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.

Toyana TUP1 45.30 plain bearings

175 mm 134 mm
234 mm 16 mm

160 mm x 240 mm x 48 mm INA GE 160 SX plain bearings

17000 rpm 71000 N
31.00 mm 60.000 mm

AST AST800 9080 plain bearings

239.316 mm 5
SR-22-19 SAF 522

16 mm x 32 mm x 21 mm INA GAKR 16 PB plain bearings

11.1 mm 34.9 mm
0.32 kg 90.5 mm

AST SAZJ15 plain bearings

99 mm 6700 r/min
1 mm 0.95 kg

AST AST800 7040 plain bearings

0.6 mm 50 mm
25 mm 0.078 kg

Timken 37SF60 plain bearings

42.00 mm 127000 N
3000 rpm 2.50 mm

70 mm x 105 mm x 49 mm SKF GE70ES-2RS plain bearings

45 mm 710 mm
Tr 750x7 HMV 150 E

AST ASTT90 6530 plain bearings

946 mm 26 mm
913 mm 3 mm

Toyana GE17ES-2RS plain bearings

H7 20 N/mm²
0.1 2 mm

320 mm x 440 mm x 160 mm LS GEC320HCS plain bearings

0.3 mm 1.65 g
3.5 mm 1 mm

AST ASTEPBF 2528-11 plain bearings

20 N/mm² 0.026 kg
14 mm 10 N/mm²
2/18