Table 24.1. Properties of materials commonly used for lining of friction surfaces. Material of friction surfaces Cast iron on cast iron or steel Cast iron on cast iron or steel Hardened steel on Hardened steel Bronze on cast iron or steel Pressed asbestos on cast iron or steel Powder metal on cast iron or steel Powder metal on cast iron or steel Operating Coefficient of condition friction dry In oil In oil In oil dry dry In oil 0.150.20 0.06 0.08 0.05 0.3 0.4 0.1 Maximum operating temperature (°C) 250-300 250-300 250 150 150-250 550 550 Maximum pressure (N/mm²) 0.25-0.4 0.6 0.8 0.8 0.8 0.4 0.2 - 0.3 0.3 0.8
Table 24.1. Properties of materials commonly used for lining of friction surfaces. Material of friction surfaces Cast iron on cast iron or steel Cast iron on cast iron or steel Hardened steel on Hardened steel Bronze on cast iron or steel Pressed asbestos on cast iron or steel Powder metal on cast iron or steel Powder metal on cast iron or steel Operating Coefficient of condition friction dry In oil In oil In oil dry dry In oil 0.150.20 0.06 0.08 0.05 0.3 0.4 0.1 Maximum operating temperature (°C) 250-300 250-300 250 150 150-250 550 550 Maximum pressure (N/mm²) 0.25-0.4 0.6 0.8 0.8 0.8 0.4 0.2 - 0.3 0.3 0.8
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
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Can you explain what are in this table? and also explain an ideal condition in designing a friction clutch
Transcribed Image Text:Table 24.1. Properties of materials commonly used for
lining of friction surfaces.
Material of friction surfaces
Cast iron on cast iron or steel
Cast iron on cast iron or steel
Hardened steel on Hardened steel
Bronze on cast iron or steel
Pressed asbestos on cast iron or steel
Powder metal on cast iron or steel
Powder metal on cast iron or steel
Operating
condition
dry
In oil
In oil
In oil
dry
dry
In oil
Coefficient of
friction
0.15-0.20
0.06
0.08
0.05
0.3
0.4
0.1
Maximum
operating
temperature (°C)
250-300
250 - 300
250
150
150 - 250
550
550
Maximum
pressure
(N/mm²)
0.25-0.4
0.6 0.8
0.8 -0.8
0.4
0.2 - 0.3
0.3
0.8
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