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CWasko36 · 06-23-2010, 04:41 PM

Kasama products are designed and manufactured in Thailand

http://www.kasama.com/index.php?option=aboutus&sub=2

JamesGreen · 06-24-2010, 12:13 PM

I am picking up one of these bearings next week.

I am no longer getting the Avant E, so wil be selling it on.

Price £45.00 + postage, let me know if anyone is interested.

James

tony stevens · 06-25-2010, 04:36 PM

Just received mine so its going straight in and it'll slip no more

Tom Burgess · 06-25-2010, 05:46 PM

Flew mine tonight, smooth as silk

Laughingstill · 07-01-2010, 09:25 PM

Quote:

Originally Posted by Justin Stuart

Thank you. I'll await your PM.

Incidentally, I got a call back from Esprit Models. They said they expect a shipment of Kasama parts next week, and in the shipment will be more of the Smirok E90 one-way bearings. He said Kasama parts were coming out of Thailand. I thought Kasama was German?

No sir, Thailand is the place

MrMel · 07-06-2010, 08:27 AM

Well, I tried 2 Tsubaki bearings, yes, its better, but sorry, its not the perfect solution, they slip too, took 1000 watts more of power than stock (in any form, have renovated the stock in about 7 different ways)

I going to fly one of them and see if it gets better or not.
Its the bearing itself that slips, not the bearing in the outer housing.

I'm at my wits end here soon, I'm actually considering welding it shut and take the hit when I need to do an auto to fly this damn thing.

tony stevens · 07-06-2010, 08:54 AM

Sorry to hear that.
I take it this was on an Aurora e?
Alot more HP than the nitro

MrMel · 07-06-2010, 08:59 AM

Yup, e90

I wonder if its the limit for those bearings... Kasama's new e machine must suffer from same thing if so.

I'm still below 6000watts, its much, but considering other 90 e helis push 2.5kw more....
I going to get some more flights to see if it magically gets better.

Laughingstill · 07-06-2010, 09:38 AM

Quote:

Originally Posted by MrMel

Well, I tried 2 Tsubaki bearings, yes, its better, but sorry, its not the perfect solution, they slip too, took 1000 watts more of power than stock (in any form, have renovated the stock in about 7 different ways)

I going to fly one of them and see if it gets better or not.
Its the bearing itself that slips, not the bearing in the outer housing.

I'm at my wits end here soon, I'm actually considering welding it shut and take the hit when I need to do an auto to fly this damn thing.

Not good to hear

tony stevens · 07-06-2010, 10:01 AM

Makes you wonder how long the stock bearing in the e90's will last.Half a flight?

Has anyone had one slip on their e90 yet?

Justin Stuart · 07-06-2010, 10:05 AM

Are the Trex 700E's using a larger diameter hub with a larger one-way? I have not heard reports of the 700E slipping.

Justin Stuart · 07-06-2010, 10:40 AM

Hey MrMel, I have an idea. The MinAir Stratus uses a 10mm main shaft as does the e-Aurora. Rrather than welding the Tsubaki bearing shut, how about trying to figure some way to get the MinAir Sprag/hub into the Aurora main gear?

MrMel · 07-06-2010, 11:03 AM

Im actually looking into that already, have my stratus parts here on my summer home...
Never had slipping issue with my e-stratus

Tom Burgess · 07-06-2010, 11:25 AM

Don't give up yet. My Tsubaki flew great for the first 10 or so flights, then I would get the "chirp" (not a slip though). It has since settled down and not chirped again. Only time will tell

Justin Stuart · 07-06-2010, 11:59 AM

You're getting slippage only during high collective maneuvers like tic-tocs, or does it happen during all phases of flying?

Tom Burgess · 07-06-2010, 03:46 PM

I have found the best way to test if a sprag is slipping is to fly an elevator slapper. Half piro transitions also can show up any slippage. I have never had it slip during tic toc's.

Justin Stuart · 07-06-2010, 04:20 PM

What's an elevator slapper?

FBLessOne · 07-06-2010, 04:31 PM

me and my buddy installed the tsubaki ones long time ago and never had them slip
he has an electric and i have a a nitro

i've also read several posts from people that also never had any more problems after they installed the tsubaki

the kazama 90 uses the tsubaki and they don't have a problem with it either

MrMel · 07-06-2010, 11:54 PM

Quote:

Originally Posted by FBLessOne

me and my buddy installed the tsubaki ones long time ago and never had them slip
he has an electric and i have a a nitro

i've also read several posts from people that also never had any more problems after they installed the tsubaki

the kazama 90 uses the tsubaki and they don't have a problem with it either

Yet i installed two yesterday and both slipped.
Its a question of flying style and power used.
Both tsubaki slipped at same powerlevel, so i guess i found the max.

