Cylinder Straight Line Guide (Optical axis) Series

Description

Product Overview
The Cylinder Straight Line Guide (Optical Axis) Series is widely used in linear motion systems that require smooth, accurate, and low-friction movement. Made with high-quality steel and precision-ground surfaces, the optical axis provides a stable guiding system for CNC machines, automation equipment, 3D printers, linear bearings, and various industrial applications.

This series includes two major types:
Hardened Optical Shaft (High-Strength Type)
Soft Optical Shaft (Machinable Type)
Both versions are produced with strict dimensional tolerances to ensure consistent performance and excellent smoothness during linear travel.
1. Hardened Optical Axis (Hard Shaft)
High-Strength, Wear-Resistant Linear Motion Shaft for Heavy-Duty Applications
Material & Heat Treatment
Manufactured from high-carbon bearing steel (commonly GCr15 / SUJ2 / 52100 steel) and processed with high-frequency surface hardening (HRC 60–64).
The hardened layer provides exceptional wear resistance and long service life.
Features
High surface hardness (HRC 60+), excellent abrasion resistance
Precision-ground surface, smooth Ra ≤ 0.2 μm
High rigidity and load capacity
Long service life even under continuous, high-speed movement
Suitable for industrial-grade linear bearings and automation equipment

Applications
CNC machines and machining centers
Industrial robots and automation systems
Packaging and cutting machinery
3D printers and linear module systems
Precision measuring instruments
Heavy-duty and long-stroke linear motion devices
Why Choose Hardened Shaft?
Ideal for customers who require maximum durability, long usage life, and high stability in demanding environments.
2. Soft Optical Axis (Soft Shaft)

Machinable Linear Motion Shaft for Customized Ends & Flexible Processing

Material & Performance
Made of high-quality carbon steel or bearing steel with no surface hardening, allowing convenient mechanical processing.
Soft shafts maintain good straightness and smooth surface, suitable for light-to-medium load systems.
Features
Easy to cut, drill, tap, or machine for custom ends
Smooth surface with precision-ground finish
Good straightness and adequate rigidity for light-duty applications
Cost-effective solution for machines requiring custom shaft lengths
Ideal for linear bearings, DIY machines, and low-load automation systems
Applications
DIY linear motion projects
3D printers and hobby CNC machines
Small automation equipment
Sliding systems and lightweight instruments
Places requiring custom machining or threaded ends
Why Choose Soft Shaft?
Perfect when the shaft must be customized—cutting, threading, or special machining is easy and economical.
Key Advantages of Our Optical Axis Series
High precision grinding ensures stable and accurate linear travel
Multiple material options: GCr15, 45# steel, stainless steel
Support shafts available in hard chrome-plated versions
Straightness tolerance: ≤ 0.1–0.3 mm/m
Diameter range: 6mm–100mm
Custom lengths & OEM processing available
Suitable for both industrial and DIY applications
Typical Applications
CNC machinery and industrial automation
Linear guide systems using LM / SC / SBR / TBR bearings
Robotic arms, pick-and-place units
Laser machines, engravers, and woodworking tools
Packaging, printing, and measurement equipment
DIY mechanical builds and test benches
Why Choose Our Optical Axis Series?
Strict quality control and advanced grinding technology
High straightness and mirror-like surface finish
Complete range of hard and soft shafts
Custom machining and OEM services
Competitive pricing with fast delivery
Reliable performance for all linear motion systems