Two shafts made of plain carbon steel are connected by a rigid protective type flange coupling. The shafts are running at 500 r.p.m. and transmit 25 kW power. Design the coupling completely for overload capacity 25 percent in excess of mean transmitted torque capacity. Assume the following permissible stresses for the coupling components : Shaft — Permissible tensile stress = 60 MPq; Permissible shear stress = 35 MPa Keys — Rectangular formed end sunk key having permissible compressive strength = 60 MPa Bolts — Six numbers made of steel having permissible shear stress = 28 MPa Flanges — Cast iron having permissible shear stress =12 MDA~
Two shafts made of plain carbon steel are connected by a rigid protective type flange coupling. The shafts are running at 500 r.p.m. and transmit 25 kW power. Design the coupling completely for overload capacity 25 percent in excess of mean transmitted torque capacity. Assume the following permissible stresses for the coupling components : Shaft — Permissible tensile stress = 60 MPq; Permissible shear stress = 35 MPa Keys — Rectangular formed end sunk key having permissible compressive strength = 60 MPa Bolts — Six numbers made of steel having permissible shear stress = 28 MPa Flanges — Cast iron having permissible shear stress =12 MDA~
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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-Two shafts made of plain carbon steel are connected by a rigid protective type flange coupling. The shafts are running at 500 r.p.m. and transmit 25 kW power. Design the coupling completely for overload capacity 25 percent in excess of mean transmitted torque capacity. Assume the following permissible stresses for the coupling components : Shaft — Permissible tensile stress = 60 MPq; Permissible shear stress = 35 MPa Keys — Rectangular formed end sunk key having permissible compressive strength = 60 MPa Bolts — Six numbers made of steel having permissible shear stress = 28 MPa Flanges — Cast iron having permissible shear stress =12 MDA~
Transcribed Image Text:-Two shafts made of plain
carbon steel are connected
by a rigid protective type
flange coupling. The shafts
are running at 500 r.p.m. and
transmit 25 kW power.
Design the coupling
completely for overload
capacity 25 percent in
excess of mean transmitted
torque capacity.
Assume the following
permissible stresses for the
coupling components :
Shaft – Permissible tensile
stress
60 MPa; Permissible
shear stress = 35 MPa
Keys – Rectangular formed
end sunk key having
permissible compressive
strength = 60 MPa
Bolts – Six numbers made
of steel having permissible
shear stress = 28 MPa
Flanges – Cast iron having
permissible shear stress = 12
AMDa
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