Side loading of a shaft
Side loading of a shaft
(OP)
We have a possible project of converting a machine with a reducer (gear box) being driven directly by a motor through a shaft coupling. The conversion would move the motor off the centerline of the input shaft and add pulleys and belts to reduce the speed of the reducer's input shaft while keeping the motor speed up.
My question concerns the side loading of the shafts that didn't previously experience this. Are reducers and motors built with the assumption they could be used with belts and the bearings are selected accordingly? Or could it be that the bearings were selected per the application and now we won't be able to offset the motor?
I don't have the nameplate information at this time to contact the manufacturers, I just thought I'd ask before we went too far down this path.
FYI: we're talking about 300 to 500 Hp motors.
My question concerns the side loading of the shafts that didn't previously experience this. Are reducers and motors built with the assumption they could be used with belts and the bearings are selected accordingly? Or could it be that the bearings were selected per the application and now we won't be able to offset the motor?
I don't have the nameplate information at this time to contact the manufacturers, I just thought I'd ask before we went too far down this path.
FYI: we're talking about 300 to 500 Hp motors.





RE: Side loading of a shaft
RE: Side loading of a shaft
Johnny Pellin
RE: Side loading of a shaft
RE: Side loading of a shaft
I'll start by sending you to the same place I was sent with my question - the manufacturer.
The manufacturer of your cable may have some recommendations. My first thought is the 4" pulley seems small for a 3/8" cable if it will be used frequently. Cable hoists use much larger pulleys and the load per length of cable isn't as high.
Isn't this a simple block and tackle? Try looking that up.