Plain Bearings
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.
![80 mm x 130 mm x 70 mm NTN SA4-80B plain bearings](https://m.whats-up-cupcake.com/uploaded_images/d21910-80-mm-x-130-mm-x-70-mm-ntn-sa4-80b-plain-bearings.jpg)
- 80 mm x 130 mm x 70 mm NTN SA4-80B plain bearings
- 45 mm
- 2150 lbf
![180 mm x 260 mm x 105 mm INA GE 180 DO plain bearings](https://m.whats-up-cupcake.com/uploaded_images/d21911-180-mm-x-260-mm-x-105-mm-ina-ge-180-do-plain-bearings.jpg)
- 180 mm x 260 mm x 105 mm INA GE 180 DO plain bearings
- 1.2500 in
- 2150 lbf
![AST ASTT90 250100 plain bearings](https://m.whats-up-cupcake.com/uploaded_images/d21914-ast-astt90-250100-plain-bearings.jpg)
- AST ASTT90 250100 plain bearings
- 4.0000 in
- Non-Expansion Bearing (Fixed)
![AST SIJK20C plain bearings](https://m.whats-up-cupcake.com/uploaded_images/d21912-ast-sijk20c-plain-bearings.jpg)
- AST SIJK20C plain bearings
- 2.5000 in
- 2.9000 in
![INA GE40-SW plain bearings](https://m.whats-up-cupcake.com/uploaded_images/d21913-ina-ge40-sw-plain-bearings.jpg)
- INA GE40-SW plain bearings
- 1.5000 in
- 2150 lbf
![LS SF15ES plain bearings](https://m.whats-up-cupcake.com/uploaded_images/d21911-ls-sf15es-plain-bearings.jpg)
- LS SF15ES plain bearings
- 2.4375 in
- Double V-Lock
![AST GAC100T plain bearings](https://m.whats-up-cupcake.com/uploaded_images/d21910-ast-gac100t-plain-bearings.jpg)
- AST GAC100T plain bearings
- 60 mm
- 5350 kgf
![AST AST40 3240 plain bearings](https://m.whats-up-cupcake.com/uploaded_images/d21915-ast-ast40-3240-plain-bearings.jpg)
- AST AST40 3240 plain bearings
- Mounted Units & Inserts
- 0.0
![AST AST090 11590 plain bearings](https://m.whats-up-cupcake.com/uploaded_images/d21912-ast-ast090-11590-plain-bearings.jpg)
- AST AST090 11590 plain bearings
- 2.5000 in
- 2.9000 in
![AST AST50 16FIB08 plain bearings](https://m.whats-up-cupcake.com/uploaded_images/d21910-ast-ast50-16fib08-plain-bearings.jpg)
- AST AST50 16FIB08 plain bearings
- 3.4375 in
- 3.4100 in
![AST AST800 1020 plain bearings](https://m.whats-up-cupcake.com/uploaded_images/d21912-ast-ast800-1020-plain-bearings.jpg)
- AST AST800 1020 plain bearings
- 13 mm
- Dry 24.5 N/mm2;Dry Static 73.5 N/mm2;Periodic Lubrication 49 N/mm2;Periodic Lube Static 73.5 N/mm2Dry 24.5 N/mm2;Dry Static 73.5 N/