Load bearing capacity of a friction hinge?

AI Thread Summary
The discussion focuses on calculating the load acting on a friction hinge for a 4.5 lbs door with specific dimensions. Concerns are raised about the strength of using a single hinge, with suggestions that two hinges would be ideal for better load distribution. However, space limitations prevent the installation of additional hinges in this case. The door will remain closed most of the time, only opening for maintenance twice a year. Overall, the conversation emphasizes the importance of hinge arrangement in relation to load capacity.
RCAN
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The door is 4.5 lbs evenly distributed. Width is 7" and length is 19". The door is mounted by using a friction hinge at the center . How to calculate the total load acting on the hinge? What is the maximum load bearing capacity of the hinge? Length of hinge is 3.2" and diameter of pin is .230 inches, leaf thickness is .06".
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That is not the best arrangement for a hinge if you are worried about strength . Ideally you should have two hinges - one at the top of the door and one at the bottom .
 
Agree with your point regarding two hinges. Here in my application space is limited to provide hinges at top and bottom. The door will be in closed condition always and open only for service (max two times a year)
 

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