Micro Spline Shafts
High-Precision Micro Spline Shafts: Aerospace Quality & DIN 5-8 Accuracy
When your application demands high torque transmission in a compact space, MH Micro Gear’s micro spline shafts provide the reliability and precision required by the world’s most demanding industries. Leveraging over 70 years of aerospace manufacturing heritage, we specialize in producing miniature spline shafts that meet the rigorous standards of aerospace, medical robotics, and high-end automation.
Micro spline shafts are different from conventional gears. Instead of a full gear wheel, the functional transmission area is formed on a small shaft with external spline or tooth-profile features. Manufacturing requires control of tooth profile, shaft straightness, runout, concentricity, surface finish, and burr condition.
Representative Capability Parameters
| Item | Description |
| Product type | Micro spline shaft / miniature splined shaft |
| Structure | Small-diameter shaft with external spline or tooth-profile section |
| Manufacturing basis | Customer drawing, sample, 3D model, or technical specification |
| Material options | Alloy steel, stainless steel or customer-specified material |
| Heat treatment | Available according to drawing requirements |
| Key control points | Shaft runout, straightness, spline profile, concentricity, burr control, surface finish |
| Applications | Compact gearboxes, robot actuators, aerospace instruments, precision transmission assemblies |
| Production mode | Prototype, small batch, and batch production |
Engineering Focus
For small-diameter splined shafts, the main challenge is not only machining the spline profile but also maintaining the shaft geometry after multiple operations. Long and thin shaft structures may be sensitive to deformation, clamping error, and runout. MH reviews each drawing to define a suitable process route and inspection method.
Key concerns include:
Small-diameter shaft machining stability
Spline profile accuracy
Runout and concentricity
Shaft straightness
Burr control on spline teeth
Surface finish and wear resistance
Heat treatment deformation, if required
Typical Applications
- Compact robot actuator transmission systems
- Micro gearboxes
- Aerospace instrument mechanisms
- Precision shaft-coupling systems
- Medical device motion mechanisms
- Miniature drive assemblies
Related Pages
Micro Gear Shafts
Micro Machining
High Geometry Tolerance Machining
Small Module Gears
Robot Actuator Gears
Why Choose MH Micro Spline Shafts?
1. 70 Years of Aerospace Manufacturing DNA
Our facility is rooted in the aviation industry. Every micro spline shaft we produce undergoes the same rigorous quality protocols as flight-critical components.
2. Advanced Manufacturing Technology
Equipped with world-class machinery including Swiss Schaublin lathes and DMU60T 5-axis machining centers, we achieve tolerances that generic manufacturers simply cannot reach.
3. Rigorous Quality Control (CMM Inspection)
Precision is verified using state-of-the-art Coordinate Measuring Machines (CMM). We provide full inspection reports and material certifications (MTR) with every batch.
4. High Torque, Low Backlash
Optimized spline geometry ensures maximum contact area for superior torque transmission and minimal backlash, extending the service life of your gear systems.
FAQ
Is a micro spline shaft the same as a micro gear shaft?
No. A micro gear shaft usually integrates a gear section with a shaft, while a micro spline shaft uses a splined or tooth-profile section on a small-diameter shaft for torque transmission or fitting.
Can MH manufacture micro spline shafts from samples?
MH can start technical discussion from sample photos or physical samples, but formal production usually requires drawing confirmation or reverse engineering data.
As one of the most professional micro spline shafts manufacturers and suppliers in China, we're featured by quality products and good price. Please rest assured to wholesale high quality micro spline shafts made in China here from our factory.