Questions tagged [coupling]

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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....
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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 ...
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Coupling suggestions required

I am looking for a Hub-Shaft coupling which has no alignment error (angular as well as parallel) and can be used for a fixed axial distance. No misalignments can be ensured by PL032X050M but in order ...
Ishan's user avatar
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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 ...
Random engineer's user avatar
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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. ...
A McKelvy's user avatar
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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 ...
Mohammad Mehdi Ebadi's user avatar
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2 answers
769 views

Effect of multiple shear pins used in combination in a coupling

Does using multiple shear pins under a limiting torque case reduce the minimum required shear pin diameter for the coupling or is the complete load distributed over the shear pins regardless of the ...
mech_engineer_12R's user avatar
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How to rescrew a pull up bar

Is there a way to fix a pull up bar when the tip screwed right off and won't screw on again? The thread hole hits the screw (detail) and just clunks there, spinning round and round without latching.
Mark Besser's user avatar
1 vote
2 answers
206 views

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....
watchmaker2000's user avatar
2 votes
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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 ...
Nil_2018's user avatar
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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 ...
The Pointer's user avatar
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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. ...
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4 votes
2 answers
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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 ...
John M.'s user avatar
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1 vote
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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: ...
somerandomusername's user avatar
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1 answer
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How does a flexible CNC coupler work?

I'm talking about this one. On what principle does it work? The only thing i can think of is that you press the shaft with the screws and then it works based on friction but I have no idea if it is ...
user1477107's user avatar
2 votes
1 answer
199 views

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 clamps/...
Curious Guy's user avatar
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2 answers
92 views

I've never seen this type of flexible coupling, can someone tell me what it's called?

Putting together a project, I've found this clutch but I've never seen this type before. It has a sort of flexible plate connecting the two parts, attached to both in two places corresponding to where ...
max's user avatar
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3 votes
2 answers
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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 ...
SSJ's user avatar
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1 vote
1 answer
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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 ...
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