| 摘要 |
<p>A wheel speed detecting device with a countermeasure against entrance of mud water. An annular recess groove (22) is provided in an outer circumference (21) of an end portion of a hub (12) on a sensor side. A cup-shaped flange portion (23) extends from the sensor supporting member (18), the flange portion (23) covering the annular recess groove (22) while maintaining a predetermined gap (T1) between the flange portion (23) and the outer circumference (21) of the end portion of the hub (12). Entrance of mud water can be effectively prevented by making the gap (T1) small. Mud water still entering the gap (T1) is trapped in the annular recess groove (22).</p> |
