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A pair of spur gears consist of 25 teeth pinion meshing with a 115 teeth gear. The module is 5mm. Calculate the tooth thickness.

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in Machine Design by (86.7k points)
A pair of spur gears consist of 25 teeth pinion meshing with a 115 teeth gear. The module is 5mm. Calculate the tooth thickness.

(a) 6.23mm

(b) 5.44mm

(c) 7.854mm

(d) 8.16mm

I need explanation for this question from during a practical exam.

This challenging question is from the System of Gear Tooth module in lesson Rolling Contact Bearings, Spur Gears and Helical Gears of Machine Design

1 Answer

0 votes
ago by (48.2k points)
Accurate choice is (c) 7.854mm

Easiest explanation: T=1.5708xm=1.5708x5mm.

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