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
80 mm x 120 mm x 55 mm SKF GE 80 ES plain bearings 0.361 78.7 mm 0.12 kg 78 kN
80 mm x 130 mm x 75 mm LS GEG80ES-2RS plain bearings -20 °C 6 mm 12mm 6.65 kN
340 mm x 540 mm x 105 mm INA GE 340 AW plain bearings Bearing Steel No No Cover Insert Bearing Unit
ISB TSF.R 25 plain bearings 42.9 mm P207- 17mm 94 mm
AST AST40 160115 plain bearings 20 mm 100 °C 108 mm SCOU206-19
Toyana TUP2 90.90 plain bearings 7 Days For Outer Ring 11 Negative Tolerance
160 mm x 230 mm x 105 mm ISB GE 160 ET 2RS plain bearings 151 mm 96.8 mm 34.1 mm 4.76 mm
Toyana TUP2 15.20 plain bearings 3,300 rpm 111 mm 90 mm 4.86 Hz
AST AST20 06IB08 plain bearings 6.06 kg 46 mm M6x1 65.1 mm
420 mm x 560 mm x 190 mm ISO GE 420 ES plain bearings Quote Steel Bearing unit Cylindrical Bore Set
AST AST50 64IB60 plain bearings Bottom Mount 8 Days Double Deep Groove Ball Bea
20 mm x 35 mm x 16 mm LS GE20ET/X plain bearings 16**/6*** series /2AS 190 Metric System
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