Title:
NUT MANUFACTURING METHOD, AND BALL SCREW
Document Type and Number:
Japanese Patent JP2007196356
Kind Code:
A
Abstract:
To manufacture a nut having a rolling groove for rolling a rolling element in a short period of time while ensuring the requested lifetime.
A ball rolling groove 2a which is formed spirally in an inner circumferential surface of a nut 2 is finished by performing cutting so that the surface roughness of a portion 2A forming a contact surface with a ball 3 is less than that of other portions.
COPYRIGHT: (C)2007,JPO&INPIT
Inventors:
KATO MASAHITO
Application Number:
JP2006020942A
Publication Date:
August 09, 2007
Filing Date:
January 30, 2006
Export Citation:
Assignee:
NSK LTD
International Classes:
B23B5/48; F16H25/22; F16H25/24
Attorney, Agent or Firm:
Tetsuya Mori
Yoshiaki Naito
Cui Shu Tetsu
Yoshiaki Naito
Cui Shu Tetsu
Previous Patent: SURFACE COATED CERMET CUTTING TOOL HAVING HARD COATING LAYER EXHIBITING EXCELLENT CHIPPING RESISTANC...
Next Patent: CUTTING TOOL
Next Patent: CUTTING TOOL