Yes it is possible to fit a collar to a common size bearing to replace the odd originals.
I'm looking at doing just that for my own motor - if I've got to set up to make 2 I can make more.

How much demand is there for these ? The very low NZ dollar against the euro would make them pretty good value
if I did a batch. I'd have to have them finish ground to very fine tolerances but I can have that done locally to me.

Would one of the German - speakers on this site like to put up a translation & we'll see what interest there is.

And yes I've done this before for bearings in Yamaha 4 - wheelers used on NZ farms - Yamaha can be very awkward with bearing sizes - I've thought for years a designer at Yamaha must have a relation who owns a bearing company!

Greg

Well, i think the most of us Krauts can read english a little bit, and dict.leo.org also exists. So keep on discussing here.

Für die Krauts die garkein English können: Es geht darum, Adapterringe für die Kurbelwellenlager anzufertigen, so dass man Standardlager anstelle der teuren Yamaha-Lager, die keine Norm-Maße haben, verwenden kann. Greg könnte solche Ringe anfertigen, und er fragt ob da noch mehr Leute Interesse dran hätten. Müssten zwar aus Neuseeland verschickt werden, aber der Dollarkurs wäre gerade günstig.

Gruss,
Georg

The problems are perhaps the shipping costs and the costs for money transfer to NZ... Does anyone know how much the original bearings do cost?

Hier wieder die Übersetzung: Greg wartet gerade auf ein Angebot von einem Kumpel der eine Dreherei hat, über 5 oder 10 Sätze (10 oder 20 Stück) der Ringe. Der Neuseeland-Dollar kostet gerade 46 Euro-Cent, so dass wir evtl ein Schnäppchen machen könnten, aber ich glaube der Versand und die Überweisungskosten nach Neuseeland könnten evtl zu teuer sein. Weiss jemand, wie teuer die original-Lager sind?

Gruss,
Georg

Okay Guys I've got the prices.
For a pair of bearing adaptors $NZ 70.00 plus postage to Europe $NZ12.00
The adaptors will be made from 4120 hollow bar on CNC equipment - so very good quality.

At this end of the world the bearing prices are - Yamaha original $NZ 182.80 ea   Common 6308 C3 $NZ 61.08 ea.
These are the prices I would pay here with my trade discounts & incl tax.
I do not want to supply bearings as I suspect the difference between the prices may be bigger in Europe.

At the moment the NZ dollar is trading around  .46 Euro. My wife says we can use her Paypal a/c so money transfer should not be a problem. I'm in no hurry to order a batch as my friend is very busy now but he will have time in 6 - 8 weeks.
If you are interested in ordering please email me - do not send money yet.


I would be much obliged if one of the watching members could add a translation  -  Danke

Hm, Sepp always says, that monologues are forbidden here... ;-)))

It seems as if there is not much interest in these adapter-rings...

Bye,
Georg