+1 vote
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A herringbone speed reducer consist of 20 teeth pinion driving a 100 teeth gear. The normal module of gear is 2mm. The face width of each half is 30mm and Lewis factor is 0.4. If permissible bending stress is 500N/mm², then calculate the beam strength.

(a) 15000N

(b) 12000N

(c) 8000N

(d) 10000N

I need to solve this question that I got in my coursework.

This question was presented in the Rolling Contact Bearings, Spur Gears and Helical Gears module in part Rolling Contact Bearings, Spur Gears and Helical Gears of Machine Design

1 Answer

0 votes
ago by (48.2k points)
The correct option is (b) 12000N

Explanation: S=mbσY.

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