Involute Splines Calculator Metric
Involute splines are a type of gear tooth profile that provides a smooth, efficient, and quiet operation. The involute splines calculator metric tool helps you calculate and visualize the metric involute splines for your specific gear design.
- Select the radius of the base circle.
- Select the number of teeth.
- Click the ‘Calculate’ button.
The calculation of involute splines involves several steps, including determining the pressure angle, base circle radius, and tooth thickness. The formula for the involute profile is:
x = r * cos(φ) + (r * φ * sin(φ)) / tan(φ)
where x is the distance along the involute, r is the base circle radius, and φ is the angle of rotation.
| Pressure Angle | Base Circle Radius | Tooth Thickness |
|---|---|---|
| 14.5° | 5 | 1.5 |
| 20° | 5 | 1.8 |
| 25° | 5 | 2.1 |
| Teeth | Base Circle Radius | Tooth Thickness |
|---|---|---|
| 20 | 5 | 1.5 |
| 30 | 7.5 | 1.8 |
| 40 | 10 | 2.1 |
- Involute splines are commonly used in power transmission systems, such as gears and racks.
- The pressure angle affects the strength and wear of the gear teeth. A higher pressure angle increases the contact stress but reduces the sliding velocity.
- The number of teeth affects the gear ratio and the overall size of the gear.
What is the difference between involute splines and cycloidal splines?
Involute splines have a constant pressure angle, while cycloidal splines have a variable pressure angle. This results in different contact patterns and performance characteristics.
For more information, see the following authoritative sources: