Jtekt Corporation

Kabushiki Kaisha Toyota Chuo Kenkyusho

Michiru Hirose

Yuya Yamamoto

Mamoru Tohyama

Takaaki Onizuka

Takuya Toda

Kenichi Hasegawa

Yasuhiro Ohmiya

Komatsugu Nishimura

Norikazu Sato

Yoshio Tateishi

A holder has a protrusion which protrudes from a side surface at a side opposite in an axial direction with respect to a rolling element held in a pocket toward the side opposite in the axial direction. An oil supply hole which penetrates through the holder from the side surface to a surface at a side of the rolling element in the axial direction is formed in the holder. When the holder rotates, the protrusion guides oil into the oil supply hole, and the oil is introduced from the side surface of the holder to the surface on the side of the rolling element.

Ball bearing

A rolling bearing includes an inner ring that rotates together with a rotary shaft, an outer ring, a plurality of tapered rollers, and an oil discharge portion provided on one side of the inner ring in the axial direction and that rotates together with the inner ring. The oil discharge portion has a wall portion in a circular plate shape that partially covers an annular space formed between the inner ring and the outer ring, and a plurality of blade portions that are provided on a side surface of the wall portion and that rotate together with the inner ring to cause lubricating oil to flow at least radially inward toward the rotary shaft, radially outward, or toward the one side in the axial direction.

Rolling bearing

Growing community of inventors

Yao, Japan

Michiru Hirose