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), 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.



A plain bearing, also known as a bushing, is a mechanical element used to reduce friction between rotating shafts and stationary support members. Typically, a bushing relies on soft metal or plastic and an oil film to support the rotating shaft on the hardened shaft journal.




BOSTON GEAR CB-2856 Plain Bearings

0.64 kg 16 mm
98 mm 200 °C

BOSTON GEAR CB-2844 Plain Bearings

Bearings with Housin Flange Type
Yes (with retaining 8 Days

BOSTON GEAR CB-2456 Plain Bearings

[Steel] Steel 8 Days
Available Deep Groove Ball Bea

BOSTON GEAR CB-2836 Plain Bearings

0.6 mm 0.4 Hz
42 mm 4.76 Hz

BOSTON GEAR CB-2840 Plain Bearings

2.8 in 0.0827
24700 lbf Stamped Steel

BOSTON GEAR CB-2440 Plain Bearings

Standard / Dust Resi Metric Series
Rubber Seal Type Standard

BOSTON GEAR CB-2448 Plain Bearings

Radial [Steel] Steel
Metric System C3

BOSTON GEAR CB-2436 Plain Bearings

METRIC 668.6
0.134 230.89 mm

BOSTON GEAR CB-2432 Plain Bearings

144 mm 0.97 kg
12mm 14 mm

BOSTON GEAR CB-2040 Plain Bearings

M16 SCOU211-32
PG211N- 16.8 Nm

BOSTON GEAR CB-2048 Plain Bearings

Flat High tensile brass
Type B (Standard Typ Double Row

BOSTON GEAR CB-2232 Plain Bearings

Double 64
Deep Groove Ball Bea No