The formula to calculate Speed of Guide Pulley (NP) is:
\[ N_P = N_D \cdot \frac{d}{d_1} \]
Where:
Speed of Guide Pulley, having different faces of different diameters giving various speeds according to the face the belt passes over.
Speed of Drum Pulley is having different faces of different diameters giving various speeds according to the face the belt passes over.
The diameter of Drum Pulley is a chord that runs through the center point of the circle.
The diameter of Guide Pulley is a chord that runs through the center point of the circle.
Let's assume the following values:
Using the formula:
\[ N_P = N_D \cdot \frac{d}{d_1} \]
Evaluating:
\[ N_P = 0.733333333333333 \cdot \frac{23}{20} \]
The Speed of Guide Pulley is 0.843333333333333 Hz.
Speed of Drum Pulley (ND) | Diameter of Drum Pulley (d) | Diameter of Guide Pulley (d1) | Speed of Guide Pulley (NP) |
---|---|---|---|
0.7 | 20 | 18 | 0.777777777777778 |
0.7 | 20 | 19 | 0.736842105263158 |
0.7 | 20 | 20 | 0.700000000000000 |
0.7 | 20 | 21 | 0.666666666666667 |
0.7 | 20 | 22 | 0.636363636363636 |
0.7 | 21 | 18 | 0.816666666666667 |
0.7 | 21 | 19 | 0.773684210526316 |
0.7 | 21 | 20 | 0.735000000000000 |
0.7 | 21 | 21 | 0.700000000000000 |
0.7 | 21 | 22 | 0.668181818181818 |
0.7 | 22 | 18 | 0.855555555555556 |
0.7 | 22 | 19 | 0.810526315789474 |
0.7 | 22 | 20 | 0.770000000000000 |
0.7 | 22 | 21 | 0.733333333333333 |
0.7 | 22 | 22 | 0.700000000000000 |
0.7 | 23 | 18 | 0.894444444444444 |
0.7 | 23 | 19 | 0.847368421052632 |
0.7 | 23 | 20 | 0.805000000000000 |
0.7 | 23 | 21 | 0.766666666666667 |
0.7 | 23 | 22 | 0.731818181818182 |
0.7 | 24 | 18 | 0.933333333333333 |
0.7 | 24 | 19 | 0.884210526315789 |
0.7 | 24 | 20 | 0.840000000000000 |
0.7 | 24 | 21 | 0.800000000000000 |
0.7 | 24 | 22 | 0.763636363636364 |
0.7 | 25 | 18 | 0.972222222222222 |
0.7 | 25 | 19 | 0.921052631578947 |
0.7 | 25 | 20 | 0.875000000000000 |
0.7 | 25 | 21 | 0.833333333333333 |
0.7 | 25 | 22 | 0.795454545454546 |
0.71 | 20 | 18 | 0.788888888888889 |
0.71 | 20 | 19 | 0.747368421052632 |
0.71 | 20 | 20 | 0.710000000000000 |
0.71 | 20 | 21 | 0.676190476190476 |
0.71 | 20 | 22 | 0.645454545454545 |
0.71 | 21 | 18 | 0.828333333333333 |
0.71 | 21 | 19 | 0.784736842105263 |
0.71 | 21 | 20 | 0.745500000000000 |
0.71 | 21 | 21 | 0.710000000000000 |
0.71 | 21 | 22 | 0.677727272727273 |
0.71 | 22 | 18 | 0.867777777777778 |
0.71 | 22 | 19 | 0.822105263157895 |
0.71 | 22 | 20 | 0.781000000000000 |
0.71 | 22 | 21 | 0.743809523809524 |
0.71 | 22 | 22 | 0.710000000000000 |
0.71 | 23 | 18 | 0.907222222222222 |
0.71 | 23 | 19 | 0.859473684210526 |
