... least resistance, high precision, fast motion. Linear motion bearings metric and imperial seriesstandard (LM/LME/LMB.. UU), Diameter Serieng ... Japan, South Korea, China, etc. To the metric system for standard size, with straight reel diameter tolerance is generally h7. LME ... To the imperial size for standards, also the metric system size, with straight reel diameter tolerance is generally g6. Two big ...