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Reliable support for machine tool industry
Linear motion system is one of the most important elements of mechanisms and machines, which allows rectilinear movement of their units. Usually, all linear motion systems (hereinafter for simplicity referred to as "linear guides" for simplicity) are covered with dirt protection covers, and therefore they are rarely in usual circumstances.
However, these systems are used in almost all industries, such as electronics, production of medical equipment, construction, automotive, military, chemical, etc. Thus, linear guides have become an essential and necessary component of many modern devices and mechanisms.
It is believed that for the first time, people used rolling to move heavy loads instead of sliding back during the heyday of Egypt – in the construction of the pyramids. Round logs were placed under huge stones, thus facilitating the transportation task. However, despite such an early recognition of the advantages of rolling friction over sliding friction, linear bearings began to be widely used only in the middle of the 20th century.
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LINEAR ROLLER BEARINGS
Linear roller bearings (LRB) are one of the most compact components of linear motion systems, which at the same time have the best load ratings.
The rollers move along a precision machined race located on the base plate. During operation, the linear roller bearing housing is stationary, while the load bearing rollers move.
The use of linear roller bearings allows obtaining stable and smooth linear motion, which ensures their application in the latest design developments of the largest manufacturers of machine-tool and other processing equipment.
For precision assembly of equipment, bearings are divided according to the mounting size into groups with a tolerance interval of standard mounting size: for the first group – 0-2.5 μm; for the second – 2.5 -5 μm; for the third -5 -7.5 μm, etc. The tolerance of the mounting size of a set of bearings installed in the same plane should not exceed 3 μm.

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