0.71 | 23 | 20 | 0.816500000000000 |
0.71 | 23 | 21 | 0.777619047619048 |
0.71 | 23 | 22 | 0.742272727272727 |
0.71 | 24 | 18 | 0.946666666666667 |
0.71 | 24 | 19 | 0.896842105263158 |
0.71 | 24 | 20 | 0.852000000000000 |
0.71 | 24 | 21 | 0.811428571428571 |
0.71 | 24 | 22 | 0.774545454545454 |
0.71 | 25 | 18 | 0.986111111111111 |
0.71 | 25 | 19 | 0.934210526315790 |
0.71 | 25 | 20 | 0.887500000000000 |
0.71 | 25 | 21 | 0.845238095238095 |
0.71 | 25 | 22 | 0.806818181818182 |
0.72 | 20 | 18 | 0.800000000000000 |
0.72 | 20 | 19 | 0.757894736842105 |
0.72 | 20 | 20 | 0.720000000000000 |
0.72 | 20 | 21 | 0.685714285714286 |
0.72 | 20 | 22 | 0.654545454545455 |
0.72 | 21 | 18 | 0.840000000000000 |
0.72 | 21 | 19 | 0.795789473684211 |
0.72 | 21 | 20 | 0.756000000000000 |
0.72 | 21 | 21 | 0.720000000000000 |
0.72 | 21 | 22 | 0.687272727272727 |
0.72 | 22 | 18 | 0.880000000000000 |
0.72 | 22 | 19 | 0.833684210526316 |
0.72 | 22 | 20 | 0.792000000000000 |
0.72 | 22 | 21 | 0.754285714285714 |
0.72 | 22 | 22 | 0.720000000000000 |
0.72 | 23 | 18 | 0.920000000000000 |
0.72 | 23 | 19 | 0.871578947368421 |
0.72 | 23 | 20 | 0.828000000000000 |
0.72 | 23 | 21 | 0.788571428571429 |
0.72 | 23 | 22 | 0.752727272727273 |
0.72 | 24 | 18 | 0.960000000000000 |
0.72 | 24 | 19 | 0.909473684210526 |
0.72 | 24 | 20 | 0.864000000000000 |
0.72 | 24 | 21 | 0.822857142857143 |
0.72 | 24 | 22 | 0.785454545454545 |
0.72 | 25 | 18 | 1.000000000000000 |
0.72 | 25 | 19 | 0.947368421052632 |
0.72 | 25 | 20 | 0.900000000000000 |
0.72 | 25 | 21 | 0.857142857142857 |
0.72 | 25 | 22 | 0.818181818181818 |
0.73 | 20 | 18 | 0.811111111111111 |
0.73 | 20 | 19 | 0.768421052631579 |
0.73 | 20 | 20 | 0.730000000000000 |
0.73 | 20 | 21 | 0.695238095238095 |
0.73 | 20 | 22 | 0.663636363636364 |
0.73 | 21 | 18 | 0.851666666666667 |
0.73 | 21 | 19 | 0.806842105263158 |
0.73 | 21 | 20 | 0.766500000000000 |
0.73 | 21 | 21 | 0.730000000000000 |
0.73 | 21 | 22 | 0.696818181818182 |
0.73 | 22 | 18 | 0.892222222222222 |
0.73 | 22 | 19 | 0.845263157894737 |
0.73 | 22 | 20 | 0.803000000000000 |
0.73 | 22 | 21 | 0.764761904761905 |
0.73 | 22 | 22 | 0.730000000000000 |
0.73 | 23 | 18 | 0.932777777777778 |
0.73 | 23 | 19 | 0.883684210526316 |
0.73 | 23 | 20 | 0.839500000000000 |
0.73 | 23 | 21 | 0.799523809523810 |
0.73 | 23 | 22 | 0.763181818181818 |
0.73 | 24 | 18 | 0.973333333333333 |
0.73 | 24 | 19 | 0.922105263157895 |
0.73 | 24 | 20 | 0.876000000000000 |
0.73 | 24 | 21 | 0.834285714285714 |
0.73 | 24 | 22 | 0.796363636363636 |
0.73 | 25 | 18 | 1.013888888888889 |
0.73 | 25 | 19 | 0.960526315789474 |
0.73 | 25 | 20 | 0.912500000000000 |
