Currently we sell it as RBL - 51.
Plenty of information out there on the RBL-51 they refer to. Most of it is in the Japanese language, of course, but a photo is a photo.
Photos show more of an evolutionary heritage that revolutionary, so the often challenging needfuls such as spindle bearings might yet be common.
The newer one has less baggage hanging off the arse-end, so there is a high probability it as gone over to VFD control for its final-drive motor as well as relocating auxiliary and coolant pump to backside and TS end to free-up that rumble-seat structure.
You could luck-out and find at least a few current parts that are common to your older one. Even so, at present-day Japanese prices, you might be doing the DIY-unobtanium route in preference to the spend. If even it actually needs anything much, components-wise at all.
It needs a great deal OF it, but TLC alone may be enough.
The brochure they are sending is probably online if you want a look right away.
???????RBL-51?????????????????????????
That should help ID the market it was targeting. Certainly high-grade and full-featured, as already mentioned.
Functionality-set wise, looks Semi-Hardinge-toolroom-ish, mini-Cazeneuve HBX-ish (they had a factory IN Japan, so lots of exposure, no "secrets") , maybe even "big" Schaublin-ish?
That could make for a delightful all-around mount once cleaned-up!
If you were "screwed" at least it looks as if it wasn't a rape, and you may even eventually get happy smiles and repeat performances, if not breakfast in bed outta the deal!
2 yen worth
