Aktiebolaget Skf

Marco Romanetto

Fausto Morello

Marco Falossi

Luca Donetti

Daniele Duch

Paolo A Re

Francesco Lamboglia

Stefano Richaud

Antonio Ruiu

Fabio Marchetti

Thomas Niestroj

Julian Veeh

Dario Ricci

Daniel Back

Giancarlo Branca

A hub-bearing unit with an axis of rotation includes a stationary, radially external ring, a radially internal flanged hub, rotatable about the axis and including a first shoulder, a second shoulder, a first relief groove, and a section (SR) radially opposite the first relief groove. At least one row of rolling bodies is interposed between the external ring and the flanged hub. The hub-bearing unit includes a first radial ball bearing and a second radial ball bearing interposed between a stem of a constant velocity joint and the flanged hub and opposite the first shoulder and the second shoulder. The second ball bearing mounts inside a seat of the flanged hub and a spacer axially abuts the second shoulder and mounts inside the seat between the second shoulder and the second ball bearing. The seat includes a second relief groove formed in an axially external position relative to section (SR).

Hub-bearing unit for a wheel of a motor vehicle

A bearing unit having an axis of rotation (X) for a wheel hub assembly for motor vehicles includes stationary radially outer ring, a rotatable wheel hub or first radially inner ring, a rotatable second radially inner ring having an axially external first axial contact edge, an axially internal second axial contact edge having a radially external first contact surface configured to abut a surface of the first radially inner ring, a radially internal second contact surface, and a relief groove interposed radially between the first contact surface and the second contact surface, two rows of rolling bodies interposed between the radially outer ring and the second radially inner ring, and a joint including a bell, the second contact surface contacting a surface of the bell and axial locks the radially inner ring, and the relief groove reducing contact between the second contact edge and the surface of the bell.

Optimized wheel hub assembly

A clamping system for a hub bearing assembly includes a screw element configured to engage with a threaded section formed on a flanged hub of a bearing unit. The screw element includes a flange-shaped head configured to cooperate with an annular element of the bearing unit and axially constrain the flanged hub and the annular element, an elastic ring, and at least one annular seat for the elastic ring. The at least one annular seat is formed radially on the inside of the annular element or on the outside of the flange-shaped head along a radially outer peripheral edge of the flange-shaped head.

Hub bearing constant velocity joint

In a vehicle suspension assembly (), a connection system () between a hub bearing unit () and a suspension upright or knuckle (), including: a radially outer lateral cylindrical surface () of a radially outer ring or element () of the hub bearing unit, configured for interference coupling with a radially inner lateral cylindrical surface () of a reception seat () of the suspension upright or knuckle; a pair of, or three, lugs () that protrude radially in cantilever fashion from the radially outer ring or element of the hub bearing unit, each being provided with an axial through hole (); a frontal surface () of the suspension upright or knuckle, configured for receiving the lugs () in axial abutment; and screws () fitted in a through manner through the axial holes of the lugs and screwed into respective threaded holes () formed in the suspension upright or knuckle, on the frontal surface ().

Suspension unit for a vehicle

A wheel hub bearing unit including an outer ring, rolling bodies and an inner ring provided with a flange at a first end thereof, the inner ring being made with a sliding surface for sealing lips of a sealing device arranged so as to protect the rolling bodies, defined by a metal insert formed integrally with the first end and arranged astride a base portion of the flange and a portion of the first end immediately adjacent to the base portion of the flange. The metal insert has a thickness of between 0.2 and 2 mm and being made, using a material different from the material with which the inner ring is manufactured and consisting of an austenitic stainless steel, by means of additive manufacturing.

Method of manufacturing a wheel hub bearing unit for vehicles and associated wheel hub bearing unit

A wheel hub having an axis of symmetry and including a flange transverse to the axis of symmetry and provided with a plurality of fixing holes for attaching a wheel, a tubular body extending axially from the flange for supporting a rolling bearing, and a centering device arranged on a side of the flange opposite to that of the tubular body and in a position concentric with the axis of symmetry of the wheel hub, for retaining a wheel rim or a brake disc. The centering device being provided with a given number of flattened areas extending circumferentially and axially on a respective continuous tubular body projecting axially from the flange.

Wheel hub with centring means

A flanged wheel hub for wheel hub bearings, the wheel hub having a flange provided with a plurality of threaded through holes and, for each threaded through hole, a respective radial arm, which has a respective axial thickness (SAB) to act as a strengthening element for the flange, at least at the position of the threaded through holes, the wheel hub being produced by forging with the flange and the arms made in one piece, and also having, for each threaded through hole, an annular boss, which is also forged in one piece with the wheel hub and is arranged around, and penetrated by, the corresponding threaded through hole for the purpose of increasing the mechanical strength characteristics of the wheel hub.

Growing community of inventors

Pianezza, Italy

Marco Romanetto