BEARING INDUSTRIA CUSCINETTI S.P.A.

Plain bearings,Bushings

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.

Integral plain bearings are built into the object of use as a hole prepared in the bearing surface. Industrial integral bearings are usually made from cast iron or babbitt and a hardened steel shaft is used in the bearing.

Integral bearings are not as common because bushings are easier to accommodate and can be replaced if necessary.Depending on the material, an integral bearing may be less expensive but it cannot be replaced. If an integral bearing wears out, the item may be replaced or reworked to accept a bushing. Integral bearings were very common in 19th-century machinery, but became progressively less common as interchangeable manufacture became popular.

For example, a common integral plain bearing is the hinge, which is both a thrust bearing and a journal bearing.

14 mm x 16 mm x 17 mm skf PPMF 141617 Plain bearings,Bushings
Pillow Block
AEL205-100D1
120 mm x 125 mm x 45 mm skf PRM 12012545 Plain bearings,Bushings
With Snap Ring
Bearing
20 mm x 23 mm x 16 mm skf PRMF 202316 Plain bearings,Bushings
4547359234053
Flange Block Bearing
18 mm x 24 mm x 12 mm skf PSMF 182412 A51 Plain bearings,Bushings
Cam Followers Stud T
0.433 Inch | 11 Mill
70 mm x 75 mm x 50 mm skf PCM 707550 E Plain bearings,Bushings
N/A
B04144
75 mm x 100 mm x 100 mm skf PSM 75100100 A51 Plain bearings,Bushings
N/A
B04144
80 mm x 85 mm x 40 mm skf PRMF 808540 Plain bearings,Bushings
N/A
RHP BEARING
45 mm x 50 mm x 60 mm skf PRM 455060 Plain bearings,Bushings
35MM Bore; Straight
8482.50.00.00
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Deep groove ball bearings
Double row spherical roller bearings
Plain bearings,Bushings
Power transmission seals,V-ring seals for North American market
Power transmission seals,V-ring seals, globally valid
Radial shaft seals for general industrial applications
Radial shaft seals for heavy industrial applications
Radial spherical plain bearings
SAF and SAW pillow blocks with bearings on an adapter sleeve
SAF and SAW pillow blocks with bearings with a cylindrical bore
Self-aligning ball bearings
Single row angular contact ball bearings
Single row cylindrical roller bearings
Single row cylindrical roller bearings without an inner ring
Single row deep groove ball bearings
Single direction thrust ball bearings
Timken 6461a Bearing
Timken Lm503349 Bearing
Jl69310 Timken Bearing
Timken 1729 Bearing