qualifier token a chosen word

which ring

also called inner or outer ring · ring position

WHICH OF A BEARING'S TWO RINGS A `ring_width` FIGURE BELONGS TO - the inner ring (the cone, the one the shaft passes through) or the outer ring (the cup, the one the housing holds). A qualifier and not a flat property beside its host, because a bearing publishes both figures and a loose token could not say which number it belonged to - the live `filtration_rating`/`filtration_efficiency` shape. Timken's own column pair is `inner B1 | outer B`; Koyo's legend is `B = Cone Width` and `C = Cup Width`. Two values and no more, because a rolling bearing has exactly two rings; a four-row mill bearing has two rings still. Concern measurement.

Which ring is answered with one word chosen from the ring positions list — the same word shared across every product that uses it.

It is a qualifier of ring width — it has meaning only inside a ring width statement, never on its own. It belongs with ring width to measurement — its measurable, physical facts.

It is answered inside every ring width statement, not as a standalone question on a kind.

answered with: ◇token — a token — a word chosen from a fixed vocabulary, shared and filterable across products.
value domain: Ring positions — the vocabulary its answers are drawn from.
qualifier of: ring width — required_one per statement — it has meaning only inside that host's statement.

Answered inside every ring width statement — not a standalone slot on any kind.