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Question about JRX2 Gearbox Diff
Posted: Fri Feb 20, 2009 9:04 am
by a01butal
When assembling a new diff what are you Losi veteran's doing with the A-3018 small thrust bearing. The problem is you can't or I can't seem to find the Belleville washers in the proper size. Do you still need them on the screw(shaft) for pressure or does the A-3018 just replace all the washers and such? Thanks in advance for any help you can give.
Re: Question about JRX2 Gearbox Diff
Posted: Fri Feb 20, 2009 9:11 am
by aconsola
a-3018 has the hardware and washers all in the package. if it doesn't then you probably have the newer version of the 3018, which has a completely different thrust bearing that will not work in that diff.
Re: Question about JRX2 Gearbox Diff
Posted: Fri Feb 20, 2009 9:42 am
by a01butal
Anybody have the A-3018 with the Belleville washers and thrust bearing w/washers that they could spare, pm me if you do. Thanks.
Re: Question about JRX2 Gearbox Diff
Posted: Fri Feb 20, 2009 11:00 pm
by Bongo Fury
Don't know about a later version of 3018, I'm pretty sure mine would be the first version. 8 balls, about 0.4" OD. Fits in the LRM, replacing the original smaller 5 ball 3011.
Perhaps 9712K16 from McMaster? (the 5th one)
http://www.mcmaster.com/#about-belleville-disc-springs/=oxgqf
Re: Question about JRX2 Gearbox Diff
Posted: Fri Feb 20, 2009 11:13 pm
by aconsola
The washers linked above look like the ones, $9 for 12 washers seems a bit expensive
here is a link to the newer version of a-3018
http://www.horizonhobby.com/Products/Default.aspx?ProdID=LOSA3018
the bearing is much smaller overall diameter, I am not even sure if it fits on the diff screw as I no longer have one to try.
the old version of the 3018 includes the cage, balls, thrust washers, 3 belleville washers, diff screw and nut.
PM pending as I have extras.
Re: Question about JRX2 Gearbox Diff
Posted: Fri Feb 20, 2009 11:15 pm
by a01butal
I looked there before, that ones about as close as any but still not perfect. I think I might have found the correct a3018 with the washers. Thanks Bongo I appreciate your input.
Re: Question about JRX2 Gearbox Diff
Posted: Fri Feb 20, 2009 11:23 pm
by a01butal
Aconsola pm answered.
Re: Question about JRX2 Gearbox Diff
Posted: Sat Feb 21, 2009 8:31 am
by mrlexan
Al, let me know if Anthony was able to help you out.
Re: Question about JRX2 Gearbox Diff
Posted: Sat Feb 21, 2009 8:44 am
by a01butal
Anthony helped me out just great.