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04-09-2011, 12:57 PM | #1 |
Quarry Creeper Join Date: Feb 2011 Location: Princeton Illinois
Posts: 477
| knuckle and c hub install problem
i just got the axial aluminum c hubs and knuckles for my scx10 honcho. the problem seem to be that the stock hardware wont work with the knuckles or hubs. the hubs came with some set screws and thats all. do i need new hardware or am i missing something??
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04-09-2011, 03:26 PM | #2 |
RCC Addict Join Date: Feb 2010 Location: a house
Posts: 1,986
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i used the same hardware on mine with no problems, give it another try |
04-09-2011, 03:53 PM | #3 |
Rock Crawler Join Date: Apr 2010 Location: Central FL
Posts: 509
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I'd suggest using button head screws for the hubs rather than the included set screws. M3x6 or M3x8 should work well. |
04-09-2011, 04:39 PM | #4 |
I wanna be Dave Join Date: Oct 2006 Location: Centered
Posts: 2,082
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Agreed...the set screws don't hold as strongly as an M3 button or cap and you'll notice some play almost immediately. If you're bent on using the set screws though, pick up some extras (AXA180) and install them in the other mounting holes as well. |
04-09-2011, 06:12 PM | #5 |
Quarry Creeper Join Date: Feb 2011 Location: Princeton Illinois
Posts: 477
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The stock hardware is corase thread and the threads in the hubs is fine thread so im just confused on how stock hardware works.
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04-09-2011, 11:04 PM | #6 |
Rock Crawler Join Date: May 2009 Location: Queensland, Australia
Posts: 610
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The stock hardware is course thread self tapper designed for plastic only. You need to get some M3 machine thread screws/bolts to put the knuckle on the C-hub...stock stuff should work to bolt the C-hub to the axle. |
04-10-2011, 07:21 PM | #7 |
Quarry Creeper Join Date: Feb 2011 Location: Princeton Illinois
Posts: 477
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what size bolts are they to put knucke on to hub?
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04-10-2011, 09:58 PM | #8 |
Quarry Creeper Join Date: Sep 2007 Location: strawtown
Posts: 319
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m3x10mm |
04-11-2011, 01:44 AM | #9 |
Quarry Creeper Join Date: Feb 2011 Location: Princeton Illinois
Posts: 477
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cool going to buy some today. should i use loctite?
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04-11-2011, 05:30 AM | #10 |
Rock Crawler Join Date: May 2009 Location: Queensland, Australia
Posts: 610
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Very small drop on the tip of the screw. If you use too much it will fuse your steering. Also make sure you only use loctite on metal to metal..It melts plastic. |
09-23-2014, 03:49 PM | #11 |
Quarry Creeper Join Date: May 2014 Location: Burlington, ON Canada
Posts: 327
| Re: knuckle and c hub install problem
Found this thread because I came across the same problem. I found a solution, so here it is for those who come across the same problem in the future. If you buy AX30495 aluminum C Hubs -- ...and AX30496 Aluminum Knuckles -- ...when the instructions call for using AXA435 coarse thread screws for mounting the knuckles to the hubs, this is clearly the wrong type of hardware for aluminum. I don't even know if it would work at all. I wouldn't try it. What you need are M3x10mm machined screws. If you don't have some lying around in your parts bin, you can go to your LHS or fastener centre, or, if you want to keep building NOW, open "BAG E" and take out AXA0109 (there's 4) and use them. The head is actually perfect for this application too. AXA0109 -- While you're in that bag, put the 4 AXA435 coarse thread screws in there for later. What you've borrowed are the screws for mounting your servo to the servo mounts.....which are plastic. It's a perfect swap. Happy building. *Edit -- I realized bag references and quantities might not be the same across all models. FTR, I'm building a SCX10 Wrangler G6 Recon. |
09-23-2014, 07:31 PM | #12 |
I wanna be Dave Join Date: Jul 2009 Location: Rancho Relaxo. California. USA. Earth.
