Affordable crank bearings 3205BC3

technically it won't grenade
that said,,,, I had one where the cage started to fall apart
it sent fragments through the transfer ports and ruined my piston and head
YOU GET WHAT YOU PAY FOR!!!

That is a counterfeit bearing, 100%. Absolutely NO WAY a high quality double row bearing that size can be sold for $8, if you think it can you are kidding yourself.

I recently bought a complete set of bearings for my 1974 250 CR..
6203-2RSHNR SKF DEEP GROOVE BALL BEARING 1.00 $8.20
6205-2RSHNR SKF DEEP GROOVE BALL BEARING 1.00 $11.20
6204/C3 SKF DEEP GROOVE BALL BEARING 1.00 $6.94
6301/C3 SKF DEEP GROOVE BALL BEARING 1.00 $6.10
3205 A/C3 SKF ANGULAR CONTACT 2.00 $44.50 ea

as you can see all are SKF.. prices are in Australian Dollars..

That is older than I have done
Where does the 6301 bearing go? 12mm bore but not a "light" bearing like the ones that have an 2 for the second digit.
I am guessing the 3205 is the 9 ball per race one I think I had to get mrc which is owned by skf and it had a M in the code for the loading slot. Same bearing on both sides of the crank?

This whole affordable stuff needs minimized on internet forums especially ones for recreational topics. It is open enrollment time the real question is can you afford to go fast enough to crash and get hurt. Or in Bill's case can you afford knee injury operating the kick starter.

$44.50 each compared to Bill's bargain basement $8.00 bearing. you are not saving anything if you have to do it twice.

Bill will find out if he ever actually builds something.

The 6301 has the clutch shaft run in it..IIRC

I used the 3205 with the lesser balls and theplastic cage already in a 77/250 it held up fine. But I have four 500’s and three 430’s to rebuild.

Well my next order of five 3205 bearings came with 8 balls on a side. I notice these are the same on eBay too. The old bait and switcheroo, I’m sending them all back. My firstbearing from themhad 14 balls on a side. I’ll run the 14/28 double row balls but not the 8/16 balls. They said they were the same these are a bearing supplier right? The bearing load capabilities has to be different between the two. I don’t plan on anyone pushing my bike there riding.

Locate ball bearings substituted the first bearing I received number 3205 bc3 28 balls for number 3206btgc3 it’s 16 balls on my five bearing order. That bites.

I seen some guys here using the lesser ball bearing with theplastic cage and posted pics and you guys said nothing? He did a good looking restoration too with a lesser bearing than I was going to use.

Be aware the 5305c3 double row ball bearing I just looked up shows less balls too. Count the balls before you buy it.
https://www.ebay.com/itm/Bearing-5305-A-C3-Double-row-Angular-contact-SKF-Unused-/121175626827

Down the road I may build a 250 just to test the lesser ball bearings I have a test pilot in mind too.

There is nothing inherently wrong with plastic cages, its the quality of the rest of the bearing that really matters.

that is a correct statement
the hardness, the steel spec, the lateral load design
there are many factors in a bearing
you can use lesser bearings, but it's like gambling

Look at the specs of the bearing in the max heat it can run at.

It could be the orginal bearing could be way overkill. I can’t say for sure because no one has fully tested it yet.

ok bill..just redesign the bike. are you really worried the crank is over engineered? no one has fully tested it? what, a husqvarna dirtbike?
who cares what the max heat is? does this thing have a turbo on it?

they were tested hard during their days

what ever guys,

Here’s how bad my luck is right now. A few days ago I ordered a set of deep metric sockets from sears. I got an email to expect them on Friday. Today. I get another email the ups truck caught fire and my package burned up. How’s the chances of that happening.? I think if I bet on a one horse race it would break its leg. Go figure.

or the starting gun would kill it

Then they sent me the wrong bearings it’s a perfect day?

I ordered some new 3205 c3 bearings from across the pond a while back. I received the correct ones. So I figured I’d give a American bearing house some business but I was wrong.

no doubt..in many parts of the world

Here in Africa we have official importers and distributors for fag, skf, timken, torrington,ntn, even zkl.

I deal with them.
Surely in the mighty USA it should not be neccessary to import by yourself?