CIRCULATION COMPONENT RETAINER AND BALL SCREW

Title:

CIRCULATION COMPONENT RETAINER AND BALL SCREW

Document Type and Number:

WIPO Patent Application WO/2018/066664

Kind Code:

A1

Abstract:

Provided is a circulation component retainer with which damage to the circulation component and flying out of balls can be prevented. The circulation component (20) is a tubular resin member formed substantially in a C shape having a leg section (21) at both ends and an intermediate section (22) arranged between the leg sections (21). The circulation component (20) is attached to a nut (2) such that the leg sections (21) are inserted from the outer-surface side of the nut (2) into a pair of through-holes (13) opening at the outer surface of the nut (2) and communicating with a spiral groove (2a) in the nut (2), and the intermediate section (22) is positioned on the outer surface of the nut (2). The metal circulation component retainer (30), which is for securing the circulation component (20) to the nut (2), is equipped with an intermediate section retaining part (32), which retains the intermediate section (22) so as to cover the entire portion of the surface of the intermediate section (22) that protrudes from the outer surface of the nut (2), and leg section retaining parts (31), which retain the leg sections (21) so as to cover the entire portion of the surface of the leg sections (21) that protrudes from the outer surface of the nut (2).

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Inventors:

WATARAI YUUSUKE (JP)
ISHIKAWA AKIHIKO (JP)

Application Number:

JP2017/036358

Publication Date:

April 12, 2018

Filing Date:

October 05, 2017

Export Citation:

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Assignee:

NSK LTD (JP)

International Classes:

F16H25/22; F16H25/24

Foreign References:

JP2013104535A	2013-05-30
JP2015224660A	2015-12-14
JP3122085U	2006-06-01
JP2005155887A	2005-06-16

Other References: