SF Series Shaft – Chrome-Plated Linear Shaft
The SF series is our standard chrome-plated linear shaft, made of bearing steel with surface induction hardening and hard chrome plating. It serves as the companion guide rail for linear bearings. This series is designed for complete assembly interchangeability with mainstream SF series shafts. Available in sizes from SF6 to SF60, with shaft end dimensions customizable per customer drawings. Suitable for linear motion applications including automation equipment, linear modules, and precision measuring instruments.
Key Features
- Assembly Replacement – Direct replacement of existing same-series shafts in customer equipment; custom machining available per customer drawings
- Hard Chrome Plated – Surface hard chrome plated for rust and corrosion resistance, with a bright and aesthetic appearance
- Induction Hardened – Surface induction hardened to HRC60±2 for excellent wear resistance and long service life
- High Precision Tolerance – Shaft diameter tolerance complies with g6 standard for precise fit with linear bearings
- Wide Size Range – Fits shaft diameters from 3mm to 60mm; length customizable per customer requirements
Full Specifications
© RFU Motion. Specifications subject to change without notice.
For the latest specs, please contact us.
Custom Manufacturing Available
Standard ball screws and linear guides don't always fit your design. Here's what RFU MOTION can customize based on your drawings:
- Shaft end machining — machined precisely to your drawing
- Screw length — cut to your exact requirement
- Preload — light, medium, heavy, or custom value
- Nut type — standard flange, special shape, or non-standard mounting interface
- Rail length — continuous cutting with end finishing (chamfer or grinding)
- Mounting holes — special thread sizes, hole spacing, or countersunk dimensions
Send us your drawing or specs — we'll deliver exactly what you need.
📦 MOQ: 1 piece / 1 set
⏱️ Lead time: Standard custom 5-7 days | Complex custom 7-15 days | Wire cutting +2 days
Request Custom Quote →