Features of SInternal Spline Shaft
Ultra-Precise CNC Grinding: Achieves consistent tolerances within 0.005mm for perfect fit and function.
High-Strength Materials: Standard 40Cr alloy steel or optional stainless steel for corrosion resistance.
Optimized Heat Treatment: Tempering delivers core hardness of HRC 28-32, boosting torsional strength by 30%.
Extended Service Life: Significantly outperforms standard transmission shafts in durability.
Rapid Customization: Non-standard sizes produced within 72 hours for urgent needs.
Comprehensive Spec Support: Full parametric details provided (teeth count, module, bore size, length).
Internal Spline Shaft Detail
| Product Name | Internal Spline Shaft |
| Journal Surface Roughness | 0.63-0.16μm |
| Material | 40Cr/45# alloy steel/stainless steel/copper/nylon/according to drawing requirements |
| Journal Relative Position Accuracy | 0.005mm |
| Transport Package | Custom Wooden Box + Metal Support Frame |
| Customized Service | OEM/ODM |
| Application | Heavy-duty equipment, aerospace, large machinery |
| Drawings Format | PDF, CAD / CAM, PRO/E, Auto CAD , UG |
| Certification | ISO9001, CE |
| HS Codes |
8483900090 |
Product Advantages
Superior Power Transfer:
30% higher torsional strength handles extreme loads reliably.
Extended Durability:
Hardened materials and precision grinding drastically reduce wear.
Reduced Downtime:
Exceptional longevity minimizes replacements and maintenance stops.
Fast Custom Solutions:
Get specialized shafts in just 3 days for prototyping or small batches.
20+ years of experience as Internal Spline Shaft manufacturer
Specialized in designing, producing and processing various specifications of synchronous wheels, gears, sprockets, racks, couplings and other transmission accessories
Semi-finished Parts Pictures:
Custom 6-Mode Stainless Steel Gears
Custom Finished Hole Sprockets
Customized 1.2 Inch Large Sprocket
Custom Gear Shaft
Customized Electric Cylinder Coupling Shaft
Customized Aluminum Flange
Packaging Pictures：
Our Certificate
CE
ISO45001
ISO14001
ISO9001
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Application Areas
Precision Gearboxes: Industrial reducers, planetary gear assemblies.
Automotive Transmissions: Clutch hubs, 4WD transfer cases.
Aerospace Actuators: Flight control mechanisms, landing gear systems.
Medical Imaging: CT scanner gantry drives, table movement systems.
Robotic Joints: High-torque robotic arm articulation points.
Hydraulic Pump/Motor Couplings: Efficient power take-off connections.
FAQ
Q: Why is ≤0.005mm tolerance critical? A: Ensures zero backlash, smooth engagement, optimal load distribution, and prevents premature wear or vibration in precision systems.
Q: What are the benefits of 40Cr steel? A: Offers excellent strength-to-weight ratio, responds well to heat treatment for enhanced toughness and fatigue resistance, ideal for high-stress applications.
Q: Can you really deliver custom shafts in 72 hours? A: Yes, for most non-standard sizes in small/medium batches, leveraging our agile manufacturing and rapid prototyping
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