PINION SHAFT SUPPORTING BEARING UNIT

Japanese Patent JP3757309

B2

PROBLEM TO BE SOLVED: To provide a pinion shaft supporting bearing unit capable of restraining irregularity of a preload and irregularity of the pinion height after incorporation in the pinion shaft supporting bearing unit by outwardly combining double row conical roller bearings having high load capacity.
SOLUTION: An inner race raceway surface 12a of a head side (small gear 11 forming side) conical roller bearing of a pinion shaft 1 is integrally formed on the pinion shaft 1, a small collar corresponding to the inner race raceway surface 12a is not formed, the small end side moving end of the raceway surface 12a of a conical roller 3 and a cage 3a incorporated into the raceway surface 12a is regulated by the other conical roller bearing inner race 2 composed of a separate member, the irregularity of the preload and the irregularity of the pinion height by integration of the raceway surface 12a are restrained, and a calking process of the cage 3a incorporated into the inner race raceway surface 12a is obviated so that the pinion shaft supporting bearing unit can be easily assembled.

WO/2009/020087	DOUBLE-ROW ROLLER BEARING
WO/2007/148436	BEARING DEVICE FOR WHEEL
JP4244955	How to assemble a hub unit for automobiles

Kunihiko Yokota
Masanori Soka

JP2000155813A

March 22, 2006

May 26, 2000

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JTEKT Corporation

F16C19/38; F16C33/58; F16H48/00; F16H48/06; F16H48/38; (IPC1-7): F16H48/00; F16C19/38; F16C33/58

JP8210471A
JP2000094902A
JP10009258A
JP8105449A
JP5096551U
JP62037619U

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