Linear Motion Rods,2PCS 10MMx250MM Case Hardened Chrome Linear Rail Shaft Guide for 3D Printer DIY CNC Metric G6 Tolerance

Linear motion rods are widely used in automatic transmissions. Due to the hard surface, they can extend the service life of the equipment. They are used in industrial robots, plastic machinery, woodworking machinery, fitness equipment, precision printers, automatic cutting machines, etc.
Requirements for linear motion rods: simple design, best execution ability, low maintenance cost, strict selection of durable materials, high-frequency heat treatment, accurate outer diameter, roundness, straightness and surface treatment.
Features:

Quite smooth surface, resistant to rust and corrosion.
Made of high quality bearing steel, the linear rod are durable and sturdy.
Shaft diameter and length specified for accurate fit.

Package Included:
2 * Linear Rail Shaft（10MM*250MM）
Specifications:

Color: Silver
Material: Carbon steel substrate (GCr15)
Hardness: HRC58-HRC64
Surface Hard-thickness: 0.8 – 2.5mm
Surface roughness:ra0.3-ra0.5
Surface Chrome thickness: 15um-20um
Surface Finish Quality: Ra 0.8
Roundness:≦3μm(Rmax)
Metric G6 tolerance