Title:
BALL SCREW
Document Type and Number:
Japanese Patent JP2017072233
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To unify load distribution received by multiple balls inside a nut in a nut where an excessive load acts on a specific range.SOLUTION: The nut 2 of this ball screw 10 includes: a low-rigidity part provided in a specific part of a cylindrical part 4; and a high-rigidity part provided in other parts than the specific part of the cylindrical part 4 and having higher rigidity than that of the low-rigidity part, in the cylindrical part 4 having an inner peripheral surface at which a thread groove 2a constituting a load rolling passage is formed.SELECTED DRAWING: Figure 2
Inventors:
ABE DAISUKE
Application Number:
JP2015201136A
Publication Date:
April 13, 2017
Filing Date:
October 09, 2015
Export Citation:
Assignee:
NSK LTD
International Classes:
F16H25/24; B30B1/18; F16H25/22
Attorney, Agent or Firm:
Tetsuya Mori
Suzuki Isobe
Hide Tanaka Tetsu
Ichi Hirose
Suzuki Isobe
Hide Tanaka Tetsu
Ichi Hirose