FAG轴承是支承轴转动的组合件。其套圈和滚动体都是经过精密加工的。角接触球轴承在出厂前，为了保护滚道和滚动体表面不被锈蚀，在滚道和滚动体之间注入了防锈油或防锈脂。因此轴承安装前应进行清洗。用防锈油封存的轴承可用汽油或煤油直接清洗；用厚油或防锈油脂防锈的，须先用轻质矿物油，如10#机油或变压器油加热将油脂溶化冷却后，再用汽油或煤油清洗。两面带防尘盖或密封圈的轴承，在出厂前已加入了润滑脂，因此安装时不用再清洗。涂有润滑防锈两用润滑油的角接触球轴承，安装时也不需清洗。在清洗安装过程中，应严防外来异物落入轴承中，因微小磨粒都会引起滚动体与滚道之间的磨损、加大噪声和振动。
FAG bearing is a combination of supporting shaft rotation. The rings and rollers are precision machined. In order to protect the surface of raceway and rolling element from rust, anti-rust oil or anti-rust grease was injected between raceway and rolling element before the angular contact ball bearing was manufactured. Therefore, the bearing should be cleaned before installation. Bearings sealed with rust-proof oil can be cleaned directly with gasoline or kerosene; bearings sealed with heavy or rust-proof oils must be melted and cooled with light mineral oils, such as 10 # engine oil or transformer oil, and then cleaned with gasoline or kerosene. Bearings with dustproof covers or sealing rings on both sides have been greased before they are manufactured, so they need not be cleaned during installation. Angular contact ball bearings coated with lubricating and antirust lubricating oil do not need to be cleaned when installed. In the process of cleaning and installation, foreign bodies should be strictly prevented from falling into the bearing, because the small abrasive particles will cause wear and tear between the roller and raceway, increase noise and vibration.
FAG轴承的装拆主要通过两种途径。一是将过盈套圈压入轴上或压入轴承座孔内；一是通过加热轴承使其内径涨大，或冷却轴承使其外径缩小，将角接触球轴承轻易装在轴上或推入座孔内。当采用加压方式时，机械力或液压力通过专用装置将力直接作用于被装拆的座圈上，决不允许装卸力通过滚动体传递。否则会造成滚道和滚动体表面压痕、增大噪声和振动以致造成破坏。如果采用加热或冷却方法进行装拆，应严格控制加热温度或冷却温度。因为FAG轴承工作表面的强度受金属表面金相组织结构的影响、温度过高会造成回火效应；温度过底会引起金属表面的脆化。通常加热温度不得超过100℃，冷却最低温度不得底于零下50℃。同时还要考虑加热要均匀。
There are two ways to assemble and disassemble FAG bearings. One is to press the interference ring into the shaft or into the bearing seat hole; the other is to increase the internal diameter of the bearing by heating it, or to reduce the external diameter of the cooling bearing, so that the angular contact ball bearing can be easily installed on the shaft or pushed into the seat hole. When pressure is applied, mechanical or hydraulic forces act directly on the seat ring to be assembled and disassembled through a special device, and loading and unloading forces are never allowed to pass through the rolling body. Otherwise, it will cause raceway and rolling surface indentation, increase noise and vibration, resulting in damage. If heating or cooling methods are used for assembly and disassembly, the heating temperature or cooling temperature should be strictly controlled. Because the strength of the working surface of FAG bearing is affected by the metallographic structure of the metal surface, too high temperature will cause tempering effect; too low temperature will cause the embrittlement of the metal surface. Usually, the heating temperature should not exceed 100 degrees, and the lowest temperature should not be below 50 degrees below zero. At the same time, we should consider heating uniformity.
实践证明，FAG轴承安装不当是导致轴承过早损坏的原因之一。而装拆带过盈的套圈又是一件十分困难的事，因此在设计支承时，必须考虑角接触球轴承如何装拆和便于装拆的问题。对于重型机械大型轴承的装拆往往需要设计专用设备。如果高压油拆卸就需相应设计油路、管道及泵等。
Practice has proved that improper installation of FAG bearing is one of the reasons for premature bearing damage. It is very difficult to assemble and disassemble the ring with interference, so the problem of how to assemble and disassemble the angular contact ball bearing must be considered when designing the bearing. For heavy machinery and large bearings, assembly and disassembly often requires special equipment design. If the high-pressure oil is removed, it is necessary to design corresponding oil circuits, pipes and pumps.