Thrust bearing install

[Geeves]

Update on 07-18-08
Link to Geeves step by step thrust bearing install, take it or leave it (http://www.cfs-web.com/Portals/0/Images/bearing.pdf)


I tried to intall a thrust bearing on my stock sv brushless. Then motor has too much shaft what can i do? If i cut it do I need to put another keyway in the motor shaft. How perfect of a cut do i need can i just use a dremmel?

Thanks

http://www.cfs-web.com/Portals/0/ENGINEER/3111.jpg

[JimClark]

use extra washers to shim it out

[G Doggett]

You can shorten the shaft and extend the flat with a Dremmel quite easily, just make sure you don't get any filings in the motor, but you could just add a second thrust bearing instead.
Graham.

[SweetAccord]

Both ways would work, but it would be ideal to shorten the shaft and re-key.

Now, since you have the ability to shorten the shaft, if you measure carefully you can set the shaft lenght and keyway in such a way that the coupler will have the exact .005" gap and not be able to slide down. This may be hard to do but you can do it, I have. Just take time on the filing of the keyway. Remember the thrust bearing needs to have about a .005" (paper space) play between the motor and the coupler.

Yes a dremel would work.

[Eyekandyboats]

cut the shaft

[arisarts]

I tried to intall a thrust bearing on my stock sv brushless. Then motor has too much shaft what can i do? If i cut it do I need to put another keyway in the motor shaft. How perfect of a cut do i need can i just use a dremmel?

Thanks

http://www.cfs-web.com/Portals/0/ENGINEER/3111.jpg

Check what I did.

[Geeves]

Sweet tell me how it works im wondering if it bind.

[SweetAccord]

Make sure that piece that is between the thrust bearing and the coupler stays put with the coupler or it will defeat the purpose/function of the thrust bearing.

Let us know how it works!

[Daveo]

well I will never know if I don't ask. What purpose does the bearing serve on the motor shaft? The shaft already has a bearing where it exits the motor can. Isn't that enough?

[Geeves]

Basically its reduces the load on the motor, causing less heat and ?longer life?
Some people argue this because electric motors have come a long way from the 1st rc boats. But for $7.00 and a few nights of screwing around with the sv what harm could come of it.

Link to great info on thrust bearings
http://www.rcboataholic.com/hardware/thrust%20bearing.htm

[SweetAccord]

Search the OSE thread, put in "Thrust Bearing"

http://forums.offshoreelectrics.com/search.php

[Geeves]

Link to Geeves step by step thrust bearing install, take it or leave it (http://www.cfs-web.com/Portals/0/Images/bearing.pdf)

[SweetAccord]

Link to Geeves step by step thrust bearing install, take it or leave it (http://www.cfs-web.com/Portals/0/Images/bearing.pdf)


There you go!