Posts: 3,292
| Re: knuckle and c hub install problem
When getting into the hobby, do buy a random m3 screw kit. Don't count on any screws staying in when on the trail.. better to have plenty of spares |
09-23-2014, 07:42 PM | #13 |
I wanna be Dave Join Date: Sep 2006 Location: Anchorage, Alaska
Posts: 3,099
| Re: knuckle and c hub install problem
odd ^ my Axial 8* alloy Chubs/knuckles came with machined thread set screws. 3mm Dia. I believe the purpose of using set screws as opposed to button head screws is so that they can be threaded flush to the axle housing's surface and not cause interference in limiting steering throw as a button head or cap screw could. Don't use locktite on metal threading into plastic threads. Many plastics can be harmed when using Locktite on them. instead use a very slight amount of CA glue. I recommend utilizing "beef tubes" in the axle housing(s) so that the Chub's retaining screws will thread into the steel (metal) beef tubes for better precision/stronger threading. And because this method of mounting... would become metal threading into metal. I would then recommend using blue locktite on the set screws. PS: even if you only thread into plastic... the 3mm machined set screws will hold better then the crappy self tapper thread type screws. It just takes a little more effort to get the machined thread started. But it's worth the effort as it will offer a more secure fit and not back out as easily. Last edited by TacoCrawler; 09-23-2014 at 07:47 PM. |
09-24-2014, 09:26 AM | #14 |
Quarry Creeper Join Date: May 2014 Location: Burlington, ON Canada
Posts: 327
| Re: knuckle and c hub install problem
As far as the machined set screwed, yes, they came with the chubs (as seen in the picture I posted above). I put a dab of thread lock on the last few threads before setting into the aluminum. The knuckles come with no hardware. The discussion around the "wrong" hardware refers to the point in the instructions when you have to screw the knuckles to the chubs. If you've chosen to upgrade to aluminum components (AX30495 & AX30496), the coarse thread screws are wrong and, as I mentioned, I doubt they would even work. You might as well pound some nails in with a hammer if you'd try using them. The AXA0109 screws are M3x10mm machine screws with a nice flat head and work perfectly. |
09-24-2014, 10:55 AM | #15 |
RCC Addict Join Date: Aug 2014 Location: Virginia, Near DC, USA
Posts: 1,607
| Re: knuckle and c hub install problem For the record, while Loc-Tite can't be used on plastic, superglue can. I've had good luck fixing screws into plastic using a drop of superglue. It cracks apart when you apply torque using a screwdriver, but it keeps the screw from backing-out on its own.
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09-24-2014, 02:05 PM | #16 |
Rock Stacker Join Date: May 2010 Location: Bluefield,WV
Posts: 91
| Re: knuckle and c hub install problem
When I built my scx-10 Jk over a year ago I was completely new to Axial rc's. I had done a lot of reading and research on it and still did not know that the course thread screws in the kit were junk. I built my kit with this hardware and now wish I hadn't. In hindsight I would have got a stainless steel screw kit to go along with it. I recently picked up a kit from Team KNK and it seems to be really good quality. I have not put any hardware on yet as I'm waiting for winter to do a complete tear down and cleaning to install. But for 18.50 shipped it is a small price for some quality hardware. Sorry for the long post. Sent from my iPhone using Tapatalk |
09-24-2014, 03:02 PM | #17 |
I wanna be Dave Join Date: Sep 2006 Location: Anchorage, Alaska
Posts: 3,099
| Re: knuckle and c hub install problem
...guess I misread the previous but If I remember there was more to it then just using 3mm button head screws to attach the S knuckles to the Chubs. I believe the S knuckles openings are a larger ID then 3mm and require a flange pipe/sleeve inserted into the S knuckle(s) Both upper and lower positions. I inserted mine so that the flange inserts/bushings... flange lip pressed into the inside surfaces of the S knuckle(s) doing so eliminates vertical play between the C-hub/S-knuckle. and does not raise the button head screw's (kingpin) profile. steel flange inserts Alternatively these could be utilized... tho' I thought I remember seeing this type of shoulder screw in my RTR's spare parts stuff. I personally prefer the flange inserts... because they will reduce vertical play and act as a bushing, protecting the kingpin holes of the S knuckle as well... The flange inserts will offer a longer consumable life for the S knuckles. ...just replace the flange/bushing when they've worn Last edited by TacoCrawler; 09-24-2014 at 04:29 PM. |
09-24-2014, 03:20 PM | #18 | |
Quarry Creeper Join Date: May 2014 Location: Burlington, ON Canada
Posts: 327
| Re: knuckle and c hub install problem Quote:
They also act as a bushing of sorts. | |
09-24-2014, 04:26 PM | #19 |
I wanna be Dave Join Date: Sep 2006 Location: Anchorage, Alaska
Posts: 3,099
| Re: knuckle and c hub install problem true 'dat If the flange/bushings start to wear... replace them, before S knuckle damage/wear can occur. ^ smartest deal for increasing S knuckle consumable life/use. glad you mentioned that I had to doctor my previous but you's gets 'da credit fo' dat |
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