Importance

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Abstract

A sensor assembly (10) for measuring a speed of a movable member. The sensor assembly (10) includes an enclosure (28) defining a cavity (30). The cavity (30) is defined by a blind hole extending into the enclosure (28). The enclosure (28) is positioned so as to be substantially stationary relative to the movable member. A sensor element (36) is received within the cavity (30) and is disposed to sense movement of the movable member. When the sensor element (36) is received within the cavity (30), a portion of the enclosure (28) is interposed between the sensor element (36) and the movable member. A seal (38) is operatively coupled to the sensor element (36) for substantially excluding contaminants from the cavity (30). A securement mechanism may be provided comprising a latch member (44) coupled to one of the sensor element (36) and the enclosure (28), and a complementary locking tab (46) coupled to the other one of the sensor element (36) and the enclosure (28) for engaging the latch member (44) to secure the sensor element (36) within the cavity (30). In a particular embodiment, a sensor assembly (10) as described herein is incorporated into a wheel bearing assembly (12) including a non-rotatable member (14) and a rotatable member (16) rotatably coupled to the non-rotatable member. In this embodiment, the sensor assembly (10) is coupled to the non-rotatable member (14) so as to be substantially stationary relative to the rotatable member (16).

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First Claim