full ceramic engine bearing ??
08-06-2010, 05:47 AM
#1
full ceramic engine bearing ??
I am rebuilding my os speed vb .21 and it comes stock with a steel front and hybrid ceramic rear, i am replacing the rear with the same hybrid (ceramic balls, steel races) but want to run a full ceramic front bearing. has anyone done it and if so how did it work? my only concern is that the seals on the full ceramic wont be strong enouh not to let air in. let me know any and all input
08-06-2010, 05:48 AM
#2
08-06-2010, 06:16 AM
#3
do not do it... it wont last a tank.. i tried them front and rear.. and within a tank they were done... luckily Boca gave me back product for the value... they had took them off the list for RC engines but i see that they re-list them for rc-engines again.. give a call or email and ask them...
08-06-2010, 06:20 AM
#4
I run full ceramics in my Ghetto Speedenstein. The Boca's are good bearings. I've used regular engine bearings from them in the past but I really like TKO's ceramics. They are the top choice of engine modders and rebuilders around the country.
I'm on 6 gallons with no rod replacement and ZERO issues to date with my full TKO ceramic setup.
I'm on 6 gallons with no rod replacement and ZERO issues to date with my full TKO ceramic setup.
08-06-2010, 07:24 AM
#5
Tech Rookie
full ceramic bearing for rc engines
for now we are of the position that full ceramic bearings in rc engines are very much still experimental. we have had some successes and some failures. every engine set up, operating environment and driver is different so at this point we are being cautious. if someone would like to help us with testing we would be willing to give them a free set of full ceramics to run and give us feedback. pm me and let me know.
[email protected]
[email protected]
08-06-2010, 10:48 PM
#6
What's the problem with front ceramic bearing, they can't handle the dirt or impact? I just put a set of TKO ceramic bearings in my Novarossi P5. I think
they'll be alright. Time will tell.
they'll be alright. Time will tell.
08-06-2010, 10:50 PM
#7
they are talking about full ceramics.. not the hybrids with just ceramic balls... but these have ceramic casing and everything
08-06-2010, 10:58 PM
#8
Full ceramics are for an environment like caustic or corrosive chemicals or in electric motor applications where no conductivity can go through the bearings.
They are not for our engines. Shock,thermal shock and other factors prevent it. The slightly lower drag would not be worth the cost and lack of reliability.
They are not for our engines. Shock,thermal shock and other factors prevent it. The slightly lower drag would not be worth the cost and lack of reliability.
08-06-2010, 11:08 PM
#9
08-06-2010, 11:14 PM
#10
Sorry Peter just answered my question.
08-06-2010, 11:23 PM
#11
I have had one problem with ceramics they were cheap ProTeks, lasted a LONG 15 minutes! The high pitch scream/whistle, barley idle tune right etc. I have had good luck with TKO's, and also customers and team mates. My old ninja had TKO ceramics for about 5 gallons and I think replacing them would be a good idea, seeing how I just put a new p/s/r in it.
TKO also ships VERY fast!
Andy
TKO also ships VERY fast!
Andy
08-06-2010, 11:30 PM
#13
guys the thread is about a full Ceramic bearing... not the usual that we buy from TKO and others... they are talking about ceramic everything... balls and casing
08-07-2010, 01:03 AM
#14
correct, most ceramics you see are called hybrids, IE ceramic balls in steel races. The issue with full ceramic is the lack of reliable seal. As i understand it its near impossible to implement a groove into the ceramic in which a seal can be mounted. os and some others supply ceramics from the factory but there simply hybrids.
08-07-2010, 11:34 AM
#15
Tech Fanatic
I used ceramic bearings without issue. Most issues come from the way they are installed. From beating on the center race while driving the bearings in which breaks the ceramic ball bearings. Or not seating the bearing fully in the case.