16.5 " JAE rigger

[martin]

Many thanks for answers, I assume the 1/4" x 1/8" stainless bearings are ball races as thats what i use also. Is the 1630 prop an Octura or something else. And what 4300kv motor do you have. I was looking towards a Leopard 2845 4110kv or 4430kv on 3s for extreme runs. Thanks Martin.

[Jim Bob]

Yes, They are ball bearings. The prop is made by Octura. The Motor is a 2845...not sure of the brand. Both of those motors on 3s should be extreme!

[martin]

What diameter flex are you using, Also do you need remove the strut to get the flex out or are you using a .098" flex that will pull out through the ball bearings. Thanks. Martin.

[electric]

40 amp mystery ESC http://www.hobbyking.com/hobbyking/s...idProduct=9482
3S 2650 mah battery
4300 kV in runner motor
1630 prop de-tongued and back cut
1/4" x 1/8" stainless steel bearings in the strut
I do not suggest this motor/ battery combo for everyday driving. It is extreme. If I were building a fleet for my family I would go with a 3800 kv motor. i Hope ive got all your questiions answered.

Thanks for the information. Yes, need to watch the speed for family use. My son (6 years old) is already racing SV's so is very skilled and a bit scary fast for his age. He beats everyone racing Slash's.. Those quick reflexes I guess. Helps that he started with cars at age 2 and is crazy about them. Chuckle. Might try something resembling your set up and just start with a 2s battery to keep the speed down.

[electric]

Yes, They are ball bearings. The prop is made by Octura. The Motor is a 2845...not sure of the brand. Both of those motors on 3s should be extreme!

Jim, where are you getting these "ball bearing" setups? Have never worked with that kind of drive system before.

[martin]

Jim, where are you getting these "ball bearing" setups? Have never worked with that kind of drive system before.

This is where i get them from in the UK www.rcbearings.co.uk im sure theirs places like this in the US. Their mainly used on rc cars & helicopters in both imperial & metric, Their also very cheap ideal for putting in water. They seem to last quite well but at the price they are you can change them & not worry about costs. Martin.

[Jim Bob]

I get my Ball Bearings here.

http://www.bocabearings.com/

Yes it is .098 flex. The bearings stay in the strut.

[electric]

I get my Ball Bearings here.

http://www.bocabearings.com/

Yes it is .098 flex. The bearings stay in the strut.

Ok,last questions, I hope. I get that you slide them into the strut and then the shaft goes through the bearing, but:
1. How many bearings are needed in the strut itself?
2. What keeps them from working their way out the back or front. I guess the drive dog does and there is no where to go the other way. Just making sure I "get it" before I do it. Any pictures of this kind of set up?
3. Sealed bearings(rubber seal) or the other kind?

[Jim Bob]

2 bearings in the strut. The front bearing is a standard bearing (http://www.bocabearings.com/bearing-...0125x025x09375) and is held in place by the front of the strut. Either the nose cone of the strut or the stuffing tube that is inserted in the strut. Then there is a piece of brass tubing used as a spacer to keep the bearing from walking to the rear of the strut. then a flanged and single shielded bearing( http://www.bocabearings.com/bearing-...50x02500x01094). I machined my strut so the bearings fit nicely, but if they are a little loose the drive dog and shaft will keep the bearings in the strut. I just use the shielded bearings.

[BILL OXIDEAN]

I get my Ball Bearings here.

http://www.bocabearings.com/

Yes it is .098 flex. The bearings stay in the strut.

Boca bearings thats right!

[martin]

2 bearings in the strut. The front bearing is a standard bearing (http://www.bocabearings.com/bearing-...0125x025x09375) and is held in place by the front of the strut. Either the nose cone of the strut or the stuffing tube that is inserted in the strut. Then there is a piece of brass tubing used as a spacer to keep the bearing from walking to the rear of the strut. then a flanged and single shielded bearing( http://www.bocabearings.com/bearing-...50x02500x01094). I machined my strut so the bearings fit nicely, but if they are a little loose the drive dog and shaft will keep the bearings in the strut. I just use the shielded bearings.

That exactally the way i make mine with ball bearings, Ive had to go up in size on my new struts to 4mm id x 7mm od ball bearings so i can use .130" flex & 4mm stub shaft so it still all pulls out through the ball bearings. I had to do this on my 15" micro mono because i started breaking .098" Octura flexes as the boats got faster & the torque from my outrunner motor was destroying them. Martin.

[electric]

Thanks a lot! That fully explains how to do it.