0.73 | 25 | 21 | 0.869047619047619 |
0.73 | 25 | 22 | 0.829545454545455 |
0.74 | 20 | 18 | 0.822222222222222 |
0.74 | 20 | 19 | 0.778947368421053 |
0.74 | 20 | 20 | 0.740000000000000 |
0.74 | 20 | 21 | 0.704761904761905 |
0.74 | 20 | 22 | 0.672727272727273 |
0.74 | 21 | 18 | 0.863333333333333 |
0.74 | 21 | 19 | 0.817894736842105 |
0.74 | 21 | 20 | 0.777000000000000 |
0.74 | 21 | 21 | 0.740000000000000 |
0.74 | 21 | 22 | 0.706363636363636 |
0.74 | 22 | 18 | 0.904444444444445 |
0.74 | 22 | 19 | 0.856842105263158 |
0.74 | 22 | 20 | 0.814000000000000 |
0.74 | 22 | 21 | 0.775238095238095 |
0.74 | 22 | 22 | 0.740000000000000 |
0.74 | 23 | 18 | 0.945555555555556 |
0.74 | 23 | 19 | 0.895789473684211 |
0.74 | 23 | 20 | 0.851000000000000 |
0.74 | 23 | 21 | 0.810476190476191 |
0.74 | 23 | 22 | 0.773636363636364 |
0.74 | 24 | 18 | 0.986666666666667 |
0.74 | 24 | 19 | 0.934736842105263 |
0.74 | 24 | 20 | 0.888000000000000 |
0.74 | 24 | 21 | 0.845714285714286 |
0.74 | 24 | 22 | 0.807272727272727 |
0.74 | 25 | 18 | 1.027777777777778 |
0.74 | 25 | 19 | 0.973684210526316 |
0.74 | 25 | 20 | 0.925000000000000 |
0.74 | 25 | 21 | 0.880952380952381 |
0.74 | 25 | 22 | 0.840909090909091 |
0.75 | 20 | 18 | 0.833333333333333 |
0.75 | 20 | 19 | 0.789473684210526 |
0.75 | 20 | 20 | 0.750000000000000 |
0.75 | 20 | 21 | 0.714285714285714 |
0.75 | 20 | 22 | 0.681818181818182 |
0.75 | 21 | 18 | 0.875000000000000 |
0.75 | 21 | 19 | 0.828947368421053 |
0.75 | 21 | 20 | 0.787500000000000 |
0.75 | 21 | 21 | 0.750000000000000 |
0.75 | 21 | 22 | 0.715909090909091 |
0.75 | 22 | 18 | 0.916666666666667 |
0.75 | 22 | 19 | 0.868421052631579 |
0.75 | 22 | 20 | 0.825000000000000 |
0.75 | 22 | 21 | 0.785714285714286 |
0.75 | 22 | 22 | 0.750000000000000 |
0.75 | 23 | 18 | 0.958333333333333 |
0.75 | 23 | 19 | 0.907894736842105 |
0.75 | 23 | 20 | 0.862500000000000 |
0.75 | 23 | 21 | 0.821428571428572 |
0.75 | 23 | 22 | 0.784090909090909 |
0.75 | 24 | 18 | 1.000000000000000 |
0.75 | 24 | 19 | 0.947368421052632 |
0.75 | 24 | 20 | 0.900000000000000 |
0.75 | 24 | 21 | 0.857142857142857 |
0.75 | 24 | 22 | 0.818181818181818 |
0.75 | 25 | 18 | 1.041666666666667 |
0.75 | 25 | 19 | 0.986842105263158 |
0.75 | 25 | 20 | 0.937500000000000 |
0.75 | 25 | 21 | 0.892857142857143 |
0.75 | 25 | 22 | 0.852272727272727 |
0.76 | 20 | 18 | 0.844444444444445 |
0.76 | 20 | 19 | 0.800000000000000 |
0.76 | 20 | 20 | 0.760000000000000 |
0.76 | 20 | 21 | 0.723809523809524 |
0.76 | 20 | 22 | 0.690909090909091 |
0.76 | 21 | 18 | 0.886666666666667 |
0.76 | 21 | 19 | 0.840000000000000 |
0.76 | 21 | 20 | 0.798000000000000 |
