Bearing, in machine construction, a connector (usually a support) that permits the connected members to rotate or to move in a straight line relative to one another. Often one of the members is fixed, and the bearing acts as a support for the moving member. Most bearings support rotating shafts against either transverse (radial) or thrust (axial) loads. To minimize friction, the contacting surfaces in a bearing may be partially or completely separated by a film of liquid (usually oil) or gas; these are sliding bearings, and the part of the shaft that turns in the bearing is the journal. The surfaces in a bearing may be separated also by rollers or rollers; these are known as rolling bearings. In the illustration, the inner race turns with the shaft.
Mining & construction
Railway & aerospace
Roller Bearing Types
Cylindrical roller bearings
Spherical roller bearings
Needle roller bearings
Taper roller bearings
Rising demand for high-performance bearings has resulted in manufacturers integrating advanced sensor units in their products. The sensor units assist in digital monitoring of axial movement, deceleration, acceleration, rotation speed, and load carrying capacity of the product. Additionally, the advent of Industrial Internet of Things (IIoT), has encouraged adoption and constant monitoring of connected equipment and machinery. This trend has also influenced the bearings market positively.
Roller bearings are used for heavy-duty moderate-speed applications. Potential applications for spherical and cylindrical roller bearings include power generation, oil field, mining and aggregate processing, wind turbines, gear drives, rolling mills. Single-row tapered roller bearings are used in such applications as machine tool spindles, gear reduction units, automotive transaxles, transmissions, vehicle front wheels, differential and pinion configurations, conveyor rolls, machine tool spindles, and trailer wheels.
Bearings Market size was USD 48.1 billion in 2019 and will witness 8.2% CAGR from 2020 to 2026. Ever increasing vehicle sales and growing adoption of electric and connected vehicles will primarily drive the bearings demand for their production and related accessories. A passenger vehicle on an average uses minimum 35 bearings that vary largely on the basis of vehicle model and wide spreading technologies. Further, introduction of advanced high capacity wheel bearings coupled with improved lubricating performance will fuel the market expansion. Thus, due to demand it is best to invest in this project.