Happybuy Linear Rail HSR15-1500mm 2pcs Linear Guideway Rail4X Square Type Carriage Bearing BlocksLinear Rail Support for 15mm Slotted Bearings

Introduction The material is the high quality steel, extend the service life of the shaft and the machine. The shaft is case hardened, If you use normal steel shaft,The bearings will be reduce in use process.Besides, it’s more durable than Plastic linear bearing. Move smoothly without deflection, minimal wear and low noise. Feartures Steel material and hardened Case Pre-drilled holes on the support rail mounts High accuracy and strong durabilit