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This is a solar tracker The top weight is about 6 kg What is the minimum torque required to rotate the upper part? What shaft is needed? And the diameter of the gear?enter image description here

Mostafa Asghari
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  • What bearings? Gear diameters look chosen... Do a search for Homepower magazine and they reported on several. – Solar Mike Aug 22 '24 at 16:33
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    Minimum torque will depend on the friction, the moment of inertia of the system and the maximum angular acceleration required. – Transistor Aug 22 '24 at 22:36

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