BGX Without Cage Linear Guide
BGX 4-Groove Even Load Design
The 4 rows of steel balls forms 45° contact with the grooves at 4 positions will balance the loads from 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 plane and the assembly errors.
4-Groove even load system
2-Groove Gothic systemBGX 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.
Passages of particle incursion：
1. Screw holes :
The particles caught at the rail holes get into the circulation groove via vibration cause by machine movements.
2. Gap in between the slide and the rail :
This is the closest incursion passage and is normally the passage for bigger particle particularly for the longer rails.
Top seal system：
Prevents the particle caught at the rail holes from entering the groove and improves the stability of the slide under extreme ambient.
Prevents the particle caught at the rail holes from entering the groove by covering it with a rubber wiper and protects the upper-row steel balls.
Bottom seal system：
The bottom seal system block the passage between slide and rail with the rubber wiper to secure smooth circulation of the steel balls.
Prevents the particle from entering through the gap in between slide and rail for better protection of the circulation groove.
BGX Tubular Muffling System
High polymer tube eliminated the collision of steel balls when the slide moves in high speed.
The high polymer bush in BGX linear guide improves the lubrication
The slide moves quieter
BGX linear guide use high polymer bush to isolate the circulating steel balls and eliminate the chances of unpleasant noises.
Better lubrication
The high polymer bush in BGX linear guide improves the lubrication.
Uniform life time
BGX circulation bush guarantees the expected life time of the linear slide for the facts below.
1. No noise of steel ball collision against the metallic tube as the conventional linear slides.
2. Lubrication is better compared to the conventional linear slides.
3. Less friction between the steel balls and the tube in high speed.
BGX Oil Retaining in Circulation System
BGX circulation system reserves a lot of space for retaining oil and is able to keeps a lot more oil. When linear slide moves, the oil inside spreads all over and prolongs the life of the construction due to the inertia. When the slide rests, the lubrication oil will return to the oil retainer in the circulation system without escaping.
BGX Permissible Moment
Loads calculation for linear guides differs between single-rail and dual-rail. In the single-rail system, calculating the load must consider the moment given by external force in 3 dimensions, and must calculate the equivalent load permissible moment.
