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Gear classification by pitch-line speed: Over which peripheral velocity range are gears termed medium-velocity gears? Use standard machine design bands for low, medium, and high pitch-line speeds. Choose the correct option.

Q: Gear classification by pitch-line speed: Over which peripheral velocity range are gears termed medium-velocity gears? Use standard machine design bands for low, medium, and high pitch-line speeds. Choose the correct option.

Given data We must select the standard medium peripheral velocity band. Concept / Approach Common reference bands: Low ≤ ~3 m/s; Medium ≈ 3–15 m/s; High > 15 m/s. Reasoning Therefore, the correct medium range is 3–15 m/s. Final Answer 3 – 15 m/s