Nsk Corporation

Daisuke Himeda

Seigou Urakami

Tomoharu Sugiman

Takao Katougi

Takashi Kato

Toshiharu Honda

Katsuhiro Ikezawa

Juji Harada

Katsushiro Ikezawa

A rolling bearing fixing device includes at least one bearing having mutually rotatable inner and outer rings, a housing having at least one fitting hole into which the bearing is fitted and a bolt insertion hole, a pair of fixing plates having at least one large-diameter hole and a bolt insertion hole; and a bolt inserted from one axial end into the bolt insertion hole of one fixing plate, the bolt insertion hole of the housing, and the bolt insertion hole of the other fixing plate, and connects the housing with the pair of fixing plates. Both axial end parts of the outer ring are held by the pair of fixing plates in the axial direction, the inner ring is positioned further inwardly of the large-diameter hole of the fixing plates in the radial direction and the inner ring is rotatable with respect to the fixing plates.

Bearing fixing device and bearing unit

A retainer plateis fitted on a smaller-diameter step portionof an outer ring, and a retaining ringfitted on the smaller-diameter step portionis engaged with retaining projectionsformed on an inner circumferential surface of a fitting holeformed through the retainer plate, thereby preventing the retainer platefrom falling-off from the smaller-diameter step portion. The structures and shapes of the various portions are so determined that working or machining can be easily effected to form these portions so as to overcome a problem encountered with the conventional structure.

Rolling bearing unit for rotation support unit

Growing community of inventors

Kanagawa, Japan

Daisuke Himeda