808 Diff Bulkhead Bearing Failures Explained

Tank time · **Posted:** Fri Jul 18, 2008 03:43:17

Rocco, thanks for tip on the ceramics. I ordered a full set for the state titles as they were only $50 US a set for the 808. I've never used them before so I thought I would give them a try.

The great news we have heaps of bearing options now!

Mader · **Posted:** Sun Jul 20, 2008 19:01:31

Ashalak · **Posted:** Sun Jul 20, 2008 19:24:32

UndergroundRC · **Posted:** Sun Jul 20, 2008 21:18:19

Steve Walters · **Posted:** Sun Jul 20, 2008 21:40:22

UndergroundRC · **Posted:** Tue Jul 22, 2008 21:53:22

Ready Rollers Bearings...

I tested two sets of these in both front and rear and they held up ok, except the last set in the rear finally failed. The first set I installed in the front failed quickly, but that was before I did the drive shaft mods. I would give them a 7-10 or so.

AVID....
I'm testing the AVID bearings this week since they have the 19x13 outs now.

Big race next week, two day event O'Donnell Summer Championships, so I hope they hold up! I'm hoping to be the one "no-name" guy, amongst the Pro A-main line-up.

:lol:

auto2 · **Posted:** Tue Jul 22, 2008 23:35:39

underground- with the shorter shaft u made can you leave the seal in the bearing without it falling out? if you can that would show you are on the right track in my book.

UndergroundRC · **Posted:** Tue Jul 22, 2008 23:40:33

I wouldn't leave the bearing seal in. Xray recommends taking it out, I would stick to that.

auto2 · **Posted:** Tue Jul 22, 2008 23:48:45

no my point being the seal should not be forced out like this. i was wondering if your shaft mod helps and with it the seal doesnt fall out. i mean have you ever seen a bearing where the dust seal wont stay in ? may be a hint of the problems you are having? maybe a vibration? or flexing in the housing? just doesnt seem right to me.BTW i have hours on my brushless 808 with no bearing problems.

boogeyman · **Posted:** Wed Jul 23, 2008 20:18:11

UndergroundRC · **Posted:** Wed Jul 23, 2008 20:35:11

daveg · **Posted:** Wed Jul 23, 2008 21:22:53

Rocco Margiotta · **Posted:** Wed Jul 23, 2008 23:11:45

daveg · **Posted:** Thu Jul 24, 2008 00:29:08

sure is rocco..it might be a little more drag in the bearings but it keeps all the crud and water out of them..heres my pinion bearings after 4 gallons,just gave them a blast out with carb cleaner ready to regrease..for another 4 gallons

XRAY - Model racing cars

808 Diff Bulkhead Bearing Failures Explained

Who is online