1 FLAT AND SQUARE KEYS DESIGN PROBLEMS 521. A 2-in. shaft, of cold-drawn AISI 1137, has a pulley keyed to it. (a) Compute the length of square key and the length of flat key such that a key made of cold-drawn C1020 has the same yield strength as the shaft does in pure torsion. (b) The same as (a), except that the key material is

27/10/  · This video presents the solutions of some Mechanical Engineering Past board exam questions. The list of problems and the copy of the lecture are available in

Couplings. A coupling is used for connecting one shaft end with another shaft end for transmitting the power from one shaft to another shaft. Coupling Classifications. There are mainly two types of couplings in general. 1. Rigid coupling - Such type of couplings are used for aligned shaft.

Key is used to transmit torque between shaft and the component mounted on the shaft. Square and flat keys are most common. Other types of keys Key size Actual stresses acting on keys are difficult to determine Simplified mechanical stresses equations for shear and compression Tangential Force at shaft diameter: F= T/(D/2) = 2T/D

Machine Design Questions and Answers – Keys · 1. A force 2P is acting on the double transverse fillet weld. · 2. Maximum shear stress in transverse fillet weld of 

Keys and Coupling 489 Since the service factor is 1, therefore the maximum torque transmitted by the shaft, Tmax = 1 × 159 = 215 N-m = 215 × 10 3 N-mm We know that the torque transmitted by the shaft ( T ), 215 × 10 3 = 16 s dd 331640 ππ×τ × = × × = 7 d 3 ∴ d 3 = 215 × 10 3 / 7 = 27 × 10 3 or d = 30 say 35 mm Ans.

A shaft 30 mm. diameter is transmitting power at a maximum shear stress of 80 MPa. If a pulley is connected to the shaft by means of a key, find the dimension 

Archimedes’ Principle, Pascal’s Law and Bernoulli’s Principle Lesson—Practice Problems Worksheet Answer Key 1 Practice Problems Worksheet Answer Key Show complete solutions to the following problems and box final answers with units. 1. A sample of an unknown material weighs 300 N in air and 200 N when submerged in an alcohol solution

The. hubs of the coupling are each 111mm in diameter, 92 mm thick. and the flange webs are 19 mm thick. Six 16 mm blots in a. 165mm diameter bolt circle connect the flanges. The keyway

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Shafts Keys and Couplings MCQ Question 1 Detailed Solution Concept: So, the factor of safety using Tresca's theory (Maximum shear stress theory of failure) τ τ F. O. S = τ τ m x . (1) Where Tmax = The maximum shear stress, τ = The shear stress developed in the shaft due to maximum torque transmission τ τ = 16 T π d 3