I've designed a table with an adjustable shelf. I feel as if I've researched the names and techniques for what kind of gear system to implement, but I need the experience of someone with knowledge of the subject to help me finalize my decisions.
My questions pertain to the gear and crank system.
1 -The shaft in the design is 56" long. The shelf will hold approximately 30 pounds of equipment. What thickness should the shaft be?
2 - For mounting the shaft, I'm currently looking at these: Hub City FB260URX1/2 Flange Block Mounted Bearing - *can't post more that 2 links yet...
I'm just looking for verification that this is appropraite for my needs.
3 - Based on my research, the gear system is called a Rack and Pinion, but I'm having trouble figuring out what specifically the size and type of gear I should buy. Can someone provide a reference of something that would work for this set up?
4- Lastly, I need advice on how to mount and secure the crank and gears to the shaft. Will some sort of locking collar work? Or do I need something else? I am currently looking at these: Climax Metal 1C-100 Steel One-Piece Clamping Collar - *can't post more that 2 links yet.
That's it for now. I'll edit if clarification is needed.