Cassette kit arrived! Really wish I knew where they get the cassette units from; I'd love to buy a couple for future motor builds.
Bolt-on cassette! Go figure:
Outer cassette bearing: 6901Z
First issue I've found:
cassette bearings are Z or ZZ style covers. Inner is a 6902ZZ, outer is a 6901Z. (yes one Z. Meaning only a cover on one side of the bearing. Due to the nature of bikes and Oregon's ever-present moisture content, I've already ordered 2RS-style (rubber contact seal on both sides) bearings to replace both bearings. Should keep out moisture and debris that way, and keep most of the lube in. Because they were cheap, I got hybrid steel race/ceramic ball units off ebay. I'll post pics when I receive them so you can see install procedure:
Cover for other side looks like the new design used by the 1000W motor; looks like that ridge may allow for a shaft seal to be installed. Hmmmmm....
How they pass the wire through the shaft:
Obviously the shaft is keyed to the stator, and it looks like there's a snap-ring groove on the side without a flange to lock it to the stator:
Cassette end of shaft is smaller diameter just after where inner bearing sits for cassette unit.
(Cassette placed for reference so you get what I mean)
Screws for mounting the cassette unit and the 3mm phase wire bundle:
Brake rotor side: Standard thread.
Cassette side: Slightly finer-pitch thread; they supplied nuts and washers for this side. Not sure if this is because this shaft was cut custom for me or if this will be the final design: