Hub unit with rotation speed sensor
US5827968A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1997 |
| Grant date | Oct 27, 1998 |
| Priority date | — |
| Expiry date | Sep 9, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2326/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A hub unit with rotation speed sensor comprising; PA1 a stationary outer ring member having an outer raceway formed thereon, a rotatable hub having an axially inner end with a male thread portion formed thereon, PA1 a inner ring member having an inner raceway formed thereon, and fittingly fixed onto the hub, a nut screwed on the male thread portion of the hub to axially retain the inner ring, a plurality of rolling members located between the outer raceway and the inner raceway, a cover fittingly fixed to the outer ring member at its opening end portion, an annular sensor supported by the cover so as to be located radially between the nut and the cover, a rotatable tone wheel made of magnetic material and fittingly fixed onto the inner ring, the sensor comprising an annular permanent magnet, a magnetic stator and a coil, so that the sensor is opposed generally circumferentially to part of the tone wheel with a small clearance therebetween.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.