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.
![17 mm x 30 mm x 14 mm ISB GE 17 ET 2RS plain bearings](https://m.buc-usap.com/uploaded_images/d8853-17-mm-x-30-mm-x-14-mm-isb-ge-17-et-2rs-plain-bearings.jpg)
- 17 mm x 30 mm x 14 mm ISB GE 17 ET 2RS plain bearings
- 5400 rpm
- 50.000 mm
![12,7 mm x 22,225 mm x 6,858 mm SIGMA GAZ 008 SA plain bearings](https://m.buc-usap.com/uploaded_images/d8850-12-7-mm-x-22-225-mm-x-6-858-mm-sigma-gaz-008-sa-plain-bearings.jpg)
- 12,7 mm x 22,225 mm x 6,858 mm SIGMA GAZ 008 SA plain bearings
- 4 x 7/8-9 UNC
- EPR 23
![ISB TSF.R 18 plain bearings](https://m.buc-usap.com/uploaded_images/d8854-isb-tsf-r-18-plain-bearings.jpg)
- ISB TSF.R 18 plain bearings
- 1030 mm
- 7.5 mm
![INA GE850-DO plain bearings](https://m.buc-usap.com/uploaded_images/d8847-ina-ge850-do-plain-bearings.jpg)
- INA GE850-DO plain bearings
- 7500 rpm
- 36000 N
![180 mm x 260 mm x 105 mm FBJ GE180ES plain bearings](https://m.buc-usap.com/uploaded_images/d8853-180-mm-x-260-mm-x-105-mm-fbj-ge180es-plain-bearings.jpg)
- 180 mm x 260 mm x 105 mm FBJ GE180ES plain bearings
- 136 kN
- 44.45 mm
![12 mm x 30 mm x 12 mm NMB RBM12E plain bearings](https://m.buc-usap.com/uploaded_images/d8849-12-mm-x-30-mm-x-12-mm-nmb-rbm12e-plain-bearings.jpg)
- 12 mm x 30 mm x 12 mm NMB RBM12E plain bearings
- M 10x20
- 0.055 kg
![AST AST850SM 4050 plain bearings](https://m.buc-usap.com/uploaded_images/d8846-ast-ast850sm-4050-plain-bearings.jpg)
- AST AST850SM 4050 plain bearings
- 1.50 mm
- 7500 rpm
![SKF SAL30C plain bearings](https://m.buc-usap.com/uploaded_images/d8850-skf-sal30c-plain-bearings.jpg)
- SKF SAL30C plain bearings
- 498 mm
- 5 mm
![100 mm x 210 mm x 51 mm LS GX100T plain bearings](https://m.buc-usap.com/uploaded_images/d8855-100-mm-x-210-mm-x-51-mm-ls-gx100t-plain-bearings.jpg)
- 100 mm x 210 mm x 51 mm LS GX100T plain bearings
- 0.86 kg
- 98.5 mm
![60 mm x 105 mm x 63 mm ISB GEG 60 ES plain bearings](https://m.buc-usap.com/uploaded_images/d8853-60-mm-x-105-mm-x-63-mm-isb-geg-60-es-plain-bearings.jpg)
- 60 mm x 105 mm x 63 mm ISB GEG 60 ES plain bearings
- 57000 N
- 5000 rpm
![32 mm x 52 mm x 32 mm INA GIHN-K 32 LO plain bearings](https://m.buc-usap.com/uploaded_images/d8847-32-mm-x-52-mm-x-32-mm-ina-gihn-k-32-lo-plain-bearings.jpg)
- 32 mm x 52 mm x 32 mm INA GIHN-K 32 LO plain bearings
- 0.875 in
- 32 kN
![Toyana SA12T/K plain bearings](https://m.buc-usap.com/uploaded_images/d8849-toyana-sa12t-k-plain-bearings.jpg)
- Toyana SA12T/K plain bearings
- 85.0000 mm
- 9000 rpm