
Inventors:
Written text
Hayashi Ko
Huangxing
Taketaka
White voice
Hayashi Ko
Huangxing
Taketaka
White voice
Application Number:
JP2005353747A
Publication Date:
December 15, 2010
Filing Date:
December 07, 2005
Export Citation:
Assignee:
Fujun Precision Industry (Shenzhen) Co., Ltd.
Kojun Precision Industry Co., Ltd.
Kojun Precision Industry Co., Ltd.
International Classes:
B21J5/12; B21K1/05; B23P9/00; F16C33/14
Domestic Patent References:
| JP8243673A | ||||
| JP63245316A | ||||
| JP6297226A | ||||
| JP10151515A | ||||
| JP9216019A |
Attorney, Agent or Firm:
Masatake Shiga
Takashi Watanabe
Yasuhiko Murayama
Shinya Mitsuhiro
Takashi Watanabe
Yasuhiko Murayama
Shinya Mitsuhiro