Muller Dynamo

[tysb3]

Hey guys im looking for a good rotor bearing anyone have any ideas or maybe link to order, been holding back but its time, got to play with this myself.
David

[gotoluc]

Hey guys im looking for a good rotor bearing anyone have any ideas or maybe link to order, been holding back but its time, got to play with this myself.
David

The best available

http://cgi.ebay.com/Full-Ceramic-Skate-Balls-Bearing-608-8mm-22mm-7-Ball-/150218727165?pt=LH_DefaultDomain_0&hash=item22f9bbdefd

[e2matrix]

I think that is the best bearing for skating.  And maybe a vertical rotor but will it handle high RPM?   I read that skate bearings may not be best though for a horizontal rotor like this build Romero did.  A thrust bearing was mentioned as a good choice.  I also think any VCR head bearings as tysb3 mentioned would be a very good choice.  You can probably pick up a used VCR for a lot less than the cost of one of those skate bearings and then you can scavenge a pile of other good electronic parts too

[wings]

@ tysb3
good choice but you have to manage the non horizontal fixing point!

[Magluvin]

I think that is the best bearing for skating.  And maybe a vertical rotor but will it handle high RPM?   I read that skate bearings may not be best though for a horizontal rotor like this build Romero did.  A thrust bearing was mentioned as a good choice.  I also think any VCR head bearings as tysb3 mentioned would be a very good choice.  You can probably pick up a used VCR for a lot less than the cost of one of those skate bearings and then you can scavenge a pile of other good electronic parts too

Well with the type of pressures a skateboard endures, I would sat that these bearings could be champions here.

Boca Bearing has ceramics. Last I looked was back in the time of the Whipmag. They have a lube called dry lube for them.

I had not gotten any for the project, but was interested at the time.

I used bearings from a hobby shop. I thoroughly cleaned out the grease and worked in graphite powder.  I had gotten rundown times of over 14 min from 1000rpms.  I have vids on YT, 2 in a row as there was the 10 min time limit.  It ended up much better than dry or any oils I had tried.

http://www.youtube.com/watch?v=FiGjK3P7JBY

http://www.youtube.com/watch?v=eVXtRSxm73g

Mags