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 AST090 21580 plain bearings](https://m.educandosobrearmas.com/uploaded_images/d14360-ast-ast090-21580-plain-bearings.jpg)
- AST AST090 21580 plain bearings
- Take Up Units
- 0.0
![SKF SALA70ES-2RS plain bearings](https://m.educandosobrearmas.com/uploaded_images/d14364-skf-sala70es-2rs-plain-bearings.jpg)
- SKF SALA70ES-2RS plain bearings
- Take Up Units
- 0.0
![45 mm x 53 mm x 40 mm INA ZGB 45X53X40 plain bearings](https://m.educandosobrearmas.com/uploaded_images/d14357-45-mm-x-53-mm-x-40-mm-ina-zgb-45x53x40-plain-bearings.jpg)
- 45 mm x 53 mm x 40 mm INA ZGB 45X53X40 plain bearings
- 84.84 mm
- 6-1/2 in
![SKF SC20ES plain bearings](https://m.educandosobrearmas.com/uploaded_images/d14358-skf-sc20es-plain-bearings.jpg)
- SKF SC20ES plain bearings
- Take Up Units
- 0.0
![AST GEEM20ES-2RS plain bearings](https://m.educandosobrearmas.com/uploaded_images/d14356-ast-geem20es-2rs-plain-bearings.jpg)
- AST GEEM20ES-2RS plain bearings
- Flange Block
- 0.0
![220 mm x 340 mm x 175 mm ISO GE 220 HCR-2RS plain bearings](https://m.educandosobrearmas.com/uploaded_images/d14361-220-mm-x-340-mm-x-175-mm-iso-ge-220-hcr-2rs-plain-bearings.jpg)
- 220 mm x 340 mm x 175 mm ISO GE 220 HCR-2RS plain bearings
- Pillow Block
- 0.0
![200 mm x 290 mm x 130 mm LS GE200ES-2RS plain bearings](https://m.educandosobrearmas.com/uploaded_images/d14358-200-mm-x-290-mm-x-130-mm-ls-ge200es-2rs-plain-bearings.jpg)
- 200 mm x 290 mm x 130 mm LS GE200ES-2RS plain bearings
- Pillow Block
- 0.0
![25 mm x 62 mm x 16 mm INA GE 25 AW plain bearings](https://m.educandosobrearmas.com/uploaded_images/d14363-25-mm-x-62-mm-x-16-mm-ina-ge-25-aw-plain-bearings.jpg)
- 25 mm x 62 mm x 16 mm INA GE 25 AW plain bearings
- Flange Block
- 0.0
![180 mm x 280 mm x 61 mm INA GE 180 SX plain bearings](https://m.educandosobrearmas.com/uploaded_images/d14355-180-mm-x-280-mm-x-61-mm-ina-ge-180-sx-plain-bearings.jpg)
- 180 mm x 280 mm x 61 mm INA GE 180 SX plain bearings
- Flange Block
- 0.0
![60 mm x 150 mm x 37 mm ISO GW 060 plain bearings](https://m.educandosobrearmas.com/uploaded_images/d14362-60-mm-x-150-mm-x-37-mm-iso-gw-060-plain-bearings.jpg)
- 60 mm x 150 mm x 37 mm ISO GW 060 plain bearings
- 3.0000 in
- 7.4400 in
![30 mm x 55 mm x 37 mm INA GIPR 30 PW plain bearings](https://m.educandosobrearmas.com/uploaded_images/d14361-30-mm-x-55-mm-x-37-mm-ina-gipr-30-pw-plain-bearings.jpg)
- 30 mm x 55 mm x 37 mm INA GIPR 30 PW plain bearings
- Flange Block
- 0.0
![20 mm x 23 mm x 20 mm SKF PCM 202320 M plain bearings](https://m.educandosobrearmas.com/uploaded_images/d14360-20-mm-x-23-mm-x-20-mm-skf-pcm-202320-m-plain-bearings.jpg)
- 20 mm x 23 mm x 20 mm SKF PCM 202320 M plain bearings
- Pillow Block
- 0.0