Question: Problem 1 3 : A M . S shaft transmits 1 5 kW at 3 0 0 rpm . It is supported on two bearings

Problem

13

: A M

.

S shaft transmits

15

kW at

300

rpm

.

It is supported on two bearings

1.2

m apart. The shaft receives power through a

450

mm diameter pulley mounted at

300

mm to the right of right bearing. The power is given out through a

300

mm diameter gear mounted at

250

mm to the right of left bearing. The belt drive is horizontal and the gear drives with a downward tangential force. Find suitable diameter of the shaft if yield stress for shaft material is

234

MPa and factor of safety

= 2 .

Take

K_{b} = K_{t} = 1.5 .

Tension's ratio of belt is

3 .

Given data:

Problem 1 3 : A M . S shaft transmits 1 5 kW at 3

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