Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Bearing Bronzes
This is the copper-tin alloys along with small additions of another constitution. Beneath conditions of heavy load and conditions of severe service, bronzes are mostly of great advantages. Therefore, they possess a high resistance to impact loading and, are mostly employed in locomotive and rolling mills bearings. Though, they get heated up fast as compared to another type of bearing materials, as like: babbitts. Bronze lined bearings are easily eliminated and finished bushings are usually available in stocks. Some of the bronzes that are widely employed are described in Table no.22.
Table no.22: Bearing Bronzes
Bronze and
SAE Number
Composition (% )
Mechanical Properties
Application
UTS N/mm2
YS N/mm2
Elongation
%
Leaded gun metal, 63
Cu 86-89, Sn 9-11, Pb 1-2.5, P 0.25
max. impurities 0.5 max.
200
80
10
Bushing
Phosphor bronze, 64
Cu 78.5-81.5, Sn 9-11, Pb 0.05-0.25, Zn 0.75
max. impurities 0.25 max.
167
8
Heavy loads
Bronze backing for lined bearings 66
Cu 83-86, Sn 4.5-6.0, Pb 8-10, Zn 2.0, impurities 0.25 max.
Bronze backed bearings
Semi-plastic bronze, 67
Cu, 76.5-99.5, Sn 5-7,
Pb 14.5-17.5, Zn 4.0 max., Sb 0.4 max., Fe 0.4 max., impurities 10.0 max.
133
-
Soft and good antifriction properties
1
Construct a retrograde Vernier scale: During construct a retrograde Vernier to a scale of 1/5, signify inches and 10 th , and 30 inches and long sufficient to read to mark dis
normal stress in beam
Compute the force in the rod: A rod ABC rotating at 20 rpm about a vertical axis through A, supports a ball of mass 10 kg at its lower end. It is fixed in position by the rod
Q. Corrosion resistance of the nickel-based alloys? The corrosion resistance of the nickel-based alloys can also be significantly affected by other variables such as velocity a
Flow through pipes in series and parallel
Draw complete shear and moment diagrams for a 3 m long cantilever beam having a uniform distributed load of 2 kN/m along its length.
Difference between direct and shear stress
Method of resolution to find out the resultant force: Some time there is doubt for finding the angle of resultant (θ), the value of the angle θ will be very depending upon the
velocity of belt: velocity of belt passing over the driver pulley will decrease Now with this velocity belt pass over driven pulley, Now Velocity of Driven = Velocity
Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!
whatsapp: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd