The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 05, 2005
Filed:
May. 03, 2002
Michio Iihara, Iwata, JP;
Yoshihiro Sagisaka, Iwata, JP;
Masazumi Kobayashi, Iwata, JP;
Akio Sakaguchi, Iwata, JP;
Ryuma Mano, Iwata, JP;
Kikuo Maeda, Kuwana, JP;
Michio Iihara, Iwata, JP;
Yoshihiro Sagisaka, Iwata, JP;
Masazumi Kobayashi, Iwata, JP;
Akio Sakaguchi, Iwata, JP;
Ryuma Mano, Iwata, JP;
Kikuo Maeda, Kuwana, JP;
NTN Corporation, Osaka, JP;
Abstract
A constant velocity universal joint for use with a propeller shaft which reduces its weight and size as well as facilitates assembling a stub shaft, thereby reducing the number of parts used and improving rotational balance. The universal joint, comprising: an outer ring with a cup-shaped enlarged diameter portion having track grooves formed on an inner peripheral surface and with a hollow reduced diameter portion integrated with the enlarged diameter portion; an inner ring having track grooves formed on an outer peripheral surface; balls, interposed between the track grooves of the inner and outer rings, for transmitting torque; a cage, accommodated in an annular space between the inner and outer rings, for holding the balls. The universal joint makes possible to form a unit provided with a stub shaft, having a shaft portion inserted from an open end portion of the enlarged diameter portion of the outer ring to mate with the inner ring to enable torque transmission and having an enlarged diameter portion on an end portion extending from the shaft portion, and provided with a boot, attached to the open end portion of the enlarged diameter portion of the outer ring and the shaft portion of the stub shaft, for sealing the joint.