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
85 mm x 135 mm x 74 mm NTN SA4-85B plain bearings	300 N/mm²	Double-lip seals	Steel/steel	8 mm
AST AST850SM 7060 plain bearings	23048 CCK/W33	56.356 mm	214.313 mm	42.862 mm
16 mm x 38 mm x 21 mm ISB SSR 16 plain bearings	334 kN	228.6 mm	185 kN	89.694 mm
140 mm x 243 mm x 61 mm ISB GX 140 SP plain bearings	359.999 mm	2 x B10724-159	42.862 mm	SAF 540
63,5 mm x 100,013 mm x 55,55 mm INA GE 63 ZO plain bearings	1.73 kN	22000 r/min	17 mm	0.0065 kg
88,9 mm x 139,7 mm x 133,35 mm SKF GEZM308ES-2LS plain bearings	1.00 mm	52.0000 mm	8500 rpm	8500 rpm
95 mm x 145 mm x 32 mm LS GAC95T plain bearings	3.4	0.3	3600 r/min	0.6 mm
12 mm x 22 mm x 10 mm ISB SA 12 C plain bearings	45.000 mm	31000 rpm	0.30 mm	21000 rpm
22 mm x 37 mm x 19 mm NTN SA4-22B plain bearings	198.438 mm	200 mm	AN 40	W 40
110 mm x 160 mm x 70 mm IKO GE 110ES plain bearings	24.00 mm	25000 rpm	17000 rpm	0.64 mm
300 mm x 305 mm x 50 mm SKF PCM 30030550 E plain bearings	34500 N	34.90 mm	35.000 mm	One Shield & Snap-Ri
25 mm x 47 mm x 31 mm ISB TSM 25 C plain bearings	Snap-Ring	85.000 mm	190000 N	3200 rpm