0.76 | 21 | 21 | 0.760000000000000 |
0.76 | 21 | 22 | 0.725454545454546 |
0.76 | 22 | 18 | 0.928888888888889 |
0.76 | 22 | 19 | 0.880000000000000 |
0.76 | 22 | 20 | 0.836000000000000 |
0.76 | 22 | 21 | 0.796190476190476 |
0.76 | 22 | 22 | 0.760000000000000 |
0.76 | 23 | 18 | 0.971111111111111 |
0.76 | 23 | 19 | 0.920000000000000 |
0.76 | 23 | 20 | 0.874000000000000 |
0.76 | 23 | 21 | 0.832380952380953 |
0.76 | 23 | 22 | 0.794545454545455 |
0.76 | 24 | 18 | 1.013333333333333 |
0.76 | 24 | 19 | 0.960000000000000 |
0.76 | 24 | 20 | 0.912000000000000 |
0.76 | 24 | 21 | 0.868571428571429 |
0.76 | 24 | 22 | 0.829090909090909 |
0.76 | 25 | 18 | 1.055555555555556 |
0.76 | 25 | 19 | 1.000000000000000 |
0.76 | 25 | 20 | 0.950000000000000 |
0.76 | 25 | 21 | 0.904761904761905 |
0.76 | 25 | 22 | 0.863636363636364 |
0.77 | 20 | 18 | 0.855555555555556 |
0.77 | 20 | 19 | 0.810526315789474 |
0.77 | 20 | 20 | 0.770000000000000 |
0.77 | 20 | 21 | 0.733333333333333 |
0.77 | 20 | 22 | 0.700000000000000 |
0.77 | 21 | 18 | 0.898333333333333 |
0.77 | 21 | 19 | 0.851052631578948 |
0.77 | 21 | 20 | 0.808500000000000 |
0.77 | 21 | 21 | 0.770000000000000 |
0.77 | 21 | 22 | 0.735000000000000 |
0.77 | 22 | 18 | 0.941111111111111 |
0.77 | 22 | 19 | 0.891578947368421 |
0.77 | 22 | 20 | 0.847000000000000 |
0.77 | 22 | 21 | 0.806666666666667 |
0.77 | 22 | 22 | 0.770000000000000 |
0.77 | 23 | 18 | 0.983888888888889 |
0.77 | 23 | 19 | 0.932105263157895 |
0.77 | 23 | 20 | 0.885500000000000 |
0.77 | 23 | 21 | 0.843333333333333 |
0.77 | 23 | 22 | 0.805000000000000 |
0.77 | 24 | 18 | 1.026666666666667 |
0.77 | 24 | 19 | 0.972631578947368 |
0.77 | 24 | 20 | 0.924000000000000 |
0.77 | 24 | 21 | 0.880000000000000 |
0.77 | 24 | 22 | 0.840000000000000 |
0.77 | 25 | 18 | 1.069444444444444 |
0.77 | 25 | 19 | 1.013157894736842 |
0.77 | 25 | 20 | 0.962500000000000 |
0.77 | 25 | 21 | 0.916666666666667 |
0.77 | 25 | 22 | 0.875000000000000 |
0.78 | 20 | 18 | 0.866666666666667 |
0.78 | 20 | 19 | 0.821052631578947 |
0.78 | 20 | 20 | 0.780000000000000 |
0.78 | 20 | 21 | 0.742857142857143 |
0.78 | 20 | 22 | 0.709090909090909 |
0.78 | 21 | 18 | 0.910000000000000 |
0.78 | 21 | 19 | 0.862105263157895 |
0.78 | 21 | 20 | 0.819000000000000 |
0.78 | 21 | 21 | 0.780000000000000 |
0.78 | 21 | 22 | 0.744545454545455 |
0.78 | 22 | 18 | 0.953333333333334 |
0.78 | 22 | 19 | 0.903157894736842 |
0.78 | 22 | 20 | 0.858000000000000 |
0.78 | 22 | 21 | 0.817142857142857 |
0.78 | 22 | 22 | 0.780000000000000 |
0.78 | 23 | 18 | 0.996666666666667 |
0.78 | 23 | 19 | 0.944210526315790 |
0.78 | 23 | 20 | 0.897000000000000 |
0.78 | 23 | 21 | 0.854285714285714 |
