Go Back   RCCrawler Forums > Scale Rigs Brand Specific Tech > Axial Brand Scale Rock Crawlers > Axial Wraith
Loading

Notices

Thread: why do I keep destroying axial upgrade hardened hd bevel gear sets?

Reply
 
LinkBack Thread Tools Display Modes
Old 12-27-2013, 05:03 PM   #1
Newbie
 
Join Date: Sep 2013
Location: kelso
Posts: 35
Default why do I keep destroying axial upgrade hardened hd bevel gear sets?

Tekin 3000kv pro4 on 2s
drag brake set to 40%
Can't stop destroying these gears?
gutsploder is offline   Reply With Quote
Sponsored Links
Old 12-27-2013, 06:08 PM   #2
I wanna be Dave
 
Join Date: Feb 2013
Location: NW Indiana
Posts: 3,196
Default

Hows the gear mesh look...u running bearings or bushings on the drive pinion?
allanon1965 is offline   Reply With Quote
Old 12-27-2013, 07:11 PM   #3
I wanna be Dave
 
Join Date: Jan 2012
Location: williamsport
Posts: 8,649
Default

Quote:
Originally Posted by gutsploder View Post
Tekin 3000kv pro4 on 2s
drag brake set to 40%
Can't stop destroying these gears?
Front or rear axle?
winnerone23 is offline   Reply With Quote
Old 12-27-2013, 07:14 PM   #4
I wanna be Dave
 
Join Date: Dec 2009
Location: .
Posts: 7,967
Default Re: why do I keep destroying axial upgrade hardened hd bevel gear sets?

Running them in the proper direction, the bevel gears interlock when used in the proper direction, not so much if ran backwards.
ROWDY RACING is offline   Reply With Quote
Old 12-27-2013, 08:57 PM   #5
Rock Stacker
 
Join Date: Oct 2013
Location: in my house
Posts: 95
Default Re: why do I keep destroying axial upgrade hardened hd bevel gear sets?

post some pics up, we can figure it out
vinnyphx is offline   Reply With Quote
Old 12-27-2013, 09:05 PM   #6
Newbie
 
Join Date: Sep 2013
Location: kelso
Posts: 35
Default Re: why do I keep destroying axial upgrade hardened hd bevel gear sets?

Front Overdrive. Front only is problem. Gear mesh correct. Bearings are good. I just installed stock ratio brand new. My wheels are weighted, alot, and i believe it started with too much traction and 100% drag on mmp. I now have mmp set at 40% drag and brand new set of gears. Tried to shim it with a thin washer to tighten up mesh but it was too thick so i took it back off. Mesh is good. I think im just an idiot running 100% drag on carpet and concrete.
gutsploder is offline   Reply With Quote
Old 12-27-2013, 09:11 PM   #7
I wanna be Dave
 
Join Date: Feb 2013
Location: NW Indiana
Posts: 3,196
Default

Is this run alot on hard surfaces? Does it chatter when it is run on concrete? If gears are different in rear this could be part of the reason....just a thought....
allanon1965 is offline   Reply With Quote
Old 12-27-2013, 09:27 PM   #8
I wanna be Dave
 
Join Date: Jan 2012
Location: williamsport
Posts: 8,649
Default

Quote:
Originally Posted by gutsploder View Post
Front Overdrive. Front only is problem. Gear mesh correct. Bearings are good. I just installed stock ratio brand new. My wheels are weighted, alot, and i believe it started with too much traction and 100% drag on mmp. I now have mmp set at 40% drag and brand new set of gears. Tried to shim it with a thin washer to tighten up mesh but it was too thick so i took it back off. Mesh is good. I think im just an idiot running 100% drag on carpet and concrete.
The front od is not so good with big power and drag brake.. I ran 60% drag and ruined 2 sets.
I have lightened Slw's and knuckle weights on mine. Its just barely 7lbs rtr with a 3300mah 3s.
I just ruined some stock gears(cause its what I had). Now I'm replacing the front with some stock ratio HD gears as well. Ud in the rear, never had a issue.

I believe some of my problem comes from the relentless abuse, nose dives at full throttle, and bashing thru the woods and rocks.

Were any of the ring gear screws loose from the diff when you pulled the diff out? It can be am issue as well
winnerone23 is offline   Reply With Quote
Old 12-27-2013, 10:02 PM   #9
Newbie
 
Join Date: Sep 2013
Location: kelso
Posts: 35
Default Re: why do I keep destroying axial upgrade hardened hd bevel gear sets?

Quote:
Originally Posted by winnerone23 View Post
The front od is not so good with big power and drag brake.. I ran 60% drag and ruined 2 sets.
I have lightened Slw's and knuckle weights on mine. Its just barely 7lbs rtr with a 3300mah 3s.
I just ruined some stock gears(cause its what I had). Now I'm replacing the front with some stock ratio HD gears as well. Ud in the rear, never had a issue.

I believe some of my problem comes from the relentless abuse, nose dives at full throttle, and bashing thru the woods and rocks.

Were any of the ring gear screws loose from the diff when you pulled the diff out? It can be am issue as well
Everything tight. I think its just me bashing and driving like a moron with too much drag brake.
gutsploder is offline   Reply With Quote
Old 12-28-2013, 01:31 AM   #10
I wanna be Dave
 
Join Date: Dec 2012
Location: idaho
Posts: 2,658
Default Re: why do I keep destroying axial upgrade hardened hd bevel gear sets?

How often are you going through gears? With high power I'm finding 5 hours of hard runtime is about all I get running 2650 watts ive recently dropped to a 800watt motor and my front over drives are looking good after a few hours run time.

