[Michael Cook]

Hi all, Firstly I'd like to say tanks for reading my post and a big thank you to everyone on the forum for all you contribute, the information I get on this forum has been incredible.

I am looking for the bearing codes for the crankshaft bearings on my 2007 CRF250R, I am rebuilding my motor over the weekend and have bought every part except the crank bearings, I haven't been able to split the casings to see the codes (crazy deadlines at work) and I need to order the bearings from SKF.

I know a lot of people on this forum have rebuilt these motors, I'd truly appreciate it if someone could have a look and tell me the codes on these 2 bearings.

[JimDirt]

Welcome to the site !!

So are you asking for the OEM Part Numbers ??? , or the size of the bearings ?? , or something different ?? , slightly confused here....

This is a parts fiche that shows the bearings and their part number in the list below the picture along with the bearing sizes , if thats what your looking for , hope that helps

http://fiche.worldofpowersports.com/yel ... 0CRANKCASE

[Michael Cook]

Thank you so much for your response, My workshop manual shows the size and OEM part numbers, but because I am buying the bearings directly from a bearing manufacturer and not Honda they are asking for the numbers that are physically stamped on the bearing.

[Michael Cook]

Could it be that:
BEARING, SPECIAL ROLLER - 91002-KRN-A11 is NTN JAPAN QS 8E-NK 39x58x16-2

BEARING, RADIAL BALL (30X72X16) - 91001-KRN-671 is NTN 3TM-SX06C62CS44 JAPAN 15B-56 140715

[JimDirt]

The bearing size , is in the description , and they should be able to go by those numbers to get you the correct bearing

[Michael Cook]

Thanks so much JimDirt, I really appreciate it.

[JimDirt]

Just to clarify ...

Just go the the Parts Fiche i linked in the prior reply and go the the bearings you need , in each description it gives the numbers in the parentheses ( ) , those numbers ..EXAMPLE: (30X72X16) , is the physical measurements of the bearing you listed , so they should be able to replicate it from those numbers specifically , those numbers are in MM ...hope that helps