摘要:
A hub for a motor vehicle wheel provides a cylindrical portion that extends in an axial direction, and a flange extending in a radially outer direction from an axially outer end of the cylindrical portion. The hub includes a core of metallic material which extends into the cylindrical portion and in the flange of the hub, and a covering body of plastic material applied over the core.
摘要:
A hub unit includes a hub of light material forming a cylindrical portion, a flange and a radial recess having a surface facing the flange, and two bearing rings axially aligned around the cylindrical portion of the hub; a sleeve locking device is radially interposed between the cylindrical portion of the hub and the bearing rings, and comprises a retaining portion engaged in the radial recess of the hub, a terminal edge which preloads the bearing rings, and one or two cuts extending in an axial direction.
摘要:
A hub bearing assembly includes a hub made of lightweight metallic material and forming a cylindrical portion, on which a tubular inner ring providing a raceway is mounted; a second inner ring is fixed on the first tubular inner ring and provides a second raceway; a cylindrical interstice is formed between the cylindrical portion of the hub and the tubular inner ring and contains a bonding brazing material which integrally joins the hub to the first tubular inner ring.
摘要:
A bearing-hub assembly having a rolling bearing provided with a stationary radially outer ring, at least one rotatable radially inner ring and at least one row of rolling bodies is provided. The bearing-hub assembly includes a light alloy hub, provided with a flanged portion and a cylindrical housing. The cylindrical housing is axially located inside the radially inner ring and is provided with an external lateral surface having a complementary shape with an internal lateral surface of the radially inner ring.
摘要:
A hub bearing assembly includes a hub of light metallic material forming a cylindrical portion, on which an inner tubular ring having a raceway is mounted; on the first inner tubular ring a second inner ring having a second raceway is fastened; formed between the cylindrical portion of the hub and the inner tubular ring is a cylindrical interstice containing a brazing bonding material or a structural adhesive which integrally binds the hub to the first inner tubular ring.
摘要:
A roller bearing including an outer ring, at least one inner ring and a plurality of rolling bodies inserted between the outer ring and the inner ring. The outer ring presents an osculation of between 0.51 and 0.56 and the inner ring presents an annular race having a bottom surface delimited by an annular relief (16) including a cylindrical section (18) with a greater diameter than that of the bottom surface (12), a first convex curved section (19) having a pre-established radius of curvature (R1) and which connects with continuity the annular bottom surface (12) of the first annular race with the cylindrical section (18), a second convex curved section (20) which connects with continuity with the cylindrical section (18) and a third concave curved section (21) that connects with continuity with the second section (20).
摘要:
A hub unit is provided with a hub made of an aluminum alloy for plastic processing, which forms, in a single piece, an axially extending cylindrical portion and a radial flange; two bearing rings are mounted axially aligned around the cylindrical portion, an axially inner edge of the cylindrical portion is plastically deformed in a radially outer direction against the axially inner bearing ring.
摘要:
A bearing-hub assembly having a rolling bearing provided with a stationary radially outer ring, at least one rotatable radially inner ring and at least one row of rolling bodies is provided. The bearing-hub assembly includes a light alloy hub, provided with a flanged portion and a cylindrical housing. The cylindrical housing is axially located inside the radially inner ring and is provided with an external lateral surface having a complementary shape with an internal lateral surface of the radially inner ring.
摘要:
A hub bearing assembly includes a hub made of lightweight metallic material and forming a cylindrical portion, on which a tubular inner ring providing a raceway is mounted; a second inner ring is fixed on the first tubular inner ring and provides a second raceway; a cylindrical interstice is formed between the cylindrical portion of the hub and the tubular inner ring and contains a bonding brazing material which integrally joins the hub to the first tubular inner ring.
摘要:
A method for axially preloading a bearing hub assembly having a rotatable hub, provided with rolling tracks and a bearing unit having a stationary radially outer ring, provided with rolling tracks, and a double row of rolling bodies disposed between the radially outer ring and the hub. The method requires the use of a bias unit and provides the following steps: a) feeding to an assembly station a hub bearing assembly, already assembled; b) verifying the value of the interference (C) between the radially outer ring and the bias unit; c) exerting an axial force (F) radially on the outer ring for the bias unit to deform under compression the radially outer ring that in turn will transmit a force to the rolling bodies via the raceways.