Invention Grant
- Patent Title: Fixed-type constant velocity universal joint
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Application No.: US14899856Application Date: 2014-05-26
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Publication No.: US10066674B2Publication Date: 2018-09-04
- Inventor: Hiroyasu Hirukawa , Teruaki Fujio
- Applicant: Hiroyasu Hirukawa , Teruaki Fujio
- Applicant Address: JP Osaka
- Assignee: NTN CORPORATION
- Current Assignee: NTN CORPORATION
- Current Assignee Address: JP Osaka
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP2013-133809 20130626
- International Application: PCT/JP2014/063853 WO 20140526
- International Announcement: WO2014/208241 WO 20141231
- Main IPC: F16D3/224
- IPC: F16D3/224 ; F16D3/223

Abstract:
A fixed type constant velocity universal joint of a track groove crossing type has track grooves of an inner joint member formed to be mirror-image symmetrical with paired track grooves of an outer joint member with respect to a joint center plane at an operating angle of 0°. The track grooves of both the joint members each have a length corresponding to a maximum operating angle (θmax) required for a propeller shaft, and surface treatment is performed, for example, on a defined surface of each of the track grooves of the outer joint member so as to reduce frictional resistance (sliding resistance) against balls.
Public/Granted literature
- US20160146260A1 FIXED-TYPE CONSTANT VELOCITY UNIVERSAL JOINT Public/Granted day:2016-05-26
Information query
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