Torque Calculation - End Supported

[Nstubbe]

I am trying calculate amount of torque is needed to rotate and load 11000 lbs end support by pillar block bearing. Can anyone help?

Thanks

Nicholas

 

[Timelord]

Nstubbe,

You are not supplying enough information. If you want help here you must fully explain the problem.

Timelord

 

[Nstubbe]

I have 11000 lbs on load evenly distributed along the 144" backbone. I have enough input torque to drive but the gear box is undersize. Therefore I understand that CG is important...CG is 10" or 15" from rotating axis.

 

[Timelord]

Nstubbe,

That is a small start. The max torque from the imbalance is Force times Distance or 15 inches times 11,000 lbs equals 13,750 ft-lbs max. This will vary sinusoidally as the load rotates. Then there are other considerations such as bearing rolling friction, inertia load at startup, drive train efficiency etc. To arrive at a total torque load all these contributions need to be considered. More information is still required.

Timelord

 

[tbuelna]

Timelord,

And don't neglect to apply a suitable factor of safety to the required drive torque. It should be a minimum of 2.0. And much higher than 2.0 if the machine operates in close proximity to personnel.