一、密封问题目前,对汽车零件的性能要求越来越高。为减轻重量、提高性能所作的种种改进,都导致油封和其它零件结构日益复杂,其动态应力也越来越高。本文论述当轴的径向跳动超过其通常极限时所产生的密封问题,并介绍新型油封的结构。轴的径向跳动超差,往往是由于设计 First, the sealing problem At present, the performance requirements for auto parts getting higher and higher. The various improvements made to reduce weight and improve performance have led to the ever-increasing complexity of the oil seal and other parts and the increased dynamic stresses. This article addresses the seal issues that arise when the radial runout of the shaft exceeds its normal limit and describes the structure of the new oil seal. Radial runout of the shaft is often due to design