R/C Tech Forums

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

Thread Tools Search this Thread
Old 06-21-2013, 02:36 AM   #1
Tech Addict
32819toon's Avatar
Join Date: Mar 2006
Location: North of England
Posts: 568
Trader Rating: 1 (100%+)
Default Spec-R gear diff gears wearing out

On a previous car, I had to replace the gears in a Spec-R gear diff. Last night the front diff on my sons car went aswell. Has anyone else had problems with the gears wearing ? I've ordered the carbon ones to replace them, but I don't think that the gears should wear out after only about 5 months use. Weren't gear diffs supposed to replace the maintenance needed for ball diffs ?
Yokomo BD7 RS, Modified Spec-R S1, Schumacher GT12, Tamiya M03, M05, M01, M03RWD, MF01-X, BSR M-Rage, ABC Gambado, Associated TC4.
32819toon is offline   Reply With Quote
Old 06-21-2013, 03:26 AM   #2
Tech Regular
Join Date: May 2002
Location: Sweden
Posts: 405

maintenance free doesnt meen that they last forever
changing gears after 5months are perfectly normal

a balldiff needs rebuilding after every practice session, or more often if you want it at its best, thats a BIG difference in maintenance
Xray T4`16 - Hobbywing - Highest - Sanwa - Gens Ace
Schumacher Cougar KF2 - Hobbywing - Highest - Sanwa - Gens Ace
Bappe is offline   Reply With Quote
Old 06-21-2013, 07:55 AM   #3
Tech Champion
AdrianM's Avatar
Join Date: Aug 2001
Location: Tampa, FL
Posts: 5,914
Trader Rating: 4 (100%+)

Yes, 5 months from a set of gears is normal. If you Mod they won't last 5 months. You can get the gears to last a little longer if you check and reshim the gears to reduce lash as they wear.

Gear diff are no less maintenance intensive than ball diffs if you are a serious racer. That they offer is higher poerfomance than ball difs in some conditions. In others ball diffs are faster.

I rebuild Gear and Ball diffs once a month. My ball diffs would easily last a month of weekly races.
Adrian Martinez
What I run: Schumacher Mi5/Associated RC10R5.1/Associated RC12R5.2/Futaba/HobbyWing/Team EA Motorsports/BSR Racing
Where I run: Florida Indoor R/C Complex/Thunder Racing/Florida On Road State Series
AdrianM is offline   Reply With Quote

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 10:59 AM.

Powered By: vBulletin v3.9.2.1
Privacy Policy | Terms of Use | Advertise Content © 2001-2011 RCTech.net

SEO by vBSEO 3.5.0