SKF fitting guide
http://www.jwtimports.com.au/downloa...ring-Guide.pdf
48mm ZF SACHS 48 x 57.9 x 9
48mm KAYABA 48 x 58.1 x 8.5
0.2mm difference in OD just means they need a little lube when seating the seal, and a little heat helps get them back out. 0.5mm depth makes little difference overall, especially considering the snugger fit.
I have used the OEM Honda/KYB seals in my Sachs for 300+hrs. I wouldn't use all balls fork seals if you gave them to me for free.