一、概述我国铁路各种车辆由滑动轴承向滚动轴承化迈进,并形成系列化和标准化,是发展的必然趋势。但目前,森林铁路和地方窄轨铁路的车辆绝大部份还是轴瓦形式的滑动轴承,虽从80年代初开始了滚动轴承化的研究和试验,但至今还未形成一个统一的方案。 First, an overview of China’s railway vehicles from rolling bearings to rolling bearing forward, and the formation of serialization and standardization, is the inevitable trend of development. However, at present, most of the vehicles on the forest railway and the local narrow-gauge railway are still plain bearing bush bearings. Although rolling bearing research and testing began in the early 1980s, a unified solution has not yet been formed.