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    parijatshr's Avatar
    parijatshr Posts: 1, Reputation: 1
    New Member
    		  
    #1

    Jan 25, 2013, 01:45 AM
    On a refrigerator door, which is weighing 30 kg, need to calculate torque for hinges
    I have a refrigerator of capacity 30 Cu. Ft.
    On this a double pane glass door is mounted, weighing 30 Kg
    There are two hinges to mount this door on cabinet, with 3 screws on each hinge.

    Need to calculate the min. torque required in the screws so that while opening/closing of door torsional movement of hinges could be avoided.

    Cabinet dim. (W 34" x D 30" x H 62") (Foamed cabinet)
    Door dim. (W 33" x D 1.55" x H 61") (Double pane glass door)
    Wt of door 68 lbs
    Hinge axis point (Screw mounting hole center to Hinge pin center) 2.785"
    Hinge material mild steel
    drtom4444's Avatar
    drtom4444 Posts: 3,282, Reputation: 145
    Ultra Member
    		  
    #2

    Jan 26, 2013, 07:26 AM
    Just tighten until snug. You don't torque down screws because you will strip the threads off. Most have three threaded holes in a plate under the sheet metal.
    Handyman2007's Avatar
    Handyman2007 Posts: 988, Reputation: 73
    Senior Member
    		  
    #3

    Feb 7, 2013, 08:02 PM
    Yes. This isn't the crankshaft bearing in a big block Chevy Engine. Just tighten them as snug as you can by hand without over doing it. Check them for tightness after a couple of weeks. You may want to employ some "LokTite" to the threads.
    drtom4444's Avatar
    drtom4444 Posts: 3,282, Reputation: 145
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    #4

    Feb 7, 2013, 11:51 PM
    I love the way you put that.
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