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.
![90 mm x 120 mm x 65 mm ISB TAPR 490 N plain bearings](https://m.kohsamuihotels.org/uploaded_images/d12668-90-mm-x-120-mm-x-65-mm-isb-tapr-490-n-plain-bearings.jpg)
- 90 mm x 120 mm x 65 mm ISB TAPR 490 N plain bearings
- 1.5000 in
- 3210 lbf
![100 mm x 150 mm x 70 mm ZEN GE100ES-2RS plain bearings](https://m.kohsamuihotels.org/uploaded_images/d12667-100-mm-x-150-mm-x-70-mm-zen-ge100es-2rs-plain-bearings.jpg)
- 100 mm x 150 mm x 70 mm ZEN GE100ES-2RS plain bearings
- 170 mm
- 209000 lbf
![AST ASTT90 22570 plain bearings](https://m.kohsamuihotels.org/uploaded_images/d12669-ast-astt90-22570-plain-bearings.jpg)
- AST ASTT90 22570 plain bearings
- 3.5429 in
- Exceptional Bearing Protection, Rotating Applications, Pumps, Gearboxes, Motors, Energy Efficient Applications, Primary Metals Industry, Steel Industry, Aluminum Industry, Pulp and Paper Industry, Che
![160 mm x 165 mm x 80 mm SKF PCM 16016580 M plain bearings](https://m.kohsamuihotels.org/uploaded_images/d12670-160-mm-x-165-mm-x-80-mm-skf-pcm-16016580-m-plain-bearings.jpg)
- 160 mm x 165 mm x 80 mm SKF PCM 16016580 M plain bearings
- Two-Bolt Base
- 3.6875 in
![AST AST20 190120 plain bearings](https://m.kohsamuihotels.org/uploaded_images/d12668-ast-ast20-190120-plain-bearings.jpg)
- AST AST20 190120 plain bearings
- 45 mm
- 2150 lbf
![AST AST650 607530 plain bearings](https://m.kohsamuihotels.org/uploaded_images/d12667-ast-ast650-607530-plain-bearings.jpg)
- AST AST650 607530 plain bearings
- 35 mm
- 2640 kgf
![260 mm x 400 mm x 205 mm ISB GEG 260 ES plain bearings](https://m.kohsamuihotels.org/uploaded_images/d12667-260-mm-x-400-mm-x-205-mm-isb-geg-260-es-plain-bearings.jpg)
- 260 mm x 400 mm x 205 mm ISB GEG 260 ES plain bearings
- 10 mm
- Without Snap Ring
![Toyana TUP2 130.50 plain bearings](https://m.kohsamuihotels.org/uploaded_images/d12669-toyana-tup2-130-50-plain-bearings.jpg)
- Toyana TUP2 130.50 plain bearings
- 1.2500 in
- 4410 lbf
![100 mm x 160 mm x 85 mm LS GEG100ES plain bearings](https://m.kohsamuihotels.org/uploaded_images/d12668-100-mm-x-160-mm-x-85-mm-ls-geg100es-plain-bearings.jpg)
- 100 mm x 160 mm x 85 mm LS GEG100ES plain bearings
- 1.1875 in
- Contact Seal
![88,9 mm x 93,663 mm x 95,25 mm SKF PCZ 5660 M plain bearings](https://m.kohsamuihotels.org/uploaded_images/d12669-88-9-mm-x-93-663-mm-x-95-25-mm-skf-pcz-5660-m-plain-bearings.jpg)
- 88,9 mm x 93,663 mm x 95,25 mm SKF PCZ 5660 M plain bearings
- 2.5000 in
- Non-Expansion Bearing (Fixed)
![127 mm x 196,85 mm x 111,125 mm FBJ GEZ127ES plain bearings](https://m.kohsamuihotels.org/uploaded_images/d12669-127-mm-x-196-85-mm-x-111-125-mm-fbj-gez127es-plain-bearings.jpg)
- 127 mm x 196,85 mm x 111,125 mm FBJ GEZ127ES plain bearings
- 1.0000 in
- Flange Block
![20 mm x 40 mm x 25 mm INA GE 20 PB plain bearings](https://m.kohsamuihotels.org/uploaded_images/d12660-20-mm-x-40-mm-x-25-mm-ina-ge-20-pb-plain-bearings.jpg)
- 20 mm x 40 mm x 25 mm INA GE 20 PB plain bearings
- 1.7500 in
- Contact with Flinger