How To
Calculate The Torque Needed For Your Application
Torque exerted by the panel at any given angle
is:
Torque = Weight Of
Panel x Length From The Axis Of Rotation To The
Center Of Gravity x Cosine Of The Angle
If the weight of the panel is evenly
distributed, we can assume that the CG is in the
center of the panel. Therefore, the length
from the axis of rotation to the center of
gravity is equal to half the length of the
panel.
For the angle, enter 0 if you want the panel to hold throughout the entire range of motion. If you want the hinge to hold in such a way that the panel starts to fall at a certain angle, enter that angle for your calculation.
Example:
Weight Of Panel = 2 lb
Length Of Panel = 10 in
Length To CG = 5 in (Assuming Weight Is Evenly
Distributed)
Minimum Angle Required To Hold The Panel =
30° (If you want the panel to fall at about 30° to
closing)
Minimum Torque
Required = 2 lb X 5 in X Cos 30° = 8.66 in.lb
Minimum Angle Required To Hold The Panel = 0°
(If you want the panel to hold throughout the entire range of
motion)
Minimum Torque
Required = 2 lb X 5 in X Cos 0° = 10.00 in.lb |