You are asked to select a bearing.
The radial force on the bearing is estimated as 300 lbf. The rotation speed of the shaft is to be 500 rpm and the life to be 45 kh with a reliability of 0.95.
a) What is the C10 catalog entry (in lbf) to be sought when searching for a deep-groove bearing in a manufacturer's catalog on the basis of one million revolutions for raiting life?
Use the Weibull parameters: x0 = 0.02, (θ- x0) = 4.4, and b = 1.5. Also use an application factor of 1.25.

For the closed feedwater heater below, feedwater enters state 3 at a pressure of 2000 psia and temperature of 420 °f at a rate of ix10 ibhr. the feedwat extracted steam enters state 1 at a pressure of 1000 psia and enthalpy of 1500 btu/lbm. the extracted er leaves at an enthalpy of 528.7 btu/lbm steam leaves as a saturated liquid. (16) a) determine the mass flow rate of the extraction steam used to heat the feedwater (10) b) determine the terminal temperature difference of the closed feedwater heater

Which from the following instrument is commonly used to detect the high pitch butzing sound in bearings? [clo4] a)-digital ultrasonic meter b)-infrared camera c)-spectroscopic d)-vibrometer

Agas mixture consists of 8 kmol of h2 and 2 kmol of n2. determine the mass of each gas and the apparent gas constant of the mixture.