Split Coupling Design

Why do you need a rigid coupling ? It can be a source of troubles.

Try TB Woods, here is one of their designs.

Check out their brochure;

http://www.altraliterature.com/pdfs/P-1690-TBW.pdf

Best to have these shafts aligned by people who know what they're doing.

Thanks

It would be best if we had more information.

All we get is that someone is trying to machine a rigid coupler for 2 different sized shafts?

• Why are you coupling these shafts?
• Is one a motor shaft"?
• What material are the shafts?
• What is the rotational force?
• What is the power coming into the shafting?

Please answer a few questions and try to think of any other information and post that too!

An old roman dicton says : "si tacuises philosofus mansises".

It applies very well to your genial comments.

Making humor requires intelligence.

Or this...

"Si tibi videtur quod philosophus es tu insulsa male et puer"

I do not know if YOU know that semper smiling is the way a brain disease manifests itself. At your place I would consider a medical help. Your boss was right to ask in fact himself why you do not react as "usual" people.

From an other point of view I have the feeling that you overestimate your "average" behavior.

I agree that a diagnosis is strongly related to uncertainties.

But if a series of symptoms pinpoints a great probability for the presence of a disease it will be considered that the disease is present may be in a slightly different manner than the usual or classical one if only part or different symptoms are noticed.

May I remember that I did not say you are sick but that at your place I would consult a doctor.

By the way I am also a doctor.

The fact that you mention what your mother said is no legal proof she did it since its is a second hand source (you) who brings the information.

Interesting is the fact that you felt obliged to justify your smile with this argument.

It shows some hidden side of you psyche as well as your comments alalong.

In fact your smile is a mask you wear, it is not a deep sincere smile, which you use in order to win clients.

BS= Basic Stupidity ?

Thank you for the links but if you read what I wrote you will notice that I used the term UNCERTAINTY so that I do not need them, as for the shot may be you need it.

With respect to BS I wanted to be polite and not speak about excrements.

Now this the last comment since you are not worth to discuss further.

The plane on which you move is too low (intellectually speaking).

Lyn:

It's either too bad you already got 4 GAs for this, as I can only add one more, or it's too bad you didn't already get