High-Precision Motor Shaft Manufacturer
45# Steel with QPQ Heat Treatment | 15 Years Experience in Carbon Steel Parts | OD Tolerance ±0.005 mm
We are located in Zhongkai High-Tech Zone, Huizhou, Guangdong, China, with a self-owned factory facility in Tonghu Town.
With 15 years of experience in manufacturing transmission shaft components, we understand the critical role motor shafts play in ensuring equipment stability.
From material selection to machining processes, we maintain strict quality standards.
Our factory is equipped with CNC lathes, milling machines, and other precision equipment, and operates under the ISO9001 quality management system.
Product Specifications
|
Product Name |
Motor Shaft |
|
Material |
45# Steel (High-quality carbon structural steel) Material composition certificates available upon request (custom materials supported) |
|
Manufacturing Process |
CNC turning + milling for carbon steel parts |
|
Structural Features |
• Threaded holes on both ends • External keyway • Keyway is fully deburred with smooth edges to ensure seamless assembly |
Core Process: QPQ Heat Treatment
We apply QPQ (Quench–Polish–Quench) salt bath treatment, an advanced surface strengthening process:
Key Benefits
High Hardness
Significantly improves surface hardness, enhancing wear resistance and extending the service life of carbon steel parts.
High Toughness
Maintains internal toughness while hardening the surface, allowing the shaft to withstand impact and torque.
Rust & Corrosion Resistance
Forms a dense oxide layer with 48–200 hours salt spray resistance, capable of replacing hard chrome plating in some applications.
Precision Guarantee
With 15 years of experience in CNC machining and stable production processes, we strictly control tolerances:
• Outer Diameter Tolerance: ±0.005 mm, Ensures precise fit with bearings and mating components
• Keyway Tolerance: ±0.025 mm, Guarantees secure key connection and backlash-free transmission
• Surface Finish: Ra ≤ 0.8 μm, (Adjustable according to drawing requirements)
These capabilities ensure consistent quality across all carbon steel parts we produce.
Why Choose Us
15 Years of Expertise
Extensive experience in transmission shaft manufacturing, with deep understanding of load conditions and fit requirements across different applications.
01
Tight Tolerance Control
Advanced machining processes and inspection methods enable micron-level precision.
02
Batch Consistency
Standardized work instructions and inspection procedures ensure every shaft in batch production meets specifications.
03
Fast Response
Self-owned factory allows flexible scheduling, supporting:
• Small-batch prototyping
• Urgent orders
• Reliable lead times
04
Applications
Our carbon steel parts are widely used in:
- Mechanical equipment
- Automation systems
- Automotive components
We are committed to providing reliable transmission shaft solutions for global customers.
FAQ
Get In Touch
We welcome your drawings and inquiries. Contact us today for samples or quotations and let us support your projects with high-precision manufacturing solutions.
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