wear indication
also called wear indicator · wear warning
WHAT PROVISION THE PART CARRIES FOR WARNING THAT IT IS WORN OUT — none, an acoustic squealer, an integrated electrical sensor, or a prepared slot for a sensor sold separately. THREE POSITIVE STATES AND NOT A YES/NO, which is the finding, and it is Textar's own catalogue that proves it: 2087702 and 2242501 are published `prepared for wear indicator`, 2627701 is published `with wear indicator`, and 26277 is published with an `integrated` one. A part that is prepared for a sensor is not a part that has one and is not a part that has none, and a boolean would have to lie about one of the three. Brembo's separate catalogue line of electric wear sensors exists precisely because so many parts are the prepared kind. Cardinality MANY, on the live `integral_valve` precedent and for a real reason: a part can carry a mechanical squealer and a sensor channel at once. A `no wear indication` value is minted rather than leaving absence blank, again on `integral_valve`'s and `water_separation`'s precedent, so that absence is a claim the shelf can filter on. NOT DERIVABLE from anything else the pool holds [A13]: two parts of the same maker, same compound, same axle and same dimensions differ here, which is exactly the pair Textar publishes.
Wear indication is answered with one word chosen from the wear indication types list — the same word shared across every product that uses it.
It belongs to measurement — its measurable, physical facts.
asked by the kinds that answer it
1 kind answers it, each for any number of values. The same question can be reused by unrelated kinds — one meaning, many homes.
asked by kinds that answer it
The same question can be reused by unrelated kinds — one meaning, many homes.
| kind | how many |
|---|---|
| brake friction part | many |