Questions tagged [shafts]
12 questions
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Is there a way to 'switch OR engage/disengage' power between two different rotating shafts depending on a set RPM (wind speed)?
I'm a final year mechanical eng student, I'm working on designing a prototype of a 'Hybrid vertical axis wind turbine (VAWT)". This hybrid turbine consists of two types of VAWTs Savonius & Darrieus, one providing good 'starting torque' at 'low wind…
Yashwanth SriHari
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Find Bearing Loads
I have a problem where I need to determine the load of each bearing in a system comprised of three shafts. I have two questions regarding this:
There are three shafts connected with 2 couplings. If I consider the 3 shafts as one shaft the problem…
Alex
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Calculation and selection of shafts and gears
This is a solar tracker
The top weight is about 6 kg
What is the minimum torque required to rotate the upper part?
What shaft is needed?
And the diameter of the gear?
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Gear shaft with 2 different diameters
Where can i find a gear shaft around 6 inches long thats keyed and has a half inch diameter on one half and 3/4 inch diameter on other
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In what practical use case would you choose to incorporate multilayered bearings i.e. bearing within a bearing?
Considering every aspect of engineering like durability, efficiency, cost vs service-life and all the possible mechanical issues,
Is there any practical advantage in using multilayered bearings? What use cases would make it a better choice?
They…
TheNightwalker
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Shaft undergoes torsion and centrifugal stress
I use this model to get the tangential and radial stress formulas but I want to examine a system also undergoes a torsion under constant speed. I'm a little confused at this point, do I need to point out the torsional stress in this picture and…
Enes
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How to build bench with a rocking top rectangular section?
I want to build a metal bench, maybe 2m x 50cm x 40cm(W). A bit like a weights bench. The flat top rectangular section you sit or lay on should rock maybe 30 degrees to each side. What parts would be best to achieve this rocking motion. Some kind of…
Andy S
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4 answers
Why aren't tricycles use cardan shafts?
All the tricycles I saw use chains. It looks far from being efficient comparing the regular bike:
Notice how long the chain is. They have to use 2 chain idlers. The back path is inside the curved pipe which is impossible to make frictionless.
At…
Kasheftin
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How to adapt a threaded drive shaft to a keyed shaft (for use with V-belt pulleys)?
I am sure there is a very simple answer to this question, but with no formal mechanical engineering education, I don't know what it is.
I have a 2.5 HP, 3,450 RPM continuous duty electric motor with a 1/2" diameter (smooth) drive shaft with 3/8"-16…
Colgate2004
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How (or should I) to connect a D-shaft to a load, through a bearing?
I have a gear with a D-shaft that is intended to directly drive a turntable. Something relatively heavy at very low speeds and with not much torque, if it's important.
I really don't want the gear to take the weight of the load, so i want to put a…
TQQQ
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Are double universal (Cardan) joints exactly constant velocity?
Some double universal joints use a centering joint to ensure that the angle of the input and output are equal to maintain a constant velocity through the joint. From what I can tell, this centering joint consists of a ball joint that can slide…
Ryan
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Is there a special wrench used to remove this servo tachometer?
I tried using a pulley puller with moderate force to remove the tachometer but it didn’t seem so budge (although I didn’t use heat to soften potential adhesive inside).
Looking at the shaft I can see two slots similar to what I have seen in threaded…
user391339
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