8mm by 700mm Linear Motion Rods Set of 2 Heavy Duty High Hardness Steel Shafts With Chrome Plating 55 60 HRC For CNC Machines And 3D Printers Corrosion Resistant Precision Upgrade
✔️ 8mm dia, 700mm length, 55-60 HRC, chrome plated
These 8mm by 700mm linear motion shafts are built from C45 steel with chrome plating for corrosion resistance and long-lasting precision. They’re intended for use in CNC machines, 3D printers, engraving tools, and other automation equipment, and are sold as a 2‑shaft set to pair with standard bearing blocks and closed-type slide units for smooth, low-noise motion.
✅ Diameter 8mm, tolerance -0.005 to -0.03 mm (7.995-7.97)
✅ Length 700mm, tolerance ±0.5 mm (699.5-700.5)
✅ Case hardness 55-60 HRC via high-frequency quenching
✅ Chrome plating 10-20 μm, Ra 0.8 finish
✅ Straightness ≤ 5 m per 100 mm
✅ Pack: 2 shafts per order
💡 What is a handy choice for upgrading linear motion components in CNC machines?
These shafts offer reliable dimension control and corrosion resistance for smooth, precise motion.
- 8mm x 700mm shafts fit standard bearing blocks and closed-type slide units - Chrome plating (10-20 μm) provides wear resistance and Ra 0.8 surface finish - C45 steel core with 55-60 HRC offers durable, low-wear performance - Maintains tight tolerances for consistent motion in CNC and 3D printer setups ✝️