Problem-based learning - Acquire enhanced problem-solving skills using critical thinking Two shaft 40 mm of diameter are connected by a flanged coupling. The flanges are fitted with 8 bolts on 140 mm bolt circle. The shafts transmit a torque of 900 N-m at 350 r.p.m. For the safe stresses mentioned below, calculate 1. diameter of bolts ; 2. thickness of flanges ; 3. key dimensions ; 4. hub length; and 5. power transmitted. Safe shear stress for shaft material= 63 MPa Safe stress for bolt material = 56 MPa Safe stress for cast iron coupling = 10 MPa Safe stress for key material = 46 MPa

Problem-based learning - Acquire enhanced problem-solving skills using critical thinking Two shaft 40 mm of diameter are connected by a flanged coupling. The flanges are fitted with 8 bolts on 140 mm bolt circle. The shafts transmit a torque of 900 N-m at 350 r.p.m. For the safe stresses mentioned below, calculate 1. diameter of bolts ; 2. thickness of flanges ; 3. key dimensions ; 4. hub length; and 5. power transmitted. Safe shear stress for shaft material= 63 MPa Safe stress for bolt material = 56 MPa Safe stress for cast iron coupling = 10 MPa Safe stress for key material = 46 MPa

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

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Concept explainers

Design of Shafts and Shaft Components

The shaft is basically defined as the machine element that rotates, is in circular cross-section, it is majorly used to transfer the power from one part of the system to another, or from a power generating machine to a power absorbing machine. The shaft is supported on bearings and is rotated with the help of a set of gears or pulleys that are used for the power transmission. Bending moment, torsion, and an axial force act upon the shaft. Designing of shaft primarily involves determining stresses at a critical point in the shaft that is arising due to loading.

Question

* Problem-based learning - Acquire enhanced problem-solving skills using critical thinking
Two shaft 40 mm of diameter are connected by a flanged coupling. The flanges are fitted with
8 bolts on 140 mm bolt circle. The shafts transmit a torque of 900 N-m at 350 r.p.m. For the safe
stresses mentioned below,
calculate 1. diameter of bolts ; 2. thickness of flanges ; 3. key dimensions ;
4. hub length;
and 5. power transmitted.
Safe shear stress for shaft material = 63 MPa
Safe stress for bolt material = 56 MPa
Safe stress for cast iron coupling = 10 MPa
Safe stress for key material = 46 MPa
A belt 100 mm wide and 10 mm thick is transmitting power at 1000 rev/min while the large pulley
rotates , The larger pulley diameter is 1 .8 times the smaller pulley which having 250 mm diameter.
Calculate the maximum power that can be transmitted. When the distance between the two pulleys
are 4 m

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