The system that I'm working on has a rotating cylinder (cleaning head). It needs to rotate vertically between two arms, much like a cleaning brush in a car wash.
Note: I have not considered how the shafts of the cleaning head will be connected to the motor exactly but it would either be directly connected to a coupler or with a right-angled gearbox.
I have added some illustrations just in case.
Specifications of cleaning head:
Weight : 4~5kg
Length : 1.5 m
Rpm : 100 RPM MAX
I have done a bit of research and I know that the shafts need to be shouldered but how do I make one end of the shaft fixed? Tapered? Have a screw on the end of the shaft and lock the bearing with a washer and a lock nut?
Also, I'm thinking of having the top arm be where the shaft is "fixed" and the bottom be "floating" and connected to the motor. Is this a good decision?
Lastly, what bearings and bearing housings should I use?
Deep groove ball bearings seems to be able to handle the load but since there will be axial and radial loading(the cleaning head will need to tilt about 15 degrees at all times), so roller bearings maybe more suitable. I'm not certain.
There are split plummer (pillow) block housings and flanged housings, which is better for my use?