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SevenToFive

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The motor is a 2HP brakemotor, 1750rpm at 60Hz, 460VAC 3phase, 1.65 amps motor tested.

The gearbox has a 200:1 ratio rated for 0.093HP with an input speed of 258rpm, with a standard 1750rpm input speed the same gearbox is rated for 0.633HP.

Any help in clearing up how to calculate maximum input torque would be greatly appreciated. Thanks to all who reply.