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What's_nitro?
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11.14.2008, 07:54 PM

Haha, 3 in stock... I guess everyone else is buying them, too!
   
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rootar
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11.14.2008, 09:06 PM

you guys DO NOT want ceramic bearings in your motors....they will not last no time, ask any pro driver that isnt payed by a bearing company what bearings they run and i garutee they arent ceramics. they will not last at all int he dust and dirt. maybe in tour cars or on carpet, but not anywhere else.
   
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11.15.2008, 12:01 AM

I bet your right about the ceramic bearings but I would still pay the money for a good abec7 standard bearing
   
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rootar
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11.15.2008, 12:26 AM

abec 5 is as good as youll need the tolerance allowance from an abec5 to abec7 is not really needed for use in a hostile enviorenment like our rc cars.... i ran the number the other day on the bearings neu uses and they are only abec3, IMO abec 7s require too much up keep to keep free, great example is my skateboard bearings, have a set of blackpanther abec5s and never cleaned or touched them in 3 years, still roll FOREVER, now my bones abec 7s ceramics in my hosoi bowl board, they are nice, but they require constant cleaning and upkeep and sound horrible after riding anywhere dirty, waste of money imo i could have had two sets of the panthers for the price of the bones.....

if your willing to pay id get that teflon sealed bearing over any of the others from boca, but im not crazy enough to spend $30 on two bearings just yet, besides i have 10 bearings sitting right here so im good for a few years.
   
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What's_nitro?
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11.15.2008, 12:27 AM

Quote:
Originally Posted by rootar View Post
you guys DO NOT want ceramic bearings in your motors....they will not last no time, ask any pro driver that isnt payed by a bearing company what bearings they run and i garutee they arent ceramics. they will not last at all int he dust and dirt. maybe in tour cars or on carpet, but not anywhere else.
Rootar, why is that exactly? Does the ceramic chip when it encounters dirt? I would think not since the ceramic balls are much harder than the dirt. If anything I would think they don't run them because they wear out eventually and they cost much more to replace... Which, if you aren't sponsored by a bearing company, is a bad thing.
   
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11.15.2008, 12:38 AM

I had a set of cramics in a xxx-t and they were great(much better than the losi bearings) but a 3 1/2 pound rc car isnt really putting alot of stress on them like a 11+ pound monster is and I have never had a motor bearing blow on me(so I have never had to replace them) Even the ones in my 7+ year old lehner and hacker are still good and they are the originals.
   
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11.15.2008, 12:40 AM

Forgot to tell you rootar thanks for the info
   
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rootar
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11.15.2008, 01:01 AM

Quote:
Originally Posted by What's_nitro? View Post
Rootar, why is that exactly? Does the ceramic chip when it encounters dirt? I would think not since the ceramic balls are much harder than the dirt. If anything I would think they don't run them because they wear out eventually and they cost much more to replace... Which, if you aren't sponsored by a bearing company, is a bad thing.

the problem is that the ceramic balls are TOO hard. something has to wear in a bearing, because there is no eliminating friction so a ceramic bearing has balls that are alot harder than the race they are running in, so any contaminents will impregnate themselves into the race, and the race will wear out quicker due to the difference in hardness. now an all steel bearing is much more balanced as to what will wear out (everything as a whole) they are also more likely to dislodge contamiments, and what they dont dislodge they "eat" or impregnate so that its not a problem. and with ALL surfaces being of equal hardness there is much less wear to all the components when compared to a ceramic bearing, there is more to it than that,but i dunno how to explain it, im looking for some place that better explains the science behind it. ceramic bearings have their place but just not in electric motors.

and besides call and ask steve neu or his repair guys they'll tell NOT to use ceramic bearings, hands down, and i believe the monster mike himself also warned me on the phone of that same thing (not to use ceramic bearings)....

Last edited by rootar; 11.15.2008 at 01:07 AM.
   
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What's_nitro?
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11.15.2008, 01:06 AM

I see what you're saying. The steel bearings wear evenly and so they fail "slowly" as opposed to catastrophically. What about full ceramics- balls and races made from ceramic compounds? Aside from price I don't see a problem with them...
   
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rootar
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11.15.2008, 01:35 AM

other than they are designed to work no where near dirt and they cots more than most motors nothing lol

i guess you could say they "fail" slower, but more like they have better wear properties and they dont wear themselves out mainly.
   
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What's_nitro?
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11.15.2008, 01:38 AM

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other than they are designed to work no where near dirt....
Oh yeah, they don't have ANY seals...
   
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