Bearing device for axle

Abstract

Abstract PURPOSE:To facilitate adjustment of gap between inner and outer rings of the device in the caption so as to improve productivity of a vehicle body assembly by disposing a pulse outputting ring on the flange root portion of the inner race, while providing a sensor for detecting the rotational speed of the pulse outputting ring on the outer race. CONSTITUTION:A pulse outputting ring 6 is disposed on the flange root portion of an inner race 1 fixed to a wheel through a bolt 5 in a flange 3. The ring 6, having a seal sliding contact portion 6b and plural projections 6a formed into a bevel gear shape with a fixed pitch, is made of a ferromagnetic material with its polygonal cross section. In addition, an outer race 8 fixed to a vehicle body at a flange portion 8a is engaged with the inner race 1 and a ring member 10 fitted around the inner race 1 through rolling bodies 11, 12, respectively. And thereat, on the outer race 8 is formed a conical face 8d facing to the projections 6a of the ring 6, and further, a proximity switch 17 is disposed on the conical face 8d part, and as well, around the outer race 8 on the wheel side is provided a bearing seal 18 in sliding-contact with the seal sliding contact portion 6b.

Inventors

• 👤 Takashi Okumura
• 👤 Makoto Nohara

Bibliographic Details