We need to offer a drive ( GearMotor) for a Mixer
with Blade sweep Dia. of 6.56 Ft., Height of Stirrer shaft is 8.202 Ft., rpm - 60, Viscosity - 30 poise, but there is no bearing at the bottom.
The question is what would be the KW rating of the Motor and what size of
Bearing should be there at the Gearbox output shaft ?
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Re:
21 February 2008 at 1:29pmWithout more specific information about the impeller type and application, I was forced to be conservative, but reasonable.
Minimum motor size = 140 kW
Minimum shaft diameter = 163 mm
Minimum torque = 22,200 N-m
Minimum bending moment = 25,200 N-mBearing size will depend on spacing between bearings, but can be sized from the torque and bending loads.
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