Engineering, 11.07.2019 03:30 vannahboo2022
Arolling bearing is to be selected to withstand a radial load of 8.5 kn and an axial load of 4 kn. the required life is 6000 hours. the shaft fitted into the bearing rotates at a speed of 2000 rpm and has a diameter of 50 mm. what should you enter the catalogue for dynamic load rating if there is no axial force (perform the calculation for both ball bearings and roller bearing).
Answers: 1
Another question on Engineering
Engineering, 04.07.2019 18:10
Abrake has a normal braking torque of 2.8 kip in and heat-dissipating cast-iron surfaces whose mass is 40 lbm. suppose a load is brought to rest in 8.0 s from an initial angular speed of 1600 rev/min using the normal braking torque; estimate the temperature rise of the heat dissipating surfaces.
Answers: 3
Engineering, 04.07.2019 18:10
A-mn has a cubic structure with a0 0.8931 nm and a density of 7.47 g/cm3. b-mn has a different cubic structure, with a0 0.6326 nm and a density of 7.26 g/cm3. the atomic weight of manganese is 54.938 g/mol and the atomic radius is 0.112 nm. determine the percent volume change that would occur if a-mn transforms to b-mn.
Answers: 2
Engineering, 04.07.2019 18:10
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
Answers: 2
Engineering, 04.07.2019 18:20
Air flows over a heated plate à t a velocity of 50m/s. the local skin factor coefficient at a point on a plate is 0.004. estimate the local heat transfer coefficient at this point.the following property data for air are given: density = 0.88kg/m3 , viscosity 2.286 x 10 ^-5 kgm/s , k = 0.035w/mk ,cp = 1.001kj/kgk. use colburn reynolds analogy.
Answers: 1
You know the right answer?
Arolling bearing is to be selected to withstand a radial load of 8.5 kn and an axial load of 4 kn. t...
Questions
Mathematics, 18.03.2020 16:42
Mathematics, 18.03.2020 16:43
