Right side crank bearing is discontinued. Honda shows it as a S6306 C3. Is this really a stainless steel bearing? i believe the S indicates Stainless.

Is a stainless bearing Magnetic? Could someone try a magnet one an OEM bearing and let use know if it sticks or not.

Honda Part # 91033-HE0-005

I don't need one right now but would like to have one in my parts box.

Has anyone paid ATVR ripoff price on ebay?

My local Bearing house has a NTN 6306 C3 bearing n stock for around $32.00.

Is the ATVR bearing stainless?

Maybe we could do a group buy thing. I bet Hoser and Mud already have a few on hand.

Looks like we will need a good replacement - Whats your thought/experience?

We need to find replacements now since they are going to be discontinued might as well do a group buy.

Honda part numbers are
91032-HE0-005 BEARING (6306) (C3)
91033-HE0-005 BEARING (S6306 C3)


The numbers on the bearings are in the attached picture

Might as well find a source for the seals too?

I will send a email to LEE see about getting the engineering data on this stuff and see what brand of bearings is good these days.

Here is a scan of the two crank bearings.

Im in for 2 sets of seals/bearings

I have a new set of mains for my next rebuild they are KOYO or another good brand my Engine guy got for me. I will snag some pics and numbers and compare to factory. I plan to send a set to hoser to install in my zero maintenanced pilot Engine for extreme testing this year.

we done this before but there was never a great need and the left bearing was our main concern as the clutch side seems to fail first.

We should see what all is available

what would be considered an upgrade to OEM

what 2 stroke racer guys are using


I was told the S on the OEM bearings do not apply to standard codes, that it could of been anything sort of like an "X" pre-fix or suffix in most industrial equipment, it typically means that was a change from the base model, it could of been anything from type of material used, to propriatary company designs they don't want shared to anything really.


C2 Radial internal clearance less than Normal
C3 Radial internal clearance greater than Normal
C4 Radial internal clearance greater than C3

http://www.ahrinternational.com/NTN/NTN ... mcodes.pdf

The bearing house by me has a pile of the 6306 c3's...FAG was the more expensive and Peer was the less expensive. She told me the 6306/32 indicates a 32mm bore which may be tough to duplicate.(Kinda looks that way from the pics IMO...Was told the standard bore of the 6306 was 30mm) Something custom made in quantity for the OEM during original production? Count me in if a min. order is needed to satisfy a run on that s-bearing. Unless someone can call Nachi direct? Or is there a jedi among us that has the innz somewhere?

They don't have to be Nachi bearings any brand name will do its just I no longer know what brand of bearing is considered good we need a industry insider to tell us who is the new quality top dog with bearings.

FAG is made in Germany and what ROTAX uses in their 2 stroke engines I have worked on use to be a quality bearing dunno what brand is good now days.

Mag side bearing is a larger ID I didnt measure and would rather get the exact dimensions and specs from LEE before we order.

I would like to get in for a couple. I think it is time to start stocking up on what I can from the looks of things.

Searching the web for the mag side bearing it measures 32X72X19 mm C3 clearance, its a special size ID bearing hard to find, found this searching need a someone to translate the french for the application no idea if its a C3 clearance bearing or not.

Open the PDF file and go to page 3 or search the document for 32X72X19 looks like a pinion shaft bearing? Have no idea for what application the original name of the PDF was cata-A110-Cinematique-GB-1.pdf Renault Alpine A110 maybe?

Are we facing another special bearing like the bearings for the input shaft on the fl400 tranny? why in the heck did Honda have special size bearings made??????????

I'm a little confused - is the special size bearing the one that is discontinued (Right Side) or is it the other side?

this guy has a set with seals


http://cgi.ebay.com/ebaymotors/HONDA-PI ... ccessories

and ATVR found a replacement bearing

http://cgi.ebay.com/ebaymotors/FL400-Ho ... ccessories

Below is the email reply from Lee
------------------------------------------------------------------------------------------
This bearing is trouble.

First the current Honda part 91033-HE0 -0050

S6306 C3 is a Special 6306.
The standard 6306 has a 30mm bore, this bearing has a 32mm bore.

