Report No 2

 

5- Problem:

A 70mm diameter shaft subjected to a tangential load of 80 kN. With a SF of 5, design a suitable feather key for the shaft.

 

Given:

F = 80 kN

d = 70 mm

SF = 5

 

 Required:

Design a feather key

Solution:

From Chart 12 (for the shaft diameter 70 mm):

b x h = 20 x 12

Chose material EN8

From Chart9

where l is the minimum length for the key.

 

Chosen key specification:

* Material EN8,

* b x h x l = (20 x 12 x 55) mm (Ans.)