RunRyder - CERAMIC BEARINGS

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Engines Plugs Mufflers Fuel > CERAMIC BEARINGS

TURBINE MASTER
Senior Heliman
Location: SW ENGLAND

Hi all
Does anyone know of any suppliers in the UK that can supply ceramic bearing sets, same size as in the OS 91SZ,
Thanks
Turbine Master

06-13-2008 05:21 PM

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playfair
Key Veteran
Location: Rochester, NY

Can't answer your question directly, but I can tell you that ceramic engine bearings provide ZERO increase in life. Neither does stainless steel.

My data is from putting over 2000 flights on OS50's, and trying all different types of bearings.

The sky is our canvas

06-13-2008 06:44 PM

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BarracudaHockey
rrMaster
Location: Orange Park FL

What he said.

AMA 77227
http://www.jaxrc.com

06-13-2008 07:09 PM

nivlek
rrProfessor
Location: Norfolk England

Stainless steel is softer , so may not stand up as well . How about trying a phenolic bearing ?

At the end of the day , it gets dark .

06-13-2008 07:36 PM

JuanRodriguez
Elite Veteran
Location: Rochester, New York

Quote
I can tell you that ceramic engine bearings provide ZERO increase in life.

Wouldn't that depend on the application ?? I'm by far no expert on the subject but don't the r/c turbine engines use ceramics ??

If so, there has to be a reason for it I would think......

Edit: I see you're referring to the OS 50......

06-13-2008 08:18 PM

Timbers
Senior Heliman
Location: Wisconsin

I wouldn't run them. I tried them a few years ago, and they chipped apart and destroyed the OS 70 that I was running them in. Not worth it.

...Tim

You fly RC helicopters? Can I have a ride?

06-13-2008 08:34 PM

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nivlek
rrProfessor
Location: Norfolk England

Quote
Wouldn't that depend on the application ?? I'm by far no expert on the subject but don't the r/c turbine engines use ceramics ??

I think that it depends on your rpm , at the rpm that turbines run , then ceramics are required .

At the end of the day , it gets dark .

06-13-2008 11:55 PM

dazzaster
Key Veteran
Location: right next door to hell

Turbine Master.
is there an update? have you managed to find the ceramic bearings for the gearbox?
Darren

always sit on the back of an airplane, you never see them reverse into mountains

06-19-2008 05:54 PM

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bikerflyer
Heliman
Location: san juan capistrano, ca,USA

ceramic rc engine

try these guys - good prices on Ceramic and steel bearings.
http://www.rc-bearings.com/

06-21-2008 04:56 AM

PilotDaz
Veteran
Location: Seattle, WA

Quote
try these guys - good prices on Ceramic and steel bearings.

I suggest you don't try those. I've had 2 sets of these fail and destroy 2 different engines, and OS won't warrant them because it isn't their bearing.

Also another guy I fly with has had the same happen with his ceramic.

We're currently testing a new bearing that may do the trick. We'll post here once we have enough flights on it to say if it is a better way to go.

~Team Collective Mayhem - "My anger management class really PISSES ME OFF!"

06-23-2008 04:40 PM

bikerflyer
Heliman
Location: san juan capistrano, ca,USA

Ceramin Bearing failures

PilotDaz

thanks for the feedback. any idea why they fail and what the differences are between these ceramics and the ones sold by Boca bearing?

06-23-2008 05:02 PM

BarracudaHockey
rrMaster
Location: Orange Park FL

Don't waste your money, they don't last any longer, the answer is there's probably no difference other than the price.

AMA 77227
http://www.jaxrc.com

06-23-2008 05:25 PM

bikerflyer
Heliman
Location: san juan capistrano, ca,USA

Ceramic bearing failures

so you recommend staying with Steel?

I've not had any failures with my RC- bearing ceramics, but notice that both ceramic and steel tend to rust very fast with the fuel I'm using. Won't name brand, but i susepct it has a higher than 30% nitro content, and if I'm not diligent about afterrun oil, my near the beach climate causes rust after a few mnths.

06-23-2008 05:33 PM

RotorRage
Veteran
Location: Lake Charles, La.

One reason ceramics might not hold up to piston engines is the vibration. Turbines run at high rpm but also very smooth. Or it might be like how regular steel can give a little while hardend steel just breaks. Not sure, just a quick thought.

Team Flyanydamnthing

06-24-2008 02:04 AM

dazzaster
Key Veteran
Location: right next door to hell

i think some are missing the point . the original poster said he wanted ceramic bearing the same size as the OS91SZ, he didnt say they where going to go into the engine!!

always sit on the back of an airplane, you never see them reverse into mountains

06-24-2008 06:03 AM

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MattJen
Elite Veteran
Location: UK,Gravesend, Kent

if it is a set you need,

I do have a brand new set of ceramic ( rear and Front) they are for the OS 90.. i got them from Bocca as i could not locate a UK supplier, i tried SMB, plus a couple of other places.. in the end i had to go the US way.

if you are interested Dave let me know and i will post them out to you..

Matt

I bought mymother in law a chair for xmas, but she would not plug it in.

06-24-2008 06:36 PM

PilotCK
Veteran
Location: Maple Valley, WA

.....

~Team Collective Mayhem

06-26-2008 03:35 PM

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Engines Plugs Mufflers Fuel > CERAMIC BEARINGS

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