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.

Bearing Number	Bore Dia	Outer DIa	Width	Size
AST AST090 21580 plain bearings	Take Up Units	0.0	N/A	13.62
SKF SALA70ES-2RS plain bearings	Take Up Units	0.0	N/A	51.756
45 mm x 53 mm x 40 mm INA ZGB 45X53X40 plain bearings	84.84 mm	6-1/2 in	5.497-12	N028
SKF SC20ES plain bearings	Take Up Units	0.0	N/A	17.252
AST GEEM20ES-2RS plain bearings	Flange Block	0.0	N/A	24.97
220 mm x 340 mm x 175 mm ISO GE 220 HCR-2RS plain bearings	Pillow Block	0.0	N/A	6.356
200 mm x 290 mm x 130 mm LS GE200ES-2RS plain bearings	Pillow Block	0.0	N/A	17.706
25 mm x 62 mm x 16 mm INA GE 25 AW plain bearings	Flange Block	0.0	N/A	6.356
180 mm x 280 mm x 61 mm INA GE 180 SX plain bearings	Flange Block	0.0	N/A	15.89
60 mm x 150 mm x 37 mm ISO GW 060 plain bearings	3.0000 in	7.4400 in	6.0000 in	Single V-Lock
30 mm x 55 mm x 37 mm INA GIPR 30 PW plain bearings	Flange Block	0.0	N/A	18.16
20 mm x 23 mm x 20 mm SKF PCM 202320 M plain bearings	Pillow Block	0.0	N/A	157.992