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Old 01-12-2009, 07:51 PM   #1
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Default Looking for the best clutchbell bearings, bar none!

i've been trying different brands and types of bearings for a while and can't settle on 1. i know how to set mesh and how to shim the bearings but i can never get a full race day out of a set and even with a new set for a main still wonder if they will make it. i'm thinking of trying the acer bearings next, teflasonic or poly something or ceramic. so far i've tried panther m/r, ae/ ttr, racers edge, big bearings, tko, protek, and some others i can't remember. i have had sets last 2 gallons and others last a tank, just not consistent enough for me.
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Old 01-12-2009, 07:54 PM   #2
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Did you try the Kyosho bearings? We had the best usage from those so far. The key also is the shimming and keeping about 0.3-0.4mm of CB endplay.
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Old 01-12-2009, 08:33 PM   #3
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Ive been using the Boca Ceramics with the Green Seals. I can get 2 full race days easy and have gone more. I just change them atleast 2 races to be safe. They are around $2.50 each, but they last longer and it isn't worth a breakdown in a Amain for a few extra bucks.
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Old 01-12-2009, 08:53 PM   #4
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I dont know if these are the best hands down but I leave these in for 1 gallon at a time and never failed for 9 gallons so far...... not that expensive either
OFNAPart: 40683 special long last clutch bearings
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Old 01-12-2009, 09:03 PM   #5
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I run these 7804K106, I get from McMaster-Carr. They are nice, I Got 2 gallons on the current set and still going strong. Mileage will vary with clutch set-up, track conditions etc etc. i think the biggest benefit to them is they are oil filled not grease filled. Biggest draw back they are $8 each!!

Luckily, my families business orders from there and I can slide some bearing as shop supplies as part of my "sponsorship" lol
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Old 01-12-2009, 09:06 PM   #6
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You have other problems if you are going through bearings that fast. It has to be a bent crank, warped clutch bell or excessive chassis flex/bent chassis. Maybe its shimmed too tight. I use $1 Avid bearings and they last me about a gallon.
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Old 01-12-2009, 09:06 PM   #7
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i was havin clutch bearings go out after every race, i couldnt figure out why.but i ended up figuring out i had a front bearing leakin in the motor causing the pads to slip and bearings to fail. it was leakin so minimal that my tune wasnt affected. just a thought maybe thats why yours are failin
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Old 01-12-2009, 09:10 PM   #8
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Gear mesh, shimming isnt nearly as important as chassis flex....

if its all over the place no bearing is going to live

Anyway, I've run AVID stuff for years.... never had any failures. Usually my clutch is done in about a gallon and I throw some new ones in while I'm in there. Theyre only a buck a piece
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Old 01-12-2009, 09:11 PM   #9
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Quote:
Originally Posted by sickboy View Post
You have other problems if you are going through bearings that fast. It has to be a bent crank, warped clutch bell or excessive chassis flex/bent chassis. Maybe its shimmed too tight. I use $1 Avid bearings and they last me about a gallon.
Yep another happy AVID user...awsum bearings, last me about 2 race meets
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Old 01-12-2009, 09:13 PM   #10
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Hard to beat Avid bearings, I have heard alot of good things about the ready rollers as well
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Old 01-12-2009, 09:58 PM   #11
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+1 on the Avids. I use them in my entire buggy, and they are awesome. I swap out all my bearings after a gallon. $1 a piece VS. 5 hours of bearing cleaning and re-lube..I'll take the new bearings
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Old 01-13-2009, 03:50 AM   #12
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Hard to beat Avid bearings, I have heard alot of good things about the ready rollers as well
Mikey! There goes the neighborhood! Readyrollers rock! No offense to Avid but I dont buy them anymore. They are too inconsistent for me. There is a guy a ebay I think 4c hobby supply that has good stuff too.
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Old 01-13-2009, 03:54 AM   #13
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+1 Avids Revolutions! and keep in mind if you have had bearings blow apart in a clutch bell, its probably best to change the bell as well, its more than likely damaged. If the bearings are aloud to rock in their seat they wont last long. The bearing should fit nice and snug and not rotate in the bell.
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Old 01-13-2009, 04:41 AM   #14
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i use boca bearings.. i have never had one fail..
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Old 01-13-2009, 04:44 AM   #15
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Quote:
Originally Posted by sickboy View Post
You have other problems if you are going through bearings that fast. It has to be a bent crank, warped clutch bell or excessive chassis flex/bent chassis. Maybe its shimmed too tight. I use $1 Avid bearings and they last me about a gallon.
Honestly this was the best answer to your problem. It's not the bearings you have another problem somewhere. You should be able to get 1 race day atleast on your bearings whether they are avids or advantage ceramic or metal. I was having the same problem tried more expensive bearings. Nothing changed I was still blowing bearings. Finally diagnosed the problem as to much chassis flex. Added a kingshead 1 piece extended motor mount to reduce flex. Have not blown a CB bearing since. J-Blaze I know you know your stuff and have been racing for awhile. However you should look at other areas for your problem fix. $1 bearings are all you need.

I run a CB bearing eating Losi and I get a gallon out of Advantage bearings .
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