The formula to calculate the Angle Made by Belt with Vertical Axis for Cross Belt Drive is:
\[ \alpha = \frac{r_2 + r_1}{x} \]
Angle made by belt with vertical axis is the angle made by a line joining the center of the pulley to the belt with vertical axis. Radii of Smaller Pulley is a straight line from the center to the circumference of pulley. Radii of Larger Pulley is a straight line from the center to the circumference of pulley. Distance between centers of two pulleys is the horizontal distance between larger and smaller pulley.
Let's assume the following values:
Using the formula:
\[ \alpha = \frac{6 + 10}{0.55} = 29.0909090909091 \]
| Radii of Smaller Pulley (r2) | Radii of Larger Pulley (r1) | Distance Between Centers of Two Pulleys (x) | Angle Made by Belt with Vertical Axis (α) |
|---|---|---|---|
| 5 | 10 | 0.55 | 27.272727272727270 |
| 5.5 | 10 | 0.55 | 28.181818181818180 |
| 6 | 10 | 0.55 | 29.090909090909090 |
| 6.5 | 10 | 0.55 | 29.999999999999996 |
| 7 | 10 | 0.55 | 30.909090909090907 |