I am a little confused on how to calculate the bearing rating and life for a gearbox in a mixer application. The only information that they are providing is the following, using a 1/4HP motor, 0.08 HP expected loading, a max torque of 87.2 in-lbs, 175.8 in-lbs bending max, and 632 psi expected...
I need some help calculating a rough approximation for the amount of torque needed to lift a 3600lb platen. We are planning on using a motor and worm gearbox to drive 4 pinions to lift the platen. I'm looking to move this platen 48 inches in 6 seconds. The pinion is 4" diameter.
Am I...
Is there a formula that I can use to calculate the HP a motor is actually making if all I have is amp draw?
I am trying to size a gearbox, but the customer has no idea what torque is needed. All they know is the motor is drawing 5 amps when it spikes and 3.5 amps when it is running. I am...
I am running into a minor snag and would like to know if I am going in the right direction or not. Most gearbox catalogs rate everything for input HP rather than input torque. Would I be able to calculate the motor HP by rearranging the Torque(in-lb) = HP*63025 / rpm, or in this case...
Working on a project at work for backlash in a gearbox. I need to know the amount of backlash in arc minutes that this particular ratio has. Wondering if my approach is on the right path.
So can calculate the loose tolerance by the amount of end play in the input shaft and output shaft, add...
If I have a 7.5HP motor running at 1750rpm with a pulley and v-belt and connect it to a gearbox, where the right angle worm gearbox sees an input speed of 580rpm, how would I go about sizing the gearbox?
Am I correct to say that I would size the gearbox for the lower input speed and more...
How can l convert an inch dimension to arc minutes? We have a customer who requires a 3 foot diameter roll not move more than an 1/8 inch. I need to convert the 1/8 inch to arc minutes to compare to the backlash in our gearing.
Any help is greatly appreciated.
There is a tank that is 12' 2" long and 65" in diameter that is capable of holding 2000 gallons of liquid asphalt, which is calculated to be 8lbs per gallon, viscosity is 8000CP. There are 8 paddles in this tank that they want to rotate around 25rpm. The diameter of the paddle arms is 60"...
A customer of ours called and is asking for the static and dynamic torque of a right angle worm gearbox, how would I calculate this? Secondly why would this need to be known?
Thank you to all of those who reply.
SevenToFive
JR, I would like to do the simple way of just measuring rather than doing all of the calculations but this unit isn't even built yet and where it is being built is 2500 miles away from me.
Looking through my past work, I think my calculated torque value is way way to high. I am going have to...
I would like to see if I am on the correct path here and didn't miss anything for a project at work. If I am trying to move a cart that weighs 10 tons, this includes the weight of the cart and its load, the wheels of the cart are 10 inches in diameter, and with a 40:1 ratio gearbox I need to...
How does one calculate the amount of HP a motor makes when it is not running at a full 60Hz?
The reason for my asking is a customer wants to use a 1/4HP motor and a gearbox to vary the speed of a conveyor. At a full 60Hz we are figuring 1750rpm for the motor, and through the 7:1 gearbox the...