Back to results
US 9,511,628 B2Granted
Lightweight hub unit with integrated bearing rings and process for its manufacture
AssigneeAktiebolaget Skf
InventorsDavide Antonio Olivieri, Laura Sguotti
Life of this patent
Estimating the term…
Abstract
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.
Claims11
A hub unit with integrated bearing rings, the hub unit comprising:
- a single-piece hub including:
- a cylindrical portion extending in an axial direction,
- a flange extending radially outwardly from an axially outer end of the cylindrical portion, and
- a first and a second bearing ring axially aligned and mounted around the cylindrical portion, wherein the second bearing ring is axially inner with respect to the first bearing ring and provides an end face facing an axially inner direction;
- the cylindrical portion forming an axially inner end edge plastically deformed in a radially outer direction against the end face of the second bearing ring;
- wherein the hub is made of a wrought aluminum alloy, and
- wherein the first bearing ring and the second bearing ring are configured to be slidably mounted on the cylindrical portion.
4 more elements
A method of manufacturing a hub unit with integrated bearing rings, the method comprising:
- providing a single-piece hub made of a wrought aluminum alloy including a cylindrical portion extending in an axial direction and a flange extending radially outwardly from an axially outer end of the cylindrical portion,
- mounting a first bearing ring and a second bearing ring in axial alignment around the cylindrical portion, wherein the second bearing ring is axially inner with respect to the first bearing ring and provides an end face facing an axially inner direction;
- and
- plastically deforming an axially inner edge of the cylindrical portion in a radially outer direction against the end face of the second bearing ring,
- wherein mounting a first bearing ring and a second bearing ring in axial alignment around the cylindrical portion comprises sliding the first bearing ring axially onto the cylindrical portion and sliding the second bearing ring axially onto the cylindrical portion.
2 more elements
Dependencies are inferred from the claim text.