1, High positional accuracy
When a load is driven by a linear motion guideway , the frictional contacy between the load and the bed desk is rolling contact. The coefficient of friction is only 1/50 of traditional contact ,and the difference between the dynamic and the static coefficient of friction is small .Therefore.there would be no slippage while the load is moving.
2, Long life with high motion accuracy.
With a traditional slide, errors in a ccuracy are caused by the counter flow of the oil film. Insufficient lubrication causes wear between the contact surfaces, which become increasingly inaccurate .In contrast , rolling contact has little wear, therefore,machines can achieve a long life with highly accurate motion.
3, High speed motion is possible with a low driving force
Because linear guideways have little friction resistance , only a small driving force is needed to move a load .This results in greater power savings, especially in the moving parts of a system, This is especially ture for the reciprocating parts.