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-   -   3:1 Planetary Reduction (https://www.rctruckandconstruction.com/showthread.php?t=11772)

Claus 07-20-2016 10:41 AM

3:1 Planetary Reduction
 
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/HuwAAO...Sfv/s-l500.jpg
http://www.rcmart.com/images/xs-XS-59616-3.jpg

http://www.ebay.com/itm/Xtra-Speed-3...wAAOSw7FRWVSfv

bigford 07-20-2016 11:29 AM

Re: 3:1 Planetary Reduction
 
What's the difference between a planteary and
D spur??

Claus 07-20-2016 11:54 AM

Re: 3:1 Planetary Reduction
 
Quote:

Originally Posted by bigford (Post 146502)
What's the difference between a planteary and
D spur??

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

Planetary is like this;

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

bigford 07-20-2016 12:20 PM

Re: 3:1 Planetary Reduction
 
10-4

RCP57 07-20-2016 12:52 PM

Re: 3:1 Planetary Reduction
 
Don't stare at the planetary animation too long Mark. You'll end up like RW.:rolleyes:

TRUCKMAKER 07-20-2016 02:07 PM

Re: 3:1 Planetary Reduction
 
Quote:

Originally Posted by RCP57 (Post 146507)
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

Re: 3:1 Planetary Reduction
 
Must obey the sun gear...

Doggy 07-20-2016 02:15 PM

Re: 3:1 Planetary Reduction
 
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

Re: 3:1 Planetary Reduction
 
Quote:

Originally Posted by TRUCKMAKER (Post 146513)
: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

Re: 3:1 Planetary Reduction
 
Quote:

Originally Posted by RCP57 (Post 146518)
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

Re: 3:1 Planetary Reduction
 
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

Re: 3:1 Planetary Reduction
 
Quote:

Originally Posted by RCP57 (Post 146523)
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

Re: 3:1 Planetary Reduction
 
Quote:

Originally Posted by TRUCKMAKER (Post 146524)
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

Re: 3:1 Planetary Reduction
 
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


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