Profile Shifted Internal & External Spur Gear
No. | Item | Symbol | Formula | Pinion Ext | Gear Int |
|---|---|---|---|---|---|
1 | Module | Design Parameter | 3 | ||
2 | Pressure Angle | Design Parameter | 20° | ||
3 | Number of Teeth | Design Parameter | 16 | 24 | |
4 | Working Centre Distance | Design Parameter | 13.1683 | ||
5 | Coefficient of Profile Shift | Design Parameter Note #1 | 0.0 | 0.5 | |
6 | Difference Coefficient of Profile Shift | 0.5 | |||
7 | Centre Distance (Standard) | 12.000 | |||
8 | Involute Function | 0.014904 | |||
9 | Working Involute Function | 0.034317 | |||
10 | Working Pressure Angle | 31.0937° | |||
11 | Centre Distance Increment Factor | 0.38943 | |||
12 | Pitch Diameter | 48.000 | 72.000 | ||
13 | Base Diameter | 45.105 | 67.658 | ||
14 | Working Pitch Diameter | 52.673 | 79.010 | ||
15 | Addendum | 3.000 | - | ||
- | 1.500 | ||||
17 | Whole Depth | 6.370 | |||
15 | Outside Diameter | 54.000 | - | ||
- | 69.000 | ||||
15 | Root Diameter | 40.500 | - | ||
- | 82.500 | ||||
20 | Total Contact Ratio | Note #2 | 1.6795 | ||
- #1
The values for are manually assigned and normally sum to equal the Difference Coefficient of Profile Shift (Item 6).
- #2