轴承上的轴套和滑块怎么翻译

ushing,roller?
Principles of operation
There are at least six common principles of operation:
1.sliding bearings,usually called "bushings","journal bearings","sleeve bearings",or "plain bearings";
2.rolling-element bearings such as ball bearings and roller bearings;
3.jewel bearings,in which the load is carried by rolling the axle slightly off-center;
4.fluid bearings,in which the load is carried by a gas or liquid;
5.magnetic bearings,in which the load is carried by a magnetic field;
6.and flexure bearings,in which the motion is supported by a load element which bends.

bearing shell,
slide block/guide block

轴套 Bushing