The ‘J P T I’ unit consists of, a base upon which bearing holders and driving motor are coupled. Bearing holder is provided for fitting various bearing to provided different conditions for test shafts, viz. both end fixed and one end free. A variac provided for speed control of driving motor. The unit demonstrate the phenomenon of whirling of shaft. After the test shaft can not be used, hence unit only demonstrate the principle.
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Karad, Satara, Maharashtra