Product Overview
This threaded linear motion shafts is manufactured using high-precision CNC turning and grinding processes. Designed for linear motion systems, automation equipment, and precision assemblies, it features a Φ10 main shaft, precision-ground tolerance sections, and dual-threaded ends for flexible installation and secure positioning.
As a type of precision ground shaft and custom CNC shaft, it ensures excellent dimensional accuracy, smooth motion performance, and long-term reliability.
Key Specifications
| Parameter | Details |
|---|---|
| Total Length | 68.5 mm |
| Main Shaft Diameter | Φ10 mm |
| Transition Shaft | Φ6 (+0.05) mm |
| High Precision Sections | Φ8 / Φ6 (tolerance fit) |
| External Thread | M8 × 12 mm (13 mm incl. relief groove) |
| Internal Thread | M5 |
| Surface Roughness (Critical) | Ra 1.6 |
| Surface Roughness (General) | Ra 6.3 |
| Edge Treatment | Chamfer C0.5 + deburring |
| Anti-Rotation Design | 240° hex flat |
| Standard | GB/T 6403.4-2008 |
| Compliance | RoHS 2.0 / REACH |
Product Structure
This threaded linear motion shafts features a precision stepped shaft design, optimized for strength, alignment accuracy, and assembly flexibility.
Main Shaft Section (Φ10 mm)
The primary load-bearing part of the linear motion shaft, ensuring rigidity and stable guidance.
Precision Fit Sections (Φ8 / Φ6)
High-precision ground areas used as bearing or bushing seating surfaces, ideal for precision ground shaft applications.
Stepped Transition Shaft (Φ6 +0.05 mm)
Improves positioning accuracy and alignment in stepped shaft structures.
External Thread Section (M8)
A typical shaft with external thread, designed for secure mounting. Includes a relief groove for better thread performance.
Internal Thread Section (M5)
Provides additional connection flexibility, making it a versatile threaded shaft component.
Anti-Rotation Flat (240° Hex)
Prevents rotation during operation, suitable for anti-rotation shaft applications.
Chamfer & Relief Features
Includes C0.5 chamfers and relief grooves to improve machined shaft quality and assembly safety.
Product Features
1. High Precision Machining
Key surfaces finished to Ra 1.6 for smooth motion
Tight tolerances ensure reliable fit in bearing systems
2. Dual Threaded Shaft Design
M8 external thread for mounting
M5 internal thread for extended assembly options
Ideal for threaded linear shaft applications
3. Stepped Shaft Structure
Multi-diameter design improves alignment and positioning
Widely used in precision shaft design and custom CNC shafts
4. Anti-Rotation Function
240° hex flat ensures stability under torque
Suitable for automation and fixture systems
5. Superior Surface Quality
Fully deburred, no dents or scratches
Meets industrial appearance and functional standards
Material & Compliance
Material: Stainless steel / alloy steel (customizable)
Surface condition: Machined or polished
Compliant with:
RoHS 2.0 (2015/863/EU)
REACH (1907/2006/EC)
Applications
- Linear motion systems
- Automation machinery
- Precision fixtures & tooling
- Bearing and bushing assemblies
- Mechanical positioning components
FAQ
Q: Can you customize threaded linear motion shafts?
A: Yes, we support full customization including dimensions, tolerances, threads, and materials.
Q: What materials are available?
A: Stainless steel, carbon steel, and alloy steel are commonly used.
Q: Are the precision sections suitable for bearings?
A: Yes, the Ra 1.6 ground surfaces are designed for bearing or bushing fits.
Q: Can surface treatment be applied?
A: Yes, options such as polishing, plating, or heat treatment are available.
Q: What is the lead time for production?
A: Typically 7–20 days depending on order quantity and complexity.
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