TRN series mini linear guide ways are standard type with rail width 7mm to 15mm.TRN series miniature LM guideways are small in size,Website:http://www.chtrmotion.com, light in weight, precise in positioning, low in noise, smooth in operation, simple to install.TRN series miniature LM guideways are with Steel ball retainer,multi-brand interchangeability.TRN miniature linear guideways are mainly used in Precision measuring equipment, office automation equipment, and other small linear motion equipment.ModelHH1NW1W2W3L1L2L3L4MxdH3WeightTRN7C81.5517122.523.5814.3-M2x2.51.510gTRN7H81.5517122.5311221.6-M2x2.51.514gTRN9C1025.520152.5301020.8-M3x32.219gTRN9H1025.520152.540.51530.9-M3x32.228gTRN12C1337.527203.5341521.6-M3x3.52.735gTRN12H1337.527203.5442032-M3x3.52.752gTRN15C1648.532253.5422027.8-M3x43.164gTRN15H1648.532253.5572542.762M3x43.195gData unit is mm