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For an Oldham coupling used between two shafts, which among the following statements are correct?

I. Torsional load is transferred along shaft axis.
II. A velocity ratio of 1:2 between shafts is obtained without using gears.
III. Bending load is transferred transverse to shaft axis.
IV. Rotation is transferred along shaft axis.

Choose between:

(A) I and III

(B) I and IV

(C) II and III

(D) II and IV

In an Oldham coupling, there is no change of speed between the two shafts. The shafts need not be co-axial but must be parallel.

Ankita Katdare
Ankita Katdare • Jun 16, 2019

Looks like a GATE exam question to me. I googled and found the answer to be: 

 (B) I and IV

Oldham coupling is used to connect two shafts which are not on the same axis means they are not aligned to the same axis

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