The 4 rows of steel balls forms 45 degree contact with the grooves at 4 positions will balance the loads form all direction. This design that permits even load capacity in all directions no matter how the rails are mounted is widely adopted in all types of machines. Compared with the 2-groove Gothic design, the 4-groove construction is of better rigidity, accuracy and life. In particular, the auto-adjust capability allows quick accurate linear motions by eliminating the deviation of the mounting planes and the assembly errors.

BGX Seal Design

Incursion of foreign objects is normally the major reason of life shortening for rails because the accuracy of linear guides relies very much on circulation of the steel ball between the slide and the rail. Even the incursion of smallest objects can cause skipping and bumping of the slide and lead to permanent damage. Therefore, seal design is the key to linear slide quality. The seal design in BGX linear guides is divided into top and bottom seal systems aiming at the incursion passage of the foreign objects.

BGX circulation system creates a lot more spaces for reserving oil and is able to keep oil from escaping. When linear slide moves, the inertia spreads oil all over metal construction and the lifetime is stabilized.

Four rows of steel balls forms 45° contact with the grooves at four positions will balance the loads from all directions. This design permits even load capacity in all directions no matter how the rails are mounted is widely adopted in all types of machines. Compared with two rows Gothic design, four rows construction is better in rigidity, accuracy and lifetime. Particularly the auto-adjust capability allows quick accurate linear motions by eliminating the deviation of the base plane and the assembly errors.

The advantages of four rows system are:
1. Smooth movement
2. Low friction
3. Higher load rating