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
Define the process of Otto cycle The Otto cycle is the ideal air standard cycle for petrol and gas engine. It having of four processes. Process 1 to 2 is isentropic comp
(a) Derive the mathematical equation for work done in a polytropic process (i.e.) PV n =c) (b) A mass of gas is compressed in a quasi-static process from 80KPa, 0.1m 3 to 0.4M
Spot welding of different metals-Aluminium and its alloys High currents and shorter welding times are necessary for these materials. Special cleaning of the surface is warrante
how reversed brayton cycle works
An open belt drive connects two pulleys 1.2 m and 0.5 m diameter on parallel shafts 3.6 m apart. The belt has a mass of 1 kg/m length and the maximum tension in it is not to exce
Manufacturing DATABASE system in FMS
Q. Pressure and Temperature in Unfired pressure vessels? The design pressures and coincident maximum and minimum metal temperature, shall be determined by carefully considering
Q. Local Stresses? Local stresses in the vessel shell/head/skirt/base rings from the lifting attachments (such as lugs, trunnions, etc.), shall be determined for the imposed lo
what is the difference between intrinsic and extrinsic process?
State of CAD Data Exchange: "Are we closely there yet?" the dreaded question we hear wailing from the back of the car. "Yes, nearly there" is our cheerful response. We didn't
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