Engine Bearings

Tom Neimeyer · Post by **Tom Neimeyer** » Wed Sep 01, 2004 9:59 pm

Some times when I order CBX engine bearings, I get bearings for the CB750/900/1100 series of bikes. I understand that they will fit and work properly however, the 750/900 bearings are made differently, or of different metals, than the 1100 bearings.

As near as I can tell, original CBX bearings (XXXXX-422-XXX) are tha same as 750/900 (XXXXX-425-XXX). The 1100 bearings (XXXXX-413-XXX) are a Tri-metal bearing and the 750/900 bearings are a babbit bearing.

After talking to several people (racers), most prefer the 750/900 bearing saying it is more "forgiving" than the Tri-metal bearings.

I also have some bearings from XXXXX-300-XXX, which I do not know what model that is.

If you have additional knowledge about these bearings I would appreciate hearing from you. I need your opinions.

One last piece of info....the 1100f bearings are stamped on the back either F-77 or F-112 and the 750/900 have a series of number/letters.

KWICK · Post by **KWICK** » Tue Sep 07, 2004 10:48 am

Honda does not use different part numbers for no reason. Over the years of working at Honda dealerships I have found that IF is was possible, Honda would use a part from a 70cc step thru on a CBR600RR. If Honda changed the part number, there was a reason. You may be able the substitute, but really, Honda has a reason that they do not use the same parts numbers.

The 300 bearings, and all 300 parts were originally used on a 69- CB750K.

333 was CB350F

377 was CB400F

425 was CB750 twin cam and some CB900F.

422 is the 79-80 CBX

MA2 is 81-82 CBX

Honda part numbers are very easy to find your way around, unlike the rest of the automotive and cycle world.

Cheers,

Pete Aronson

KWICK · Post by **KWICK** » Tue Sep 07, 2004 10:59 am

Honda does not use different part numbers for no reason. Over the years of working at Honda dealerships I have found that IF is was possible, Honda would use a part from a 70cc step thru on a CBR600RR. If Honda changed the part number, there was a reason. You may be able the substitute, but really, Honda has a reason that they do not use the same parts numbers.

The 300 bearings, and all 300 parts were originally used on a 69- CB750K.

333 was CB350F

377 was CB400F

425 was CB750 twin cam and some CB900F.

422 is the 79-80 CBX

MA2 is 81-82 CBX

Honda part numbers are very easy to find your way around, unlike the rest of the automotive and cycle world.

Cheers,

Pete Aronson