R/C Tech Forums

Go Back   R/C Tech Forums > General Forums > Electric On-Road

Reply
 
Thread Tools Search this Thread
Old 02-07-2005, 02:24 PM   #1
Tech Adept
 
NOZ69's Avatar
 
Join Date: Jan 2005
Location: Nowra (Sth Cst NSW) Australia
Posts: 198
Default Boiling Gears ( 4 strengthening )

G`day ppl`s,

Years ago (15+) when i was last into R/C Cars & Slot Cars we used to boil our spur/diff gears to strengthen them.

The theory behind was a "uniform heat up & cool down"

We even used to add cloths die to colour them too.."bling Factor".

So my questions are

1 :- Is this still a common practice or has it been forgoten about.

2:- Is there another way..

3:- Or are the gears these days strong enough already.

Thanks Again

Cheers
__________________
FT TC4, LRP TC Sphere, LRP X-11 13.5
SC10 4x4
M03M Suzuki Swift
Power by Feral
Sanwa MX-3 FHSS

Last edited by NOZ69; 02-07-2005 at 02:37 PM.
NOZ69 is offline   Reply With Quote
Old 02-07-2005, 02:26 PM   #2
Tech Champion
 
RCGaryK's Avatar
 
Join Date: Sep 2003
Location: Champaign, IL
Posts: 7,331
Trader Rating: 3 (100%+)
Default

It's not done that often, mostly in some shaft drive cars internal gears. The boiling seems to make the gears less brittle and less prone to stripping.
__________________
Site Content Specialist- Surface
HorizonHobby.Com

Horizon Hobby is on YouTube with hundreds of different videos! Visit us at
http://www.youtube.com/HorizonRCdotCom
RCGaryK is offline   Reply With Quote
Old 02-07-2005, 02:26 PM   #3
Tech Adept
 
Join Date: Sep 2004
Location: Trondheim, Norway
Posts: 139
Default

It is quite common to boil the bevel-gears on the Pro4. This makes the gears stronger someway, meaning less breakage.
Erlend is offline   Reply With Quote
Old 02-07-2005, 02:28 PM   #4
Tech Elite
 
mafiaracers's Avatar
 
Join Date: Mar 2004
Location: West Linn, Oregon
Posts: 3,759
Trader Rating: 22 (100%+)
Send a message via AIM to mafiaracers Send a message via MSN to mafiaracers
Default

Are you talking just the spur?....or dump the whole tranny into the water?
__________________
Chris Woods

MAFIA MOTORSPORTS
http://www.rctech.net/forum/r-c-items-sale-trade/168239-pit-board.html

TEAM WAVE
www.teamwaveonline.com

TQ Racing Wire
www.tqracing.com
mafiaracers is offline   Reply With Quote
Old 02-07-2005, 02:35 PM   #5
Tech Adept
 
NOZ69's Avatar
 
Join Date: Jan 2005
Location: Nowra (Sth Cst NSW) Australia
Posts: 198
Default

Quote:
Originally posted by mafiaracers
Are you talking just the spur?....or dump the whole tranny into the water?
GEES... thanks for the QUICK responses..

We used to do both spur & diff gears (all B4 assembly)...seemed to work back then,
but with the advances in technology since then, i`m thinking that may be it`s not needed as much.

Thanks Again

Cheers
__________________
FT TC4, LRP TC Sphere, LRP X-11 13.5
SC10 4x4
M03M Suzuki Swift
Power by Feral
Sanwa MX-3 FHSS
NOZ69 is offline   Reply With Quote
Old 02-07-2005, 02:54 PM   #6
Tech Elite
 
mafiaracers's Avatar
 
Join Date: Mar 2004
Location: West Linn, Oregon
Posts: 3,759
Trader Rating: 22 (100%+)
Send a message via AIM to mafiaracers Send a message via MSN to mafiaracers
Default

well....if you're making the gears a skosh harder, wouldn't that make the drive-train run a little noisy?
__________________
Chris Woods

MAFIA MOTORSPORTS
http://www.rctech.net/forum/r-c-items-sale-trade/168239-pit-board.html

