Wenderoth, Lind & Ponack, L.L.P.
Constant velocity universal joint
An object of the present invention is to ensure the miniaturization, strength, durability, load-carrying capacity, and an operating angle of a constant velocity universal joint. Six balls 3 are disposed in the constant velocity universal joint. The ratio r1 (=PCDBALL/DBALL) between the pitch circle diameter PCDBALL (PCDBALL=2×PCR) of the ball 3 and the diameter DBALL thereof is set in a range of 1.5≦r1≦4.0. The ratio r2 (=DOUTER/PCDSERR) between the outside diameter DOUTER of an outer member 1 and the pitch circle diameter PCDSERR of serrations (or splines) 2d of an inner joint member 2 is set in a range of 3.0≦r2≦5.0.
NTN Corporation
F F Y F
F16D F16D Y10S F16D
inventional inventional additional additional
Minoru Kenta
Ishijima Yamazaki