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.

BOSTON GEAR SB-14 Plain Bearings

Metric 30x53x15.5
2.087 Inch | 53 Mill INA

BOSTON GEAR SB-12 Plain Bearings

YAR 207-104-2F 11 mm
27,9 mm

BOSTON GEAR SB-10 Plain Bearings

22 mm 900 r/min
180 mm 312,1 mm

BOSTON GEAR SB-16 Plain Bearings

ABEC 1 | ISO P0 Steel
1208K 46.5 mm

BOSTON GEAR SB-8 Plain Bearings

Bearings 12 mm
10 mm 0.009

BOSTON GEAR SB-6 Plain Bearings

17x40x12 12
12 mm 17 mm

BOSTON GEAR SB-4 Plain Bearings

N/A 97 mm
23,5 mm 66,8 mm

BOSTON GEAR PB-5804 Plain Bearings

6.94 Hz 102 kN
102 kN NTN

BOSTON GEAR LHSSE-2 Plain Bearings

4850 lbf 32.5 mm
Ball Bearing Narrow Shroud

BOSTON GEAR CB-80112 Plain Bearings

0,011 Kg KOYO
10 mm AXZ 6 10 22,4

BOSTON GEAR CB-6496 Plain Bearings

13.8 mm 65 mm
75 mm 54

BOSTON GEAR CB-5676 Plain Bearings

430 r/min 473 mm
495 mm 460