The stepper motor linear rail is convenient and practical, with excellent texture, and can serve you for a long time without being easily . The craftsmanship can serve you well without breaking easily. This is a very practical stepper motor linear rail. Features -Color:Silver -Material:SECC -Size:10.50X2.50X1.50cm/4.13X0.98X0.59in Operating temperature range: -0"+55'C Motor surface temperature: 80 degree centigrade or lower Driving voltage: DC12V/maximum 800mA Coil resistance: 15+/-10%ohm/phase : 18 degree/step Number of phases: 2 Drive mode: bipolar Max response frequency: more than 1600pps Max starting frequency: more than 1100pps Insulation strength: for one second Insulation resistance: 50M ohm 500V - High efficiency, high precision, , low coefficient of friction, versatility, etc. - SECC galvanized processing bracket, fit for DIY engraving machine. - Note: you need to modify by yourself, does not have linear bearing. - It is in stable characteristics, high performance and it is in great reliability, simple, easy to install. - Excellent craft, carefully down to every detail to give it and beautiful look. Package list: 1 x stepper motor rail