| 摘要 |
A seal (16) has a body (38), a leg (40) and first and second sealing areas (42, 44). The seal (16) is used in a seal assembly (10) having first and second members (12, 14) such as, for example, a frame portion (20) and steering knuckle (27) of a work vehicle. Apparatus (28) such as a bearing (30) supports the knuckle (27) in rotation relative to a king pin (24) of the frame portion (20). The foreign matter can enter between the frame portion (20) and steering knuckle (27) and interfere with vehicle steering. In the assembly (10), the sealing surfaces (42, 44) contact substantially perpendicular surfaces (32, 34) of the frame portion (20) to block passage of foreign matter to the bearing (30). A second end portion (54) of the seal leg (40) can be controllably deflectable in order to permit overfill of lubricant to pass from the bearing cavity between the frame portion (20) and steering knuckle (27). |