0.78 | 23 | 22 | 0.815454545454545 |
0.78 | 24 | 18 | 1.040000000000000 |
0.78 | 24 | 19 | 0.985263157894737 |
0.78 | 24 | 20 | 0.936000000000000 |
0.78 | 24 | 21 | 0.891428571428572 |
0.78 | 24 | 22 | 0.850909090909091 |
0.78 | 25 | 18 | 1.083333333333333 |
0.78 | 25 | 19 | 1.026315789473684 |
0.78 | 25 | 20 | 0.975000000000000 |
0.78 | 25 | 21 | 0.928571428571429 |
0.78 | 25 | 22 | 0.886363636363637 |
0.79 | 20 | 18 | 0.877777777777778 |
0.79 | 20 | 19 | 0.831578947368421 |
0.79 | 20 | 20 | 0.790000000000000 |
0.79 | 20 | 21 | 0.752380952380952 |
0.79 | 20 | 22 | 0.718181818181818 |
0.79 | 21 | 18 | 0.921666666666667 |
0.79 | 21 | 19 | 0.873157894736842 |
0.79 | 21 | 20 | 0.829500000000000 |
0.79 | 21 | 21 | 0.790000000000000 |
0.79 | 21 | 22 | 0.754090909090909 |
0.79 | 22 | 18 | 0.965555555555556 |
0.79 | 22 | 19 | 0.914736842105263 |
0.79 | 22 | 20 | 0.869000000000000 |
0.79 | 22 | 21 | 0.827619047619048 |
0.79 | 22 | 22 | 0.790000000000000 |
0.79 | 23 | 18 | 1.009444444444444 |
0.79 | 23 | 19 | 0.956315789473684 |
0.79 | 23 | 20 | 0.908500000000000 |
0.79 | 23 | 21 | 0.865238095238095 |
0.79 | 23 | 22 | 0.825909090909091 |
0.79 | 24 | 18 | 1.053333333333333 |
0.79 | 24 | 19 | 0.997894736842105 |
0.79 | 24 | 20 | 0.948000000000000 |
0.79 | 24 | 21 | 0.902857142857143 |
0.79 | 24 | 22 | 0.861818181818182 |
0.79 | 25 | 18 | 1.097222222222222 |
0.79 | 25 | 19 | 1.039473684210526 |
0.79 | 25 | 20 | 0.987500000000000 |
0.79 | 25 | 21 | 0.940476190476191 |
0.79 | 25 | 22 | 0.897727272727273 |
0.8 | 20 | 18 | 0.888888888888889 |
0.8 | 20 | 19 | 0.842105263157895 |
0.8 | 20 | 20 | 0.800000000000000 |
0.8 | 20 | 21 | 0.761904761904762 |
0.8 | 20 | 22 | 0.727272727272727 |
0.8 | 21 | 18 | 0.933333333333334 |
0.8 | 21 | 19 | 0.884210526315790 |
0.8 | 21 | 20 | 0.840000000000000 |
0.8 | 21 | 21 | 0.800000000000000 |
0.8 | 21 | 22 | 0.763636363636364 |
0.8 | 22 | 18 | 0.977777777777778 |
0.8 | 22 | 19 | 0.926315789473684 |
0.8 | 22 | 20 | 0.880000000000000 |
0.8 | 22 | 21 | 0.838095238095238 |
0.8 | 22 | 22 | 0.800000000000000 |
0.8 | 23 | 18 | 1.022222222222222 |
0.8 | 23 | 19 | 0.968421052631579 |
0.8 | 23 | 20 | 0.920000000000000 |
0.8 | 23 | 21 | 0.876190476190476 |
0.8 | 23 | 22 | 0.836363636363636 |
0.8 | 24 | 18 | 1.066666666666667 |
0.8 | 24 | 19 | 1.010526315789474 |
0.8 | 24 | 20 | 0.960000000000000 |
0.8 | 24 | 21 | 0.914285714285714 |
0.8 | 24 | 22 | 0.872727272727273 |
0.8 | 25 | 18 | 1.111111111111111 |
0.8 | 25 | 19 | 1.052631578947369 |
0.8 | 25 | 20 | 1.000000000000000 |
0.8 | 25 | 21 | 0.952380952380953 |
0.8 | 25 | 22 | 0.909090909090909 |