GearHeads Forum

I happened upon a video of bearing manufacture, a serious kinetic marvel in itself...

https://www.youtube.com/watch?v=7E7n3OtrauU


Eric

Mark,
  Great idea for a dedicated thread. I'm curious, does anyone else feel that modern skateboard bearings have far more friction than those from the past? I remember spinning my skateboard wheels as a kid, they used to spin quite freely. These modern bearings give one or two revolutions. I ...

Just found this ticker on youtube, based on scimitar.....

https://www.youtube.com/watch?v=230dcJ3B_QY




Eric

Dan,
  I'm learning a lot. I just studied up on thrust bearings a bit, there are lots of design options to eliminate friction. Have you found a supplier with a decent price? If you need more than 2 or 3  it's gonna get pricey quick.



Another great suggestion,

Thanks again,

Eric

Dan,
  I noticed the bearing in the video was still shielded. It was suggested in another thread to remove the shields, soak and clean the bearings with mineral spirits and then soak and lubricate them with silicone. Do you go through the same process?

I was wondering if anyone has tried ...

Dan,
    Thanks for taking the time to make the video. Good stuff.

Appreciated,

Eric

Dan,
  That's a great idea to loosen up your bearings!! I've got a fresh box of bearings awaiting treatment.

Thanks for the tip,


Eric

P.S.  I've rung quite a bit of seawater out of my socks as well !!

Thanks Dan,
    I'm questioning the use of bearings in my machine. I use skateboard bearings, shields removed, cleaned and lubricated...but they don't spin like the bearings I remember as a kid.The caged balls in skateboard bearings seem to slow them down. They don't "free wheel" but seem ...

Art,
  I did not want you thinking I was a "free energy" nut 

In the words of a movie astronaut recently stranded on Mars...."You scienced the shit out of it!"

Art,
  Excellent response! Very informative. I do want to explain that I did not add magnets thinking they would pull my vanes or wheel, but the added magnets were there to keep the pawl in the up position for a longer duration, allowing for a longer push.

Man, it is difficult describing ...