Plain Bearings

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Plain bearings are composed of two parts. On one hand, there is the fixed part, which bears the loads, known as the support, and on the other, the area that gets worn; in other words, the one that is in contact with the moving element: the bush.

With the purpose of minimizing the losses generated by the bearing friction, material pairs with low friction coefficient is generally used, or a lubricant is added between the parts: solid – graphite or Teflon -, liquid – oil – or gaseous – pressurized air.

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.

AST AST090 19590 plain bearings

Straight 0.06 in
Not Split 24700 lbf

Toyana SI05T/K plain bearings

Yes (with retaining Bearings with Housin
Deep Groove Ball Bea Black Oxide Coating

101,6 mm x 106,363 mm x 95,25 mm SKF PCZ 6460 E plain bearings

Cylindrical Bore Set Steel
72500 80

28 mm x 50 mm x 28 mm NMB MBT28V plain bearings

170 mm C0
43 mm 0.0790 in

25 mm x 42 mm x 25 mm LS GEEW25ES-2RS plain bearings

25 ° C3
ABEC1, P0 1.5625 in

320 mm x 440 mm x 160 mm INA GE 320 DO plain bearings

Cast Iron Spherical Roller
Set Screw 1.0625 in

420 mm x 600 mm x 300 mm ISB GE 420 CP plain bearings

1.1 mm 11000 rpm
165 mm 72000 N

INA GE800-DW-2RS2 plain bearings

20 mm Single Row Non-Fill
9510 lbf 7970 lbf

100 mm x 160 mm x 85 mm ISO GE 100 XES plain bearings

Double [Aluminum Alloy] Alu
8 Days 15

AST GEC480HCS plain bearings

Tapered hole adapter Bearing Steel
Standard Grease No

AST AST850BM 10060 plain bearings

AST AST850BM 10060
1 pcs Negotiable

AST AST20 1515 plain bearings

0.27 lb Ambient
ISO-GARD® Vertic 29520-3349
1/18