Audited Supplier
FD-SG0020
Aerospace Industry, Agricultural Equipment, Automotive Industry, Construction Industry, Marine Industry, Medical Industry, Robotics Industry, Industrial Machinery Area
CE, EPA, GS, ISO9001, RoHS, Industrial Machinery Area
High Corrosion Resistance
IT01-IT5
0.001-0.005mm
0.63-0.16μm
Alloy Steel
10 Splines
Black Oxide Coating
IT6
Helical Spline Shaft
Planetary Gear Reducer + DC/AC Motor Combination
5:1 - 200:1 (Customizable)
50n·m - 500n·m (Model - Dependent)
Flange Mount (4 - M6 Holes) / Shaft Mount (with Lo
10,000 Hours (L10 Life at 20% Load)
Jinjiang Feida
Custom Wooden Box + Metal Support Frame
The module is 3mm, the number of teeth is 20, the
Quanzhou
1601002090
Product Description
1. Product Overview
A spline shaft is a mechanical transmission component that uses longitudinal keyways on the shaft surface to engage with matching hub keyways, enabling torque transmission and synchronous rotation. Some types also support axial sliding (e.g., gearbox gears), featuring high load capacity, good centering, and guidance.
2. Core Parameters & Classification
1. Main Types & Features
| Type | Tooth Shape | Features | Application Scenarios |
|---|---|---|---|
| Straight Spline Shaft | Rectangular teeth | Multi-tooth load-bearing, low stress concentration, easy to machine, high precision | Automotive, machine tools, agricultural machinery |
| Involute Spline Shaft | Involute teeth | Automatic centering, uniform tooth stress, high strength, long service life | Heavy-duty equipment, aerospace, large machinery |
2. Basic Parameters
| Item | Parameter Range | Note |
|---|---|---|
| Material | 40Cr, stainless steel, aluminum alloy, titanium alloy, etc. | Commonly used: 40Cr (quenched to HRC 45-50) |
| Number of Teeth | 6-40 teeth (common: 6, 12, 16, 25 teeth) | Light/medium series standards |
| Centering Method | OD centering, ID centering, tooth side centering | Straight splines often use OD centering |
| Module | 1-10 mm | Common for involute splines |
3. Processing Technology Comparison
| Process | Equipment | Precision | Efficiency | Application Scenarios |
|---|---|---|---|---|
| Hobbing | Spline hob + milling/gear hobbing machine | High | High | Mass production (internal/external splines) |
| Milling | Universal milling machine + forming cutter | Medium-low | Low | Prototypes/small batches (rough machining) |
| Grinding | Spline grinding machine + forming wheel | Highest | Medium | Hardened splines/high-precision ID centering |
| Cold Forming | Special cold heading machine | Medium-high | High | High material utilization (plastic deformation) |
4. Typical Product Specifications
1. Straight Spline Shaft (Examples)
| Model | OD (mm) | ID (mm) | Teeth | Length (mm) | Application |
|---|---|---|---|---|---|
| 6-25-100 | 25 | 20 | 6 | 100 | Automotive drive shaft |
| 12-35-200 | 35 | 30 | 12 | 200 | Machine tool gearbox |
2. Involute Spline Shaft (Examples)
| Module | Pressure Angle | Teeth | Precision Grade | Application Scenarios |
|---|---|---|---|---|
| 2 | 30° | 24 | IT6-IT7 | Aircraft engine transmission |
5. Application Fields
- Automotive: Gearbox shafts, steering system shafts, half-shafts
- Machine Tools: Lead screws, dividing head shafts
- Aerospace: Engine drive shafts, landing gear components
- Industrial Equipment: Reducers, conveyors, hydraulic systems
- Special Scenarios: Telescopic spline shafts (e.g., off-road vehicle drive shafts)
6. Quality & Testing
- Heat Treatment: Quenching + tempering, surface hardness HRC 45-50, core toughness retained
- Testing Items: Tooth profile accuracy, concentricity, surface roughness, torque test
- Standards: Compliant with GB/T 1144 (straight splines), GB/T 3478 (involute splines)
7. Customization Services
Support non-standard customization for:
- Materials: Stainless steel, aluminum alloy, etc.
- Dimensions: Extra-long shafts (≤1800 mm), micro shafts (≤10 mm)
- Surface Treatment: Chrome plating, zinc plating, black oxide
Note: The above parameters are general specifications. Specific products can be customized according to equipment requirements.
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