⑤Features of RG series
The new RG series from HIWIN features a roller as the rolling
element instead of steel balls. The roller series offers super high
rigidity and very high load capacities. The RG series is designed
with a 45-degree angle of contact. Elastic deformation of the
linear contact surface, during load, is greatly reduced thereby
offering greater rigidity and higher load capacities in all 4 load
directions.The RG series linear guideway offers high performance
for high-precisionmanufacturing and achieving longer service life.
1. Optimal design
FEM analysis was performed to determine the optimal structure of
the block and the rail. The unique design of the circulation path allows the RG series linear guideway to offer smoother linear
motion.
2.Super high rigidity
The RG series is a type of linear guideway that uses rollers as the
rolling elements. Rollers have a greater contact area thanballs so that the roller guideway features higher
load capacityand greater rigidity. The figure shows the rigidity of a roller and a ball with equal volume.
3. Super high load capacity
With the four rows of rollers arranged at a contact angle of
45-degrees, the RG series linear guideway has equal load ratings in the radial, reverse radial and lateral
directions.The RG series has a higher load capacity in a smaller size than conventional, ball-type linear guideways.
4. Operating life increased
Compare with the ball element, the contact pressure of rolling
element is distributed on the line region. Therefore,stress concentration was reduced siginificantly and the RG series
offers longer running life. The nominal life of RG seriescan be calculated by using Eq.