I run 100% drag brake for crawling and zero for bashing
evan03 is offline   Reply With Quote
Old 03-05-2014, 11:57 AM   #11
Pebble Pounder
 
Join Date: Jul 2013
Location: BFE
Posts: 177
Default Re: why do I keep destroying axial upgrade hardened hd bevel gear sets?

Pinion bearings while they may spin fine will begin to wear causing radial thrust. This will allow the pinion to thrust under power causing the pinion to push away from the ring gear and wipe out the teeth. Improper shimming or lack of will allow for axial thrust on the pinion effectively pushing it towards the housing allowing only the end to mesh as well as increase the slop in the mesh damaging the gears.. worn bearings or bushings and or improper shimmimg on the ring gear carriers will result in much of the same.
tech712 is offline   Reply With Quote
Old 03-05-2014, 12:01 PM   #12
Pebble Pounder
 
Join Date: Jul 2013
Location: BFE
Posts: 177
Default Re: why do I keep destroying axial upgrade hardened hd bevel gear sets?

Quote:
Originally Posted by ROWDY RACING View Post
Running them in the proper direction, the bevel gears interlock when used in the proper direction, not so much if ran backwards.
Bevel gears dont care which direction they are run in. The gears are straight cut.
Direction of rotation is more important on helical cut gears
tech712 is offline   Reply With Quote
Old 03-05-2014, 12:49 PM   #13
Pebble Pounder
 
Join Date: Nov 2010
Location: Simi Valley
Posts: 118
Default Re: why do I keep destroying axial upgrade hardened hd bevel gear sets?

Your problem is the massive amount of weight in the wheels. Take it all out and use knuckle weights. That will definitely fix your problem.
monturacer3 is offline   Reply With Quote
Old 03-05-2014, 01:00 PM   #14
Quarry Creeper
 
Join Date: Aug 2011
Location: Spalding, Lincs, UK
Posts: 235
Default Re: why do I keep destroying axial upgrade hardened hd bevel gear sets?

Quote:
Originally Posted by tech712 View Post
Bevel gears dont care which direction they are run in. The gears are straight cut.
Direction of rotation is more important on helical cut gears
HD gears are helical, the stock ones are straight cut.

Last edited by Tonysmini; 03-05-2014 at 01:12 PM.
Tonysmini is offline   Reply With Quote
Old 03-05-2014, 01:10 PM   #15
20K Club
 
Harley's Avatar
 
Join Date: Jul 2004
Location: Sending illegals home one Hayabusa at a time.
Posts: 22,981
Default Re: why do I keep destroying axial upgrade hardened hd bevel gear sets?

If you are running plastic housings I highly suggest replacing them with a new set, plastic is fine. These housings seem to soften up and begin to flex over time. Once they do it once, you'll see it over and over. Replace the case I a would put money down that your problem stops.
Harley is offline   Reply With Quote
Old 03-05-2014, 01:50 PM   #16
Pebble Pounder
 
Join Date: Oct 2011
Location: SLC
Posts: 196
Default Re: why do I keep destroying axial upgrade hardened hd bevel gear sets?

Quote:
Originally Posted by monturacer3 View Post
Your problem is the massive amount of weight in the wheels. Take it all out and use knuckle weights. That will definitely fix your problem.
I would try this. That weight adds a lot of stress.
Adams is offline   Reply With Quote
Old 03-05-2014, 02:06 PM   #17
Pebble Pounder
 
Join Date: Jan 2013
Location: DENVER
Posts: 164
Default Re: why do I keep destroying axial upgrade hardened hd bevel gear sets?

Quote:
Originally Posted by monturacer3 View Post
Your problem is the massive amount of weight in the wheels. Take it all out and use knuckle weights. That will definitely fix your problem.
Quote:
Originally Posted by Adams View Post
I would try this. That weight adds a lot of stress.
This sound rights, Im been blasting around with my heavy rig on ar60s, pro4 3300, 3s, over/under gears, OG plastic housings, MMP on 155% drag, RCbros knuckle weights, NO WHEEL WEIGHT EVER, never had a problem, been well over a year, played a lot on pavement and high traction rocks. I have replaced my bearings once or twice.
WAFFLE is offline   Reply With Quote
Old 03-05-2014, 03:34 PM   #18
Pebble Pounder
 
Join Date: Nov 2010
Location: Simi Valley
Posts: 118
Default Re: why do I keep destroying axial upgrade hardened hd bevel gear sets?

Quote:
Originally Posted by WAFFLE View Post
This sound rights, Im been blasting around with my heavy rig on ar60s, pro4 3300, 3s, over/under gears, OG plastic housings, MMP on 155% drag, RCbros knuckle weights, NO WHEEL WEIGHT EVER, never had a problem, been well over a year, played a lot on pavement and high traction rocks. I have replaced my bearings once or twice.
Ditto! I run a tekin 17.5 on 3s with like 40% drag brake and I have the HD axial bevel gears and have no problems. I also don't run any extra weight what so ever since my rig already weighs in at 9 pounds. In my ax10 scorpion I have some wight in the wheels and a 45t motor with stock gears and have had no problems. Now that I say that they'll probably blow up! But yeah, take out the weight in the wheels, try it out like that, and then if you want to try knuckle weights.
monturacer3 is offline   Reply With Quote
Reply



Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -6. The time now is 04:16 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2024, vBulletin Solutions, Inc.
Content Relevant URLs by vBSEO ©2011, Crawlability, Inc.
Copyright 2004-2014 RCCrawler.com