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Claus
07-20-2016, 10:41 AM
I bought one of these off eBay, haven't done any testing with it or anything but seems like a nice reduction if anybody is looking for one. It is a planetary vs the spur design offered by RC4WD. $20.00 plus shipping.

http://i.ebayimg.com/images/g/HuwAAOSw7FRWVSfv/s-l500.jpg
http://www.rcmart.com/images/xs-XS-59616-3.jpg

http://www.ebay.com/itm/Xtra-Speed-3-1-Planetary-Gear-Reduction-Unit-540-Motor-Ver-2-EP-RC-Car-XS-59627-/131660697199?hash=item1ea796ce6f:g:HuwAAOSw7FRWVSf v

bigford
07-20-2016, 11:29 AM
What's the difference between a planteary and
D spur??

Claus
07-20-2016, 11:54 AM
What's the difference between a planteary and
D spur??

Spur gear is like this;
http://tracgear.com/product/rc4wd/custom/gru/ultra/1.jpg

Planetary is like this;

http://www.orientalmotor.com/images/in_motion/pn_gear.gif

bigford
07-20-2016, 12:20 PM
10-4

RCP57
07-20-2016, 12:52 PM
Don't stare at the planetary animation too long Mark. You'll end up like RW.:rolleyes:

TRUCKMAKER
07-20-2016, 02:07 PM
Don't stare at the planetary animation too long Mark. You'll end up like RW.:rolleyes:

:lol::lol::lol::lol:


Reg didn't that KW you and the wife were playing with have planetaries in the rear?

bigford
07-20-2016, 02:14 PM
Must obey the sun gear...

Doggy
07-20-2016, 02:15 PM
Cool unit, maybe I will try to order few to try. 3:1 is not much, and I dont like the fact it goes directly on the motor, as it puts more torque on gears inside tamiya 3speed.
But i would like to have few sets of this gears to combine and make a bigger reduction or a nice planetary 2 speed gearbox!

RCP57
07-20-2016, 02:38 PM
:lol::lol::lol::lol:


Reg didn't that KW you and the wife were playing with have planetaries in the rear?

Leave my wife's rear out of this.:cop::lol::lol::lol:

TRUCKMAKER
07-20-2016, 03:48 PM
Leave my wife's rear out of this.:cop::lol::lol::lol:

Well ok but you didn't answer my question.:D:p

RCP57
07-20-2016, 04:30 PM
That real Hayes HDX? https://www.youtube.com/watch?v=AWoqq61WXGg This? If so, yes. 91000 Clark rears.

TRUCKMAKER
07-20-2016, 04:41 PM
That real Hayes HDX? https://www.youtube.com/watch?v=AWoqq61WXGg This? If so, yes. 91000 Clark rears.

Yes, thanks that's the one. All I could think of was your big KW and was at work, didn't have time to search.

RCP57
07-20-2016, 07:09 PM
Yes, thanks that's the one. All I could think of was your big KW and was at work, didn't have time to search.

The KW would run the same diffs as the HDX in real life. Clark BD91000 or BD121000. Some of the trucks had Rockwell SPR570 axles but they were not common.

Sockpuppet
03-06-2017, 01:27 AM
got 1 of these a few weeks ago, very simple to add on and produced nice amount of torque. Im getting alot better acceleration now and driving off road dosen't even slow it down

http://i64.tinypic.com/ibmh7c.jpg