Driving shaft having splined male and female portions

Details Driving shaft having splined male and female portions Driving shaft having splined male and female portions

1995-03-13

1997-12-16

Stodola, Daniel P.

Rotary shafts, gudgeons, housings, and flexible couplings for ro

Coupling facilitates relative axial motion between coupled...

F16C 303

Patent

active

056978502

ABSTRACT:
A driving shaft having splined male and female shafts. The spline tooth pattern of the male shaft seen in a cross-section comprises an inclined portion substantially similar to those of a symmetrical spline tooth pattern of a conventional male shaft, and an outwardly convex and gently curved portion starting from the outer end of the inclined portion and terminating in a smaller diameter portion at the bottom of the tooth pattern. The radius of the smaller diameter portion and the tooth width at the bottom of the tooth pattern are larger than those in the symmetrical spline tooth pattern of the conventional male shaft, thereby obtaining an improved driving shaft to transmit greater rotating torque. The spline sliding portion of the female shaft is formed from a hollow tube by press-forming in a manner that the outer diameter of the press-formed portion is larger than that of a hollow blank tube, thereby increasing the torque transmission diameter to reduce surface pressure resulting in prolonged service life.

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