Articles

Our world is a world of embodied ideas and bearing is only one of them. However, significant enough to be in demand in the 21st century, when artificial materials and virtual reality have significantly changed the world around us.

It is said, that first bearings appeared in ancient Egypt. Archaeologists had repeatedly found evidences that people who lived in antiquity were not so technologically backward, as it seems now.

Modern bearings significantly differ from their predecessors, as there is a huge number of types and classes, but all of them are created to help humanity to evolve, accelerating movement in technological progress.

Production of rolling bearings is carried out under stringent quality requirements. Service ability of rolling bearings depends on the production, storage, maintenance, installation, working conditions and loading of bearing.

Really formed system of conventional designation of bearings is difficult enough, multivariate and has a lot of exceptions. So, lets' focus on common and most frequently used points.

Bearings are one of the most accurate devices in machine that can be operated continuously for many years. However, due to non-ideal conditions, bearings wear out quickly and lose their properties.

The international marking system of bearings differ from GOST system and regulated by certain standards. All standard metric bearings according to ISO have basic designations, consisting of three, four or five figures or combinations of letters and figures.

Choosing the right bearings increases the efficiency of equipment, saves materials and ensures reliable operation of the detail. When choosing the bearing pay attention on: space for bearing accommodation, magnitude and direction of load.

Ball bearings are divided into: single-row radial bearings (type 0000), double-row radial bearings (type 1000), angular contact bearings (type 6000), thrust bearings (type 8000).

Roller bearings divided into: cylindrical bearings (type 2000), needle bearings (type 4000) spherical bearings (type 3000), tapered bearings (type 7000).

Insert ball bearings (or self-centered) are divided into certain types - UC, SA, SB. Bearings with housing (bearing units) are divided into the following types - UCP, UCF, UCFL, UCT. Each bearing type has its own characteristics, designation and application.

Bearings are divided into the plain bearings and rod ends. Sleeves are divided into withdrawal and adapter sleeves. Each type has its own characteristics, purpose and application. Today, plain bearings and rod ends are widely used in control and hinge mechanisms.