Oil seal and drive axle oil seal structure

The oil seal comprises an annular oil seal body, a main lip and an auxiliary lip are formed on the hole wall of an inner hole of the oil seal body, the main lip is located on the inner side of the auxiliary lip, and a plurality of dustproof lips distributed at intervals in the radial direction of the inner hole are formed on the outer side face of the oil seal body. According to the oil seal, the main lip and the auxiliary lip are arranged in the inner hole of the oil seal body, the main lip is located on the inner side of the auxiliary lip, the dustproof lips are arranged on the outer side face of the oil seal body in the radial direction of the inner hole at intervals, and when the oil seal is applied, the main lip, the auxiliary lip and the dustproof lips can form multiple seals; a good dustproof sealing effect can be achieved, and the problem that the main lip is abraded and loses efficacy due to silt invasion can be effectively prevented. 本实用新型提供了一种油封及驱动桥油封结构，本实用新型的油封包括呈环形的油封本体，油封本体的内孔的孔壁上形成有主唇和副唇，主唇位于副唇