By installation of two rows of Roller Guides in parallel, all loads at a right angle to the axis can be taken up . As preloads also can be applied easily, linear
motion mechanisms of high rigidity and light movement with zero clearance can be obtained.
Long life and High rigidity
Because of an epochal roller holding method, the effective contact length of the rollers is increased to about 1.7 times of that of conventional products, and as the roller pitch interval is short and the roller number is large, the rigidity is doubled and the life is increased 6 times. This permits sufficiently safe design in regard to the vibrations and impacts occurring easily with linear motion parts.
The THK Cross roller guide type VR has the rollers separated from each other by a cage, and the roller pockets formed in the cage have surface contact with the rollers, so that lubrication oil is held well, and smooth rolling movement without wear and with little friction is obtained.
Excellent corrosion resistance
Stainless steel types with excellent corrosion resistance also are available for the THK Cross guide type VR and the Ball guide type VB.