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One question per day; no prize for correct answers, it’s just for entertainment

2019-12-05View Original

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33. The main reason for imbalance in rotating parts is (). ? A. Excessively high rotational speed B. Too low bearing precision C. Uneven mass distribution D. High length-to-diameter ratio. The answer to the question from yesterday was D. 32. The ( ) error in the support seat hole and the front and rear sections of the spindle causes the inner and outer raceways of the bearing to tilt relative to each other. A、Parallelism B、Positional accuracy C、Circular runout D、Coaxiality

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