Plain Bearings
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.
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.

- BOSTON GEAR PB-5803 Plain Bearings
- 33.3 mm
- 258 mm

- BOSTON GEAR PB-5616 Plain Bearings
- 4.78 kN
- 0.44 kg

- BOSTON GEAR PB-5612 Plain Bearings
- NTN
- 3,600 rpm

- BOSTON GEAR PB-5608 Plain Bearings
- 2.4375 in
- Triple Lip

- BOSTON GEAR PB-5610 Plain Bearings
- HEAVY DUTY
- 200

- BOSTON GEAR PB-5606 Plain Bearings
- Standard
- Wide Slot Take-Up

- BOSTON GEAR PB-5602 Plain Bearings
- 6 mm
- 100 °C

- BOSTON GEAR PB-5604 Plain Bearings
- 49 mm
- -20 °C

- BOSTON GEAR PB-5605 Plain Bearings
- 2
- 7/16-20UNF

- BOSTON GEAR PB-5603 Plain Bearings
- 17 mm
- 2.58 kN

- BOSTON GEAR LHSSE-14 Plain Bearings
- 41.6 mm
- 100 °C

- BOSTON GEAR LHSSE-16 Plain Bearings
- No Coating
- 782475122943