Jib Cranes

Looking into building a shop soon. Was wanting to install a small jib crane. Not sure if I will wall mount or have a freestanding. My question is, what kind of bearing should i use for the top pivot? Was thinking of a tapered "timken" type bearing. I would like to be able to lift 1/2 to maybe 3/4 ton max. I beam arm, with about six foot arm length of reach. I am not an engineer by any means, but would think I would only need a bearing on the upper support as that is where most of the thrust would be. Hope I worded this right, and isnt too confusing. It all sounds legit in my mind! Looking for any advice or from anyone who has built or is knowledgeable in this area.



Thanks in advance.