Linear Bearing

Linear Bearing

The linear bearing is used in conjunction with the cylindrical shaft for unlimited linear motion. Due to the point contact with quenched drive shaft, the ball allows small load. In addition, the steel balls rotate with minimal friction resistance, so as to obtain high-precision smooth movement. Therefore, this low-cost product is mainly used in light industry machinery that moves in straight line, such as CNC machine tool, laser welding machine, tile cutter, mitre saw, paper bowl machine, engraving machine, screen printing machine, etc.

Structure and Characteristics
MYT linear motion bearing is composed of outer ring, balls, retainer and end ring. The retainer constrains balls in a circular orbit, while the end ring allows the retainer to be fixed in the outer ring.

Seal type: e.g  LM20UU              

No U: No seal      

U: Single seal

UU: Double seals

1. After heat treatment, the outer ring enjoys sufficient hardness, so as to ensure long traveling life and satisfactory bearing capacity.
2. The common type linear bearing can be easily installed in any direction. It can work accurately when used together with the shaft. The mounting surface is also easy to process.
3. Each set has interchangeability due to the standardized size and high machining accuracy. This brings great convenience for replacement of worn or damaged ones.
4. With complete models for option, the product can meet the different needs of different customers.

Installation
As Fig.1 shows, the user should push by hand or gently beat the linear bearing instead of beating the retaining ring or seal ring at two ends when installing the product into the housing. Then the shaft should be carefully inserted without striking against steel balls. If two parallel shafts are used at the same time, special attention should be paid to the shaft parallelism, so as to ensure the smooth operation of the product.

Installation Cases
The common installation of linear bearing requires appropriate resistance when pushing it into housing bores. However, we recommend trying to adopt a loose fit, or the accuracy of the product will decline. Fig.2-Fig.6 introduces several installation structures and fixing methods for reference.