Engineering, 07.12.2020 17:00, watsonjessalynn

A 2½ × 2½-in sleeve bearing uses grade 20 lubricant. The axial-groove sump has a steady-state temperature of 110°F. The shaft journal has a diameter of 2.500 in with a unilateral tolerance of –0.001 in. The bushing bore has a diameter of 2.504 in with a unilateral tolerance of 0.001 in. The journal speed is 1120 rev/min and the radial load is 1200 lbf. Estimate (a) The magnitude and location of the minimum oil-film thickness.

(b) The eccentricity.

(c) The coefficient of friction.

(d) The power loss rate.

(e) Both the total and side oil-flow rates.

(f) The maximum oil-film pressure and its angular location.

(g) The terminating position of the oil film.

(h) The average temperature of the side flow.

(i) The oil temperature at the terminating position of the oil film

Answers: 3

Show answers

Other questions on the subject: Engineering

Engineering, 03.07.2019 14:10, BardiFan

Amass of m 1.5 kg of steam is contained in a closed rigid container. initially the pressure and temperature of the steam are: p 1.5 mpa and t 240°c (superheated state), respectively. then the temperature drops to t2= 100°c as the result of heat transfer to the surroundings. determine: a) quality of the steam at the end of the process, b) heat transfer with the surroundings. for: p1.5 mpa and t 240°c: enthalpy of superheated vapour is 2900 kj/kg, specific volume of superheated vapour is 0. 1483 m/kg, while for t 100°c: enthalpy of saturated liquid water is 419kj/kg, specific volume of saturated liquid water is 0.001043m/kg, enthalpy of saturated vapour is 2676 kj/kg, specific volume of saturated vapour is 1.672 m/kg and pressure is 0.1 mpa.

Answers: 3

continue

Engineering, 04.07.2019 18:10, heidiburgos1own6c0

Fluids at rest possess no flow energy. a)- true b)- false

Answers: 3

continue

Engineering, 04.07.2019 18:20, kendrawalraven

The characteristic roots of a dynamic system are: 1.7920 1.8160 i, -1.7920 1.8160 i, -0.4160 what is the order of this system? what are the settling time and damping ratio of the system?

Answers: 3

continue

Engineering, 04.07.2019 18:20, sanchez626

Aheavily insulated piston-cylinder device contains 0.02 m3 of steam at 300 kpa and 200 °c. 1.2 mpa. d this process. team is now compressed in a reversible manner to a pressure of etermine the entropy change and the work done on the steam during this process

Answers: 1

continue

Do you know the correct answer?

A 2½ × 2½-in sleeve bearing uses grade 20 lubricant. The axial-groove sump has a steady-state temper...