Sensor Bearing Assembly for a Pulley

摘要

A sensor bearing assembly rotatably couples a pulley sheave with a shaft and includes an inner member with a central bore receiving a portion of the shaft, two axially spaced inner raceway surfaces and a central portion between the raceways. An outer member is disposed about the inner member and disposeable within the sheave bore to rotatably couple the sheave with the shaft. The outer member has two axially spaced outer raceway surfaces disposed about the two inner raceway surfaces and a central portion between the outer raceways and disposed about inner member central portion to define an annular cavity. An annular detection member is disposed within the annular cavity and coupled with the outer member and a sensor is disposed within the annular detection member and connected with the inner member central portion. The sensor is configured to sense angular displacement of the detection member about the bearing axis.

主权项

1. A sensor bearing assembly for rotatably coupling a pulley sheave with a shaft, the sheave having a bore and the shaft having an axis, the sensor bearing assembly having an axis and comprising:
a generally annular inner member with a central bore sized to receive a portion of the shaft so as to mount the bearing to the shaft, the inner member having first and second axially spaced inner raceway surfaces and a central portion extending generally axially between the two inner raceway surfaces; a generally annular outer member disposed about the inner member and disposeable within the sheave bore, the outer member being coupleable with the sheave to rotatably couple the sheave with the shaft, the outer member having first and second, axially spaced outer raceway surfaces each disposed about a separate one of the first and second inner raceway surfaces and a central portion extending generally axially between the two outer raceway surfaces, the outer member central portion being disposed generally about the inner member central portion so as to define an annular cavity; a first set of rolling elements disposed between the first inner and outer raceway surfaces and a second set of rolling elements disposed between the second inner and outer raceway surfaces; a generally annular detection member disposed within the annular cavity and coupled with the outer member; and a sensor disposed within the annular detection member and connected with the inner member central portion, the sensor being configured to sense angular displacement of the detection member about the bearing axis.