(1) High rigidity in all directions 　　
The use of four-row arc grooves and a 45-degree contact angle of four rows of steel balls allows the steel balls to achieve an ideal two-point contact structure, which can bear the load from the up, down and left and right directions; when necessary, preload can be applied to increase rigidity.
(2) Interchangeable 　　
Due to the strict control of the manufacturing precision, the linear guide rail size can be maintained within a certain level, and the slider has a retainer design to prevent the steel ball from falling off. Therefore, some series of precision are interchangeable. Customers can order guide rails or The sliding block can also be stored separately from the guide rail and the sliding block to reduce storage space.
(3) Self-aligning ability 　　
The DF (45-°45)° combination from the arc groove, during installation, through the elastic deformation of the steel ball and the transfer of the contact point, even if the installation surface is somewhat deviated, it can be absorbed by the inside of the linear rail slider. Produces the effect of self-aligning ability and obtains high-precision and stable smooth movement.