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
At a point in a beam, the bending stress is 50 MPa shear stress and tensile is 20 MPa. Calculate :- (i) The principal stress and maximum shear stress. (ii) The tensile stress
The square cross sections A and B are shown in Fig Q1, the dimensions b = 80 mm, thickness t = 10 mm. A shear force V is applied at the cross section, calculate the maximum she
Condition for Carnot theorem - thermodynamics: 1 . If T 1 = T 2 ; No work, = 0 2 . Higher the temperature difference, greater the efficiency. 3. For the same
How is angle of dispersion used in footing? Angle of Dispersion Indian Standards (IS) has specified relation for determining the angle, of dispersion. According to IS the an
Tungsten Inclusions Tungsten inclusion is a discontinuity found only in TIG welding. Particles of tungsten from the electrode can be embedded in a weld when improper welding proc
K = mE\3 (m-2)
Special Tool: Use special tools wherever applicable. Special tools are designed to dismantle or assemble a specific part or assemblies without causing damage to them. Cleaning
what is effectively of longitudinal joint
Discover the maximum safe air pressure: A cylindrical compressed air drum is equal to 2 m in diameter along plates 12.5 mm thick. The efficiencies of the longitudinal (η l ) a
Q. Can you explain the Mobile bed model? Mobile bed models can again be either geometrically similar or vertically exaggerated. Models of the former type permit study of proble
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