Linear guideways, also known as line rails, are used in high-precision or high-speed linear reciprocating motion applications. They can bear a fixed torque and can achieve high-precision linear motion under load.
Linear rails can be divided into roller linear guides, cylindrical linear guides, and ball linear guides. According to the nature of friction, linear motion guideways can be divided into sliding friction guides, rolling friction guides, elastic friction guides, fluid friction guides, etc.