Suzuki B120 Sterring Head Bearings

[alf wayliner]

I'm just stripping down a 1978 B120 and the ball bearings and races in the steering head are totally shot. Anyone know what a direct replacement bearing sizes would be.

I've looked at some of the parts dealers and they want daft money for them but dont give sizes and I figure I can shoot down to my local bearing factors and get them at a considerable saving.

Ta in advance!

Paul

[Pete.]

All you can do is remove the bearings and take a trip to the bearing factors. Standard ball bearings are not suitable, you need proper headrace bearings either taper roller or ball type.
____________________
a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[hmmmnz]

if i remember rightly, they dont have a tapered head race, but inner and outer races with ball bearings
you might get away witha roller bottom 30X55X17 and top 25X47X15

your best bet is to see if you can pck the existing ones with a pant load of grease and then tighten it back up, or pull them out and see if my measurements are right and get some from your local bearing guy,

don't talke my measurements as gospel!!!!
____________________
the humans are dead
I kick arse for the lord
Wiring Diagrams BIDNIP it bitches

[Pete.]

Tapered race are usually replacement. You could use regular bearings, if you could find them in angular contact format, which are designed for axial loads.
____________________
a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[Pete.]

Here's the bottom one for a tenner:

https://simplybearings.co.uk/shop/product_info.php?products_id=43733

Top for about £7:

https://simplybearings.co.uk/shop/product_info.php?products_id=503110

EDIT: - even better - £3:

https://www.bearingoptions.co.uk/bearing-32006-taper-roller-bearing-30mm-x-55mm-x-17mm-1961-p.asp

https://www.bearingoptions.co.uk/taper-roller-bearing-32005-625-p.asp
____________________
a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[alf wayliner]

[Pete.]

I'm going by the sizes hmmnz posted but what you could do is remove the ones you have, measure the stem, headstock and thickness for each and put the sizes into google.
____________________
a.k.a 'Geri'

132.9mph off and walked away. Gear is good, gear is good, gear is very very good

[alf wayliner]

Eventually got the bearings for this and turns out they are as follows

Top bearing is a 324505 25x45x14

Bottom bearing is a 324805 27x48x14

Thanks for the help and advice Pete and hmmnz

Same as a GN125