KR-1S.co.uk Forum

Good afternoon All

does anyone fabricate or can point me in right direction of 1mm spacers

the job i am doing is fitting a KR1 wheel to a 1S front end and i have Got the 6003 2 rs bearings 17 x 35 x 10 but need 2 1mm spacers to make up the difference

if anyone can help i would be much appreciated

thanks Guys

will

what 1mm difference are we talking about will, DIA ? WIDTH?

Yeah I'm confised too, do you have any drawings of what you need?

Looking at another thread in KR - KIVE - its to make up the width of the old 11MM bearing, these bearings are down to 10mm

will need a hole of 17mm for 1s spindle -

i'm worried now but hope that makes sense as thats how i'm reading it

I think I get you, so it's more like a 1mm shim then?

What's the O/D need to be?

Luders wrote:I think I get you, so it's more like a 1mm shim then?

What's the O/D need to be?

yes mate, shim is the word i was looking for, i'm guessing the outside diameter is 35mm

My advice would be to fill in the blanks here, i.e Material, finish, tollerance etc and take it to a local machining company.

as the bearing on the left sits against the speedo drive i would say your better of fitting a 2mm longer spacer tube between the bearings to keep the outer distance of the bearing correct as i do not believe there is anything for the spacer to sit against on the r/h side of the wheel. the left bearing sits against a circlip which is behing the speedo drive then the r/h bearing is kept at the correct distance by the spacer between the bearings. hope you understand what im trying to explain

just thought aswell if you fit spacers as per bens pic the spacer will be against the inner and outer bearing race and just cause problems. i wouls suggest that you have a kr1s spacer turned down to 2mm longer than the origional kr1 spacer.

That Makes Perfect Sense Daz, Thanks very much for this

also Ben, THANKS - i will get a local firm to do off your Drawing.

Fantastic help as always on here =D> =D> =D>

Daz is right, I would look at alternatives rather than getting what I drew made. Look up a local engineering company and explain what you are trying to do/achieve and I'm sure they'll help.

Don't the spacers have to push up against the bearing inners and as long these are all clamped together ?

headcoats wrote:Don't the spacers have to push up against the bearing inners and as long these are all clamped together ?

think so, i'm confused now i'll get it rolling and then push it into a local engineering firm and ask

sorry for confusing you will, all you have to do is get the kr1s spacer tube from your donor bike machined down to 2mm longer then the KR1 tube and that's all you need to do. apart from building the wheel back up

How about 2x 1mm shims with the same OD as the bearings (and an ID that is larger than the OD of the spacer tube) along with a 2mm longer spacer tube? The washers could be installed before fitting the new bearings, holding them out the 2mm further in total that you require, and then you shouldn't have the speedo drive issue mentioned.
The shims may need a slight shamfer to match the shoulder where the bearings normally seat against, but other than that I think it'd be relatively straight forward.
Or have I missed something obvious here?