NTN bearing catalog http://www.ntnamerica.com/website/docum ... lowres.pdf

NTN dose not show anything with this size.
However they have a 63/32 shown on page 29 of the link above.
The problem with this bearing is the width is 1mm wider than the stock bearing.
I would be reluctant to bore the case out 1mm, it wouldn't lose much strength but this is not an area you want to sacrifice strength in.
On the positive side, there is about a 20% increase in dynamic radial load capacity.

There is another possible drawback.
Special bearings may show up in the catalog but they are not available.
If you want to set up a contract for several thousand the bearing companies are happy to supply them.
If you want just a hundred, forget it.
I have no idea if these bearings are available.

Other Honda bearings

There is a 91001-HP1 -6710-M1 bearing.
This is a 33X72X19 bearing, so the ID is 1mm larger.
you could make a shim that presses in to the bearing Id, use locktite if needed.
This shim doesn't need to be hardened, it will not be adding to the bending strength.
Make sure the inner bearing is retained in the same way as before.
I didn't pull the Engine case assy drawings, Honda usually makes the bearing a light press fit on the shaft and pinches the inner and/or outer bearing to keep things from moving around.

This bearing has about an 8% increase in radial dynamic load.

The 91032-HE0 -0050
This is a standard 6306 C3 bearing.
There should be no issue picking them up from what ever bearing house you go with.

Bearing suppliers

We use a few standard suppliers, mainly NTN.
I have no information on the quality of other suppliers but I would think the well known bearing houses are near the same.
My impression is that the test specs of bearings has long been standardized, as long as the supplier isn't lying you should be OK.
The really cheap places skimp on the ball cages (inferior materials or attachment) and with the seals (plastic instead of rubber but this dose not apply in this case).

so if 91033-HE0 -0050 is a special size, what is atvr and atv/cycle joint selling???? Did these guys have a special bearing made? I strongly doubt it.

I been looking at this problem for a few months now as the right hand bearing has been discon in the UK for a few months so i sent my last bearing to specialise bearing supplier we use in work told him it need to be the same or better spec to the honda one..only 2 choices on the market a cheap Timming bearing and this Fag bearing, the guy told me it had a higher spec than the OEM, i have mic'ed it up and is a perfect size... they did cost quite alot $60 each but guy said i could get a big discount if i bought enough.....

FAG still made in Germany ?

60 bux because they have to make a batch?

Any idea how many we need to buy to get a lower price we can take a head count see who all wants to buy some, I would take two I would think every Pilot owner would want at least one they will need it sooner or later.

Also what about a package deal on this bearing and the clutch side bearing?

Thanks

Yes they have Germany stamped on them.......
Yes these were specical order took about a month to come in so probs made to order???
no idea how many we would have to buy to get a good price....but easy 50% if we buy enough..
the left hand bearing is a common one ,the guy said there was about 20 different brands of bearing even the Nachi bearing is still available...

Yes the clutch side bearing is easy to get you can still get it from Honda, I thought maybe while you had them on the phone asking about discounts you would ask if we bought both the clutch side and mag side bearings if that would help us get a better price.

When your changing the mag side bearing you need the clutch side bearing at the same time so might as well buy in pairs.

Cool i'll ask him.....

hey pilotpete please check your pms - i sent you a pm some days ago.

Hi sorry not got a PM .....try pilotpete1 instead of pilotpete can't get into that account for some reason any more?? or try pbalz@hotmail.com

pm sent to pilotpete1

When ordering the bearing from randy at ody salvage he told me he can get a sks brand instead of honda if I wanted that. He said he liked the sks better. I don't know if this relovant (not spelled right) info here but its something I thought
i would throw out there.

Wouldn't it be nice if we can get both sides in the FAG bearings or does it not matter?

Also pilotpete can they make the discontinued tranny bearing for us?

what the part number of the tranny bearing??? i will get him to check......

Here are some post on the subject
viewtopic.php?f=1&t=3004&start=40
viewtopic.php?f=1&t=7090&view=next

Ok i have them in stock ,so should be able to get them matched also.......