TEAM WAVE
www.teamwaveonline.com

TQ Racing Wire
www.tqracing.com
mafiaracers is offline   Reply With Quote
Old 02-07-2005, 03:39 PM   #7
Tech Elite
 
kufman's Avatar
 
Join Date: Feb 2004
Location: Elburn, IL
Posts: 3,428
Trader Rating: 6 (100%+)
Default

boiling nylon spur gears would actually make them softer and less prone to shattering. It was common practice to boil associated nylon arms and stuff too. It was supposed to make them more flexable and less brittle.
__________________
Brushes? We don't need no stinking brushes!!!
kufman is offline   Reply With Quote
Old 02-07-2005, 03:52 PM   #8
Tech Addict
 
Join Date: Oct 2004
Location: farmington, mi
Posts: 695
Send a message via AIM to greencactus3
Default

and wont makeing gears harder mean its more easier to break?
greencactus3 is offline   Reply With Quote
Old 02-07-2005, 03:54 PM   #9
Mal
Registered User
 
Join Date: Jun 2002
Posts: 471
Default

Kaufman is correct, plastic doesn't act like metal where heat treating the material hardens it.
Mal is offline   Reply With Quote
Old 02-09-2005, 03:58 PM   #10
Tech Apprentice
 
Join Date: Jan 2005
Posts: 84
Default

I've usually heard of this either the other way around, or WAY more heat the other way.

Iron can be case hardened by blowtorching it to glowing and throwing it into water. This makes the metal harder, but more brittle; It's much the same principle as glass. Woodworking tools have this done to them for a longer-lasting edge.

You can also freeze metals very slowly using liquid nitrogen, then let them warm up. This arranges the molecules in a more orderly pattern and makes the metal stronger that way.

Didn't know just boiling water could make that kind of change to metal structure.
Liko is offline   Reply With Quote
Old 02-09-2005, 05:37 PM   #11
Tech Master
 
scoobydo's Avatar
 
Join Date: Sep 2004
Location: Bay Area San Jose
Posts: 1,501
Trader Rating: 1 (100%+)
Default

Since I own a Pro4, I have only heard of this practice still being used for the internal bevel gears on Shaft Cars.
The boiling just makes the bevel gears softer so they don't shatter on hard impacts or stress.
Pinions are mostly all aluminum nowadays and racing spur gears are usually soft enough to not need it.
scoobydo is offline   Reply With Quote
Old 02-09-2005, 06:13 PM   #12
KSI
Tech Adept
 
KSI's Avatar
 
Join Date: Jan 2005
Location: Michigan
Posts: 197
Send a message via AIM to KSI
Default

when you heat treat metals, most of the time you are turning those little carbon "flakes" into round blobs to the material does cleave. FYI.
KSI is offline   Reply With Quote
Old 02-09-2005, 07:57 PM   #13
Tech Master
 
axel's Avatar
 
Join Date: Jan 2005
Location: NorCal
Posts: 1,226
Default

i have apro 4with the bevel gears. is ti ok if i dont boil them
axel is offline   Reply With Quote
Old 02-09-2005, 08:04 PM   #14
Tech Master
 
scoobydo's Avatar
 
Join Date: Sep 2004
Location: Bay Area San Jose
Posts: 1,501
Trader Rating: 1 (100%+)
Default

Quote:
Originally posted by axel
i have apro 4with the bevel gears. is ti ok if i dont boil them
If you have the 1.1 gears you should be fine.
You will still bust them in a hard crash no matter what you do or what version they are.
If you have the older gears, then I would probably recommend boiling them.
Either way, I would recommend having a spare set in your toolbox.
scoobydo is offline   Reply With Quote
Old 02-09-2005, 08:07 PM   #15
Tech Master
 
axel's Avatar
 
Join Date: Jan 2005
Location: NorCal
Posts: 1,226
Default

i think i have the 1.1 so i think i'm good
axel is offline   Reply With Quote
Reply

Similar Threads
Thread Thread Starter Forum Replies Last Post
boiling parts? cm367700 Electric Off-Road 6 11-17-2007 11:18 PM
1/10th Pan Car Setup - CORALLY C10X - Gears, Gears, Gears? paul73rc Oval, Larger Scales and More 4 04-06-2007 10:10 PM
boiling the wing... Tmachine Electric On-Road 16 02-10-2005 06:23 PM
boiling YOKES ! JayBee Electric On-Road 18 03-31-2004 09:24 AM
Boiling XXX-S Graphite Parts? ElectroNut Electric On-Road 4 01-28-2002 05:38 AM



Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are Off



All times are GMT -7. It is currently 05:24 PM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net