Engineering, 15.12.2021 14:00, TVASALLO31
A shaft shown in the figure is proposed as a preliminary design for the application of gear
reduction process The effective centers of the gears for force transmission are shown. The
dimensions for the bearing surfaces (indicated with cross markings) have been estimated. The
shaft rotates at 900 rev/min, and the desired bearing life is 12kh with a 98 percent reliability in
each bearing, assuming distribution data from manufacturer 2. Use an application factor of 1.2.
(a) Obtain a Basic Load Rating for a ball bearing at the right end.
(b) Use an online bearing catalog to find a specific bearing that satisfies the needed Basic Load
Rating and the geometry requirements. If necessary, indicate appropriate adjustments to the
dimensions of the bearing surface.
Answers: 2
Engineering, 04.07.2019 18:10, danksans7011
The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false
Answers: 1
Engineering, 04.07.2019 18:10, settasav9641
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, xboxdude06
Slip occurs via two partial dislocations because of (a) the shorter path of the partial dislocation lines; (b) the lower energy state through partial dislocations; (c) the charge balance.
Answers: 1
A shaft shown in the figure is proposed as a preliminary design for the application of gear
reduc...
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