Wheel hub assembly provided with an innovative sensor holder

Patent metadata

Field	Value
Publication number	US-11072202-B2
Application number	US-201916372627-A
Country	US
Kind code	B2
Filing date	Apr 2, 2019
Priority date	Apr 18, 2018
Publication date	Jul 27, 2021
Grant date	Jul 27, 2021

Abstract

A wheel hub assembly for motor vehicles, having a rotating hub and a bearing unit. The bearing unit including a radially outer ring provided with respective radially outer raceways, a radially inner ring provided with respective radially inner raceways, a plurality of rolling bodies positioned between the corresponding inner and outer raceways, a sensor for detecting the speed of rotation and the associated sensor holder. A cavity is formed in the radially outer ring of the bearing unit and a protuberance is formed on the outer mounting diameter of the sensor holder, the protuberance being able to be inserted inside the cavity to perform an anti-rotation retention function and ensure the mechanical orientation of the sensor holder.

First claim

What is claimed is:

1. A wheel hub bearing configured for a wheel of a motor vehicle, comprising:
a rotatable hub, and
a bearing unit having:
a radially outer ring provided with respective radially outer raceways,
a radially inner ring having respective radially inner raceways,
a plurality of rolling bodies positioned respectively between the inner and the outer raceways,
a sensor holder provided on the rotatable hub, the sensor holder having an annular external mounting diameter,
a sensor configured for detecting the speed of rotation of the wheel, wherein the sensor is held by the sensor holder,
a seat provided in the radially outer ring and configured to have an annular diameter onto which the annular external mounting diameter of the sensor holder is mounted,
a cavity formed as an axially oriented blind hole at a mechanical orientation reference point on the seat of the radially outer ring of the bearing unit, and
a protuberance provided on the sensor holder and configured to fit inside the cavity to provide an anti-rotation retention function and configured to provide mechanical orientation of the sensor holder.

2. The wheel hub assembly according to claim 1 , wherein the cross section of the protuberance is less than 50% of the cavity cross section.

3. The wheel hub assembly according to claim 1 , wherein the sensor holder is made of plastic material.

Assignees

• Skf Ab

Inventors

• Bertola Maurizio
• Fischer Dominik
• Re Paolo A

Classifications

• B60B27/0068 Primary

  the element being a sensor · CPC title

• F16C17/24

  with devices affected by abnormal or undesired positions, e.g. for preventing overheating, for safety · CPC title

• F16C2226/76

  with tongue and groove or key and slot · CPC title

• F16C19/185

  with two raceways provided integrally on a part other than a race ring, e.g. a shaft or housing · CPC title

• F16C2326/02

  Wheel hubs or castors · CPC title