Linear Guide Rail (Full Roller Type, MSR Series) Linear Guide (MSR) 1. Ultra Heavy Load 2. The Optimization Design of Four Directional Load 3. Ultra High Rigidity Linear Guide (Full Roller Type, MSR Series) Characteristics The full roller type linear guideway, heavy load and high rigidity. Ultra Heavy Load MSR linear guideway through rollers have a line contact with carriage and rail. Relative to the general type linear guideway through balls have a point contact