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Questions tagged [coupling]

19 questions
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How to connect a motor shaft to a plate

I'm trying to drive an aluminium plate using a motor via a 20mm-wide 2mm-thick stainless steel tube. The tube is driven by a 6mm motor shaft via a pulley and the torque will be around 5Nm at most. Is it a good idea to attach the plate to the tube…
John M.
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Coupling of load cell with a plunger

We are using a load cell as shown below, the data sheet for which can be found on this link. The load cell needs to coupled with a plunger as shown below. The plunger is supposed to measure the axial force acting on it. Initially, we had just…
SSJ
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Evaluating bonding integrity of piezoceramic transducer

Currently I am working on a Structural Health Monitoring system utilizing piezoceramic transducers. The proof of concepts have worked very well. But we are in the process of working small scale manufacturing. We have observed inconsistency in the…
Nil_2018
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Motor shaft mounting with clamps and bushings

If I'm in the wrong section of stack exchange, please help me go to the right place. I am trying to find out if this combination of motor shaft and clamps will work out. I found these…
Curious Guy
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Sealing of non-circular cross sections

I have to mate two sections of something that could be reasonably approximated by a tube, though the material is stainless steel, and the cross-section is very non-circular, so I cannot use an o-ring. The walls are thin and the exterior must remain…
A McKelvy
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What joint can I use for two thin parallel shafts to transmit both rotational and and linear power (in the axis of the shaft)?

I am here regarding a personal project but I am not a mech engineer. The shaft is a watch stem that is displaced from the crown stem. The two shafts are positioned like in the photo below but are 0.9mm in diameter and about 2mm to 4mm apart (it can…
watchmaker2000
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What does "coupling effects" mean in the context of optical systems?

What does it mean to say that there are "coupling effects" between some elements of an optical system? I've searched through the literature, but I cannot find a general explanation of what this means – every mention of it assumes that the reader…
The Pointer
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What is the purpose of the steel plate in this coupler?

I've found a shaft coupler that has a steel plate in between, but it's not clear what its function is: If it is to add strength to the coupler, isn't the coupler as strong as the weakest link, i.e. the aluminium ends? Does anyone know what the…
John M.
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Axis connection types

Complete hobbyist here. I have two questions I have a problem figuring out. I have hard time finding information about axis and types of connections they have. For example take this worm gear reducer: It has axis connection with small extrusion on…
somerandomusername
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I need help identifying a special kind of coupling

I found this switchable coupling in Rollof/Matek machine elements, i have never seen this kind of coupling before. According to the dutch edition its name is: Tweevlakskoppeling Which literally means Two-surface coupling After some research on…
user14407
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How to secure a shaft to hollow-shafted motors?

I plan to use a motor similar to this to drive a hollow shaft. If you click the image, the motor has a hollow shaft, so my hollow shaft can slide through. But I have two problems with this I'm unsure how to 'lock' my shaft to the female shaft of…
Kevin
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Question about Shaft Coupling Size

I'm trying to extend the crank handle on my Ryobi drill press to be able to accomodate a drill press table, similar to https://www.youtube.com/watch?v=ZezGyogW1qk The worm gear is: https://www.powertoolreplacementparts.com/ryobi-089140314084-worm.…
user4979733
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Is this a feasible way to straight-couple to a gear?

I have some car window motors that I would like to directly couple to some roller-type shades in my house. I would like to introduce a direct coupling mechanism rather than use some sort of chain. In a car these motors are used in a rack-and-pinion…
user391339
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Which tool to measure shaft alignment for small diameter shafts (d=10mm)?

I have seen many tools and methods to check shaft alignment, but they are mostly used for big shaft. I wonder if there are small tools for small diameter shaft with limited space to install? Can you suggest some tools, brands and sources that I can…
Random engineer
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Why the model with rebar layer shows one sided plastic strain in Abaqus?

Using the damaged plasticity model, I modeled a concrete coupled shear wall in Abaqus, once with discrete rebar and once with rebar layers for the slab. I used the general static solver to run the push-over analysis. Although deformation happens on…
Mohammad Mehdi Ebadi
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