FBLessOne · 07-07-2010, 01:39 AM

i guess if everyone hasn't had a problem with the tsubakis and so far the only ever report of them slipping here or in the kasama ones is this case i wouldn't worry too much about it

07-06-2010, 08:27 AM	#66 (permalink)
MrMel Registered Users Join Date: Apr 2005	Well, I tried 2 Tsubaki bearings, yes, its better, but sorry, its not the perfect solution, they slip too, took 1000 watts more of power than stock (in any form, have renovated the stock in about 7 different ways) I going to fly one of them and see if it gets better or not. Its the bearing itself that slips, not the bearing in the outer housing. I'm at my wits end here soon, I'm actually considering welding it shut and take the hit when I need to do an auto to fly this damn thing. __________________ Gone fishing.. or hunting or something.. http://heli.dacsa.net

07-06-2010, 08:59 AM	#68 (permalink)
MrMel Registered Users Join Date: Apr 2005	Yup, e90 I wonder if its the limit for those bearings... Kasama's new e machine must suffer from same thing if so. I'm still below 6000watts, its much, but considering other 90 e helis push 2.5kw more.... I going to get some more flights to see if it magically gets better. __________________ Gone fishing.. or hunting or something.. http://heli.dacsa.net

07-06-2010, 10:05 AM	#71 (permalink)
Justin Stuart Registered Users Join Date: Mar 2008	Are the Trex 700E's using a larger diameter hub with a larger one-way? I have not heard reports of the 700E slipping. __________________ Avant RC Scorpion Power Systems ThunderPower RC Kontronik Drives Last edited by Justin Stuart; 07-06-2010 at 04:34 PM..

07-06-2010, 10:40 AM	#72 (permalink)
Justin Stuart Registered Users Join Date: Mar 2008	Hey MrMel, I have an idea. The MinAir Stratus uses a 10mm main shaft as does the e-Aurora. Rrather than welding the Tsubaki bearing shut, how about trying to figure some way to get the MinAir Sprag/hub into the Aurora main gear? __________________ Avant RC Scorpion Power Systems ThunderPower RC Kontronik Drives Last edited by Justin Stuart; 07-06-2010 at 04:35 PM..

07-06-2010, 11:03 AM	#73 (permalink)
MrMel Registered Users Join Date: Apr 2005	Im actually looking into that already, have my stratus parts here on my summer home... Never had slipping issue with my e-stratus __________________ Gone fishing.. or hunting or something.. http://heli.dacsa.net

06-23-2010, 04:41 PM	#61 (permalink)
CWasko36 Registered Users Join Date: Jun 2006	Kasama products are designed and manufactured in Thailand http://www.kasama.com/index.php?option=aboutus&sub=2

06-24-2010, 12:13 PM	#62 (permalink)
JamesGreen Registered Users Join Date: Mar 2008	I am picking up one of these bearings next week. I am no longer getting the Avant E, so wil be selling it on. Price £45.00 + postage, let me know if anyone is interested. James

06-25-2010, 04:36 PM	#63 (permalink)
tony stevens Registered Users Thread Starter Join Date: Jun 2008	Just received mine so its going straight in and it'll slip no more

06-25-2010, 05:46 PM	#64 (permalink)
Tom Burgess Registered Users My HF Map location Join Date: Oct 2007	Flew mine tonight, smooth as silk

07-06-2010, 08:54 AM	#67 (permalink)
tony stevens Registered Users Thread Starter Join Date: Jun 2008	Sorry to hear that. I take it this was on an Aurora e? Alot more HP than the nitro

07-06-2010, 10:01 AM	#70 (permalink)
tony stevens Registered Users Thread Starter Join Date: Jun 2008	Makes you wonder how long the stock bearing in the e90's will last.Half a flight? Has anyone had one slip on their e90 yet?

07-06-2010, 11:25 AM	#74 (permalink)
Tom Burgess Registered Users My HF Map location Join Date: Oct 2007	Don't give up yet. My Tsubaki flew great for the first 10 or so flights, then I would get the "chirp" (not a slip though). It has since settled down and not chirped again. Only time will tell

07-06-2010, 11:59 AM	#75 (permalink)
Justin Stuart Registered Users Join Date: Mar 2008	You're getting slippage only during high collective maneuvers like tic-tocs, or does it happen during all phases of flying? __________________ Avant RC Scorpion Power Systems ThunderPower RC Kontronik Drives

07-06-2010, 03:46 PM	#76 (permalink)
Tom Burgess Registered Users My HF Map location Join Date: Oct 2007	I have found the best way to test if a sprag is slipping is to fly an elevator slapper. Half piro transitions also can show up any slippage. I have never had it slip during tic toc's.

07-06-2010, 04:20 PM	#77 (permalink)
Justin Stuart Registered Users Join Date: Mar 2008	What's an elevator slapper? __________________ Avant RC Scorpion Power Systems ThunderPower RC Kontronik Drives

07-06-2010, 04:31 PM	#78 (permalink)
FBLessOne Registered Users Join Date: Aug 2007	me and my buddy installed the tsubaki ones long time ago and never had them slip he has an electric and i have a a nitro i've also read several posts from people that also never had any more problems after they installed the tsubaki the kazama 90 uses the tsubaki and they don't have a problem with it either

07-07-2010, 01:39 AM	#80 (permalink)
FBLessOne Registered Users Join Date: Aug 2007	i guess if everyone hasn't had a problem with the tsubakis and so far the only ever report of them slipping here or in the kasama ones is this case i wouldn't worry too much about it

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