Invention Grant
- Patent Title: Fixed type constant velocity universal joint
- Patent Title (中): 固定式等速万向节
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Application No.: US12522981Application Date: 2008-01-07
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Publication No.: US08342971B2Publication Date: 2013-01-01
- Inventor: Masazumi Kobayashi , Kisao Yamazaki , Hisaaki Kura , Shin Tomogami
- Applicant: Masazumi Kobayashi , Kisao Yamazaki , Hisaaki Kura , Shin Tomogami
- Applicant Address: JP Osaka
- Assignee: NTN Corporation
- Current Assignee: NTN Corporation
- Current Assignee Address: JP Osaka
- Agency: Wenderoth, Lind & Ponack, L.L.P.
- Priority: JP2007-024334 20070202
- International Application: PCT/JP2008/050046 WO 20080107
- International Announcement: WO2008/096557 WO 20080814
- Main IPC: F16D3/224
- IPC: F16D3/224

Abstract:
A fixed type constant velocity universal joint secures smooth rotation and reduces a load on a cage even at a large operating angle and when bearing large torque. The universal joint includes an outer joint member having an inner spherical surface in which track grooves are circumferentially formed in an axial direction and an inner joint member having an outer spherical surface in which track grooves paired with the track grooves of the outer joint member are circumferentially formed in the axial direction and multiple outer spherical surface portions circumferentially arranged. Balls are interposed between the track grooves of the outer and inner joint members for transmitting torque. A cage is interposed between the inner spherical surface and the outer spherical surface for retaining the balls. A spherical surface angle of the outer spherical surface on a joint opening side is set to 12.5° or more.
Public/Granted literature
- US20100069164A1 FIXED TYPE CONSTANT VELOCITY UNIVERSAL JOINT Public/Granted day:2010-03-18
Information query
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