David Chanin, Matara UK’s Managing Director Outlines The Evolution Of The Linear Rail When choosing a linear rail there have always been a number of external factors to consider, such as load, speed, repeatability, environmental conditions and cycle times. However, whilst designation of accuracy grades amongst suppliers has stood still, production methods and machinery have significantly improved. Further to this, rail grades are still categorised by the running parallelism achieved per linear metre, which range from N grade (normal) to UP grade (ultra precision). Ultimately,…