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1. |
A pair of parallel helical gears consist of 15 teeth pinion meshing with a 40 teeth gear. The helix angle is 22 and normal pressure angle 19 . The normal module is taken as 4mm. Calculate the transverse pressure angle in degrees. |
A. | 17.9 |
B. | 20.4 |
C. | 19.6 |
D. | 18.4 |
Answer» C. 19.6 | |