Torque Calculator For Friction Hinges

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 lbLength Of Panel = 10 in
Length To CG = 5 in (Assuming Weight Is Evenly Distributed)
Minimum Angle Required To Hold The Panel = 30Â° (If you want the panel to fall at about 30Â° to closing)
Minimum Torque Required = 2 lb X 5 in X Cos 30Â° = 8.66 in.lb
Minimum Angle Required To Hold The Panel = 0Â° (If you want the panel to hold throughout the entire range of motion)
Minimum Torque Required = 2 lb X 5 in X Cos 0Â° = 10.00 in.lb