9 replies to this topic

[scotty97]

I was refitting the forks on my 99 model txt270 and i thought i'd grease up the head bearings and that, been as forks were already off. i noticed the bearings were a bit sh*ty. just wondering if anyone new the part numbers of the head bearings i need for my bike. i know they sell them on fleabay but i'v got hundreds of bearings in work so i just need the part numbers and i can cross reference them then.

[Stork955]

Gday,
If you can measure the ID and OD and width's I can cross reference them in my book and give you a number/s.

Cheers,

Stork

[scotty97]

Ok I'l try and measure them, to be honest i was hoping some one would know the part numbers cos i've built the front end of the bike back and didnt really want to take it back apart until i had the new bearings. is there any other info u'd need cos the bottom head bearing is a tapered bearing????/

[JanDyb]

If it is the same bearings as the Pro uses (why not?) I think I have one lying around. I`ll check the numbers when back from work.

Both the upper and lower bearing are tapered BTW...


-Jan

[PeterB]

Hi scotty,
These are not the same as the PRO head stock bearings, they are taper roller but a smaller size than the PRO. Look for an equivalent to HIC LM117 49/10.
Pack with a water proof grease like Mobil HP or similar.
Bye, PeterB.

[scotty97]

OK Cheers peterB, r the upper and lower steering bearing exactly the same??????

[PeterB]

Yes!

(This has to be my shortest answer ever)

Bye, PeterB.

[scotty97]

Hi Pete

I cross referenced that part number and found some bearings

Dimensions are Internal 17.462mm External 39.878mm and width 13.843mm


Does this sound right???? the shaft seemed bigger than 17mm but i cant really remember.

[scotty97]

are you there pete??? ha ha ha

[PeterB]

Hi scotty,
Here I am!
Your cross references are fine, I just measured up an old brg with a vernier to get nominal sizes 17x40x14.
Bye, PeterB.