Frictionless Bearing System Project

Still not 100% frictionless, but closer to the goal. I'm not using the correct type of magnets. The magnet I'm using were leftover from another project. I have a couple more ideas on how to make these do the job, but if I can't get it to work correctly I'm going to have to order magnets that will work better with this project. I am looking for people in the Ontario California area to meet with to discuss ideas and brainstorm. I'd really like to meet with someone who has Bedini motor experience.

Category:

Science & Technology

Tags:

• friction
• frictionless
• bearing
• magnet
• motor

[shawnki91]

Very nice work; you've taken a great idea, and have a neat apparatus. The system looks a little unstable, but I suppose that is due to the PVC being cut unevenly. Have you made any modifications since this video?

[rockytube]

@shawnki91 : I believe the instability you are referring to is due to a balancing problem in the outer cylinder. Remember, this is only an early prototype made from parts I had laying around my house.

[630MillionGods]

Even if you get rid of mechanical friction by using vacuum, there will be magnetic drag. It wont spin forever, IMHO.

[rockytube]

@630MillionGods: Of course, anything spinning is going to have drag if it's not in a vacuum, so I'm not worried about that. I'm just trying to get the bearing systems to be frictionless. Magnetic fields attract, or repel. But repelling fields, one field riding on the other, have NO friction. Take two strong magnets with like pole facing each other and try to push them together. It's very hard to keep them lined up.

[thatdamndean]

nice work!!! i like it.

[rockytube]

Thank you!

[ChumpusRex]

@rockytube The instability doesn't look like a manufacturing problem. Magnetic bearings of this type are ALWAYS unstable - it is impossible to make them stable (due to the nature of magnetic fields - this can be proven mathematically). You can get 2 axes stable (i.e. you can get height stable, and left-right) but the 3rd must always be unstable.

The only way to do it is to use a mechanical bearing in the 3rd direction, or use an automatic control system (e.g. electornics + electromagnet).

[260830107]

would it be 100% frictionless if its in a vacuum?

[prostreetchevyguy]

Very well done, but don't forget the friction from the air around it. A vacuum would be a nice addition, if you have the means!

[camelsonhorizon]

you will like this. (though weight for momentum is preferred in a moving system) Maybe use a winding or coil that has electricity flowing to make the Stabilizing field. wrapin' wire around the cd tower, instead of all those magnets

[630MillionGods]

Even if you get rid of mechanical friction by using vacuum, there will be magnetic drag. It wont spin forever, IMHO.