| 摘要 |
<p>A vehicular wheel bearing assembly with relatively rotatable bearing rings (11, 10) and rolling elements (12) therebetween incorporates a sensing arrangement for sensing speed or position. The sensing arrangement is composed of pre-formed annular encoders (21, 23) with alternate magnetic north and south poles which are offset both radially and axially relative to the rotational axis defined by the bearing rings (10, 11). The encoders (21, 23) are mounted on different components of the assembly, for example on a cage (19) and one of the bearing rings (10) which is intended to rotate. Sensors (28, 29) in a housing (25) fitted to the outer bearing ring (11) intended to remain stationary detect the movement of the poles of the respective encoders (21, 23) to generate electrical signals which can be combined or processed separately. In an alternative embodiment, only one encoder mounted on the cage is used, with a sensor on another part of the assembly.</p> |
