Nsk Corporation

Tomoharu Sugiman

Takao Katougi

Seigou Urakami

Daisuke Himeda

Takashi Kato

Kinji Yukawa

Tetsu Takehara

Taketoshi Chifu

Toshiharu Honda

Katsuhiro Ikezawa

Juji Harada

Katsushiro Ikezawa

There is provided an assembling method of a bearing unit which has a bearing having an outer ring and a retainer plate having a retainer hole for holding the outer ring. The assembling method has pressing a plurality of portions in a circumferential direction of a circumferential edge of an inner circumferential portion of the retainer hole of the retainer plate in an axial direction so as to form engagement pawls and moving the engagement pawls of the retainer plate from one axial end of the outer ring to a engagement groove formed on an outer circumferential surface of the outer ring so as to engage the engagement pawls of the retainer plate with the engagement groove of outer ring.

Assembling method of bearing unit

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

A hub unit for wheel is described, with an outer ring having two bearing tracks on its inner circumferential surface, and a hub having a wheel mount flange on the outer end side and an end portion on the axially vehicle center side. The hub has a first bearing track corresponding to the axially vehicle outer end side bearing track of the outer ring, and an inner ring element fitted on the end portion side of the hub. The inner ring element has on its outer circumference a second bearing track opposed to the axially vehicle center side bearing track of the outer ring, and is fixed on the end portion by plastically deforming the end portion of the hub radially outwardly. Rolling members are provided between the two bearing tracks of the outer ring and the first and second bearing tracks.

Hub unit for wheel

Growing community of inventors

Kanagawa, Japan

Tomoharu Sugiman