Plain bearings

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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
120 mm x 125 mm x 100 mm INA EGB120100-E40 plain bearings	1.0625 in	4410 lbf	3.5625 in	2540 lbf
IKO POS 4 plain bearings	1.3125 in	2150 lbf	5.1250 in	1080 lbf
AST AST800 4540 plain bearings	3 in	+10 to +220 °F	3-1/4 in	50000
Toyana TUF1 18.200 plain bearings	35 mm	1260 kgf	Cast Iron - Teflon Protection	PF3/4
40 mm x 62 mm x 38 mm INA GE 40 HO-2RS plain bearings	1.5000 in	2150 lbf	5.6719 in	1080 lbf
12 mm x 26 mm x 15 mm IKO GE 12G plain bearings	173.96 mm	63.5 mm	9-19/32 in	053893420882
38.1 mm x 61.913 mm x 57.15 mm SKF GEZM 108 ES-2RS plain bearings	40 mm	KM10	47 mm	MB8
AST ASTEPB 0608-08 plain bearings	1.3750 in	2150 lbf	5.1250 in	1080 lbf
140 mm x 230 mm x 130 mm LS GEG140XT-2RS plain bearings	1.3125 in	5820 lbf	3.9375 in	3460 lbf
200 mm x 290 mm x 130 mm IKO GE 200ES plain bearings	30 mm	1830 kgf	111 mm	Contact with Flinger
AST AST11 2425 plain bearings	Two-Bolt Base	1.1250 in	0.7500 in	1.1875 in
130 mm x 200 mm x 110 mm IKO SB 130200110 plain bearings	Circulating Oil Grommet Kit	RTL	3-7/16 to 5-7/16 in	-