Question

1 ) Why does square thread is used in screw jack?
स्कू जैक में वर्ग धागा का उपयोग क्यों किया जाता है? ?
A) Low fnction | कम घर्षण
B ) Very strong 1 gada
оооо
C) Easy engagement IT
D) Easy to manufacture | निर्माण करने में आसान​

Answer 1

Explanation:

The large area of sliding contact between the screw threads means jackscrews have high friction and low efficiency as power transmission linkages, around 30%–50%. ... In heavy-duty applications, such as screw jacks, a square thread or buttress thread is used, because it has the lowest friction and wear.

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