Plain bearings
A plain bearing, or more commonly sliding bearing and slide bearing (in railroading sometimes called a solid bearing, journal bearing, or friction bearing[citation needed]), is the simplest type of bearing, comprising just a bearing surface and no rolling elements. Therefore, the journal (i.e., the part of the shaft in contact with the bearing) slides over the bearing surface. The simplest example of a plain bearing is a shaft rotating in a hole. A simple linear bearing can be a pair of flat surfaces designed to allow motion; e.g., a drawer and the slides it rests on or the ways on the bed of a lathe.
Plain bearings, in general, are the least expensive type of bearing. They are also compact and lightweight, and they have a high load-carrying capacity.
![AST AST650 10012060 plain bearings](https://m.kohsamuihotels.org/uploaded_images/d12668-ast-ast650-10012060-plain-bearings.jpg)
- AST AST650 10012060 plain bearings
- 75 mm
- 11600 kgf
![AST AST20 1520 plain bearings](https://m.kohsamuihotels.org/uploaded_images/d12668-ast-ast20-1520-plain-bearings.jpg)
- AST AST20 1520 plain bearings
- 0.5000 in
- 13500 lb
![AST AST40 F08055 plain bearings](https://m.kohsamuihotels.org/uploaded_images/d12670-ast-ast40-f08055-plain-bearings.jpg)
- AST AST40 F08055 plain bearings
- 5.4375 in
- ZS14NEW
![304,8 mm x 457,2 mm x 228,6 mm LS GEZ304ES-2RS plain bearings](https://m.kohsamuihotels.org/uploaded_images/d12668-304-8-mm-x-457-2-mm-x-228-6-mm-ls-gez304es-2rs-plain-bearings.jpg)
- 304,8 mm x 457,2 mm x 228,6 mm LS GEZ304ES-2RS plain bearings
- 1/2 in
- +10 to +220 °F
![AST ASTT90 12560 plain bearings](https://m.kohsamuihotels.org/uploaded_images/d12670-ast-astt90-12560-plain-bearings.jpg)
- AST ASTT90 12560 plain bearings
- 0.7500 in
- 1400 lb
![Toyana GE 050 XES plain bearings](https://m.kohsamuihotels.org/uploaded_images/d12670-toyana-ge-050-xes-plain-bearings.jpg)
- Toyana GE 050 XES plain bearings
- 1.3750 in
- 5820 lbf
![AST ASTT90 20590 plain bearings](https://m.kohsamuihotels.org/uploaded_images/d12660-ast-astt90-20590-plain-bearings.jpg)
- AST ASTT90 20590 plain bearings
- 3
- 24 kN
![AST AST40 F22150 plain bearings](https://m.kohsamuihotels.org/uploaded_images/d12670-ast-ast40-f22150-plain-bearings.jpg)
- AST AST40 F22150 plain bearings
- 2.5500 in
- Exceptional Bearing Protection, Rotating Applications, Pumps, Gearboxes, Motors, Energy Efficient Applications, Primary Metals Industry, Steel Industry, Aluminum Industry, Pulp and Paper Industry, Che
![ISB TAPR 704 DO plain bearings](https://m.kohsamuihotels.org/uploaded_images/d12660-isb-tapr-704-do-plain-bearings.jpg)
- ISB TAPR 704 DO plain bearings
- Straight
- Uncoated
![IKO POS 6 plain bearings](https://m.kohsamuihotels.org/uploaded_images/d12668-iko-pos-6-plain-bearings.jpg)
- IKO POS 6 plain bearings
- 1.1875 in
- BEO