A pulley of diameter D = 740 mm is mounted on a shaft that has a diameter of d = 100 mm. The pulley is prevented from rotating relative to the shaft by a shear key. The cross section of the shear key is square with dimension a = 12 mm. The length of the shear key (i.e., the dimension into the screen) is 100 mm. The allowable shear stress in the shear key is 190 MPa. If T2 = 0.35T1, what is the maximum allowable belt tension T1?

A pulley of diameter D = 740 mm is mounted on a shaft that has a diameter of d = 100 mm. The pulley is prevented from rotating relative to the shaft by a shear key. The cross section of the shear key is square with dimension a = 12 mm. The length of the shear key (i.e., the dimension into the screen) is 100 mm. The allowable shear stress in the shear key is 190 MPa. If T2 = 0.35T1, what is the maximum allowable belt tension T1?

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Laws of Equilibrium

A body is said to be in equilibrium if the system of forces acting on the body tends to keep the body at rest, in other words, there is no translation motion or net torque on the body. Under such conditions, the equilibrium conditions are to be applied to analyze the condition. The branch of mechanics that deals with this condition is known as 'statics'. Under equilibrium, there are no net forces on the body.

Question

A pulley of diameter D = 740 mm is mounted on a shaft that has a diameter of d = 100 mm. The pulley is prevented from rotating
relative to the shaft by a shear key. The cross section of the shear key is square with dimension a = 12 mm. The length of the shear key
(i.e., the dimension into the screen) is 100 mm.
The allowable shear stress in the shear key is 190 MPa. If T2 = 0.35T1, what is the maximum allowable belt tension T1?
Pulley
Shear
key
D
Shaft
T2
Answer:
i
kN

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