Nsk Corporation

Aya Kikuchi

Koichi Yamamoto

Yoichi Matsumoto

Seigou Urakami

Takashi Fujioka

Kouichi Kakuda

Hirokazu Yajima

In a wheel support structure for a motorcycle, a magnetic encoderfor detecting rotational speed is mounted and fastened to the inner circumferential surface of a cylindrical section, which extends outward in the axial direction from the outer ring, of an encoder installation platethat is attached to the end section in the axial direction of the outer ringof the one of the rolling bearingson the side toward the other rolling bearing, or is mounted and attached to the side surface toward the side of the other rolling bearingof a slinger, which is attached to the end section in the axial direction of the outer ringof the one of the rolling bearingson the side toward the other rolling bearingsuch that the end surface on the inner diameter side closely faces the outer surface of the inner ringto form labyrinth space. Preferably, a rotation restraining memberis fastened to the outer circumferential surface of the outer ring, which is the rotating ring, and there is engagement between this rotation restraining memberand the inner circumferential surface of the hub, which is the rotating member.

Wheel support structure for motorcycle

There is adopted a constitution of arranging a spacerat a shaft center portion and arranging a retainerand a roller(cage & roller) at two sides thereof in order to prevent the roller (roller) from being rolled at the center portion in an axial direction of the shaft maximizing an amount of bending the shaft. At the double side rows, the bending of the shaft is not as large as that of the center portion and therefore, the roller (roller) is not hampered from being rolled smoothly.

Radial needle-like roller bearing and pinion shaft

Growing community of inventors

Kanagawa, Japan

Aya Kikuchi