120. Which of the following statements defines the term «axial float» in reference to reduction gears?

A pinion is capable of free axial motion, mating with a fixed double helical gear which establishes its position in the gear train.
The gears are not subject to excessive tooth loads due to mismatching of the journal bearing halves.
The gears are capable of free motion, neither supporting nor being supported radially by other gears.
The gears cut with a single helical profile have axial thrust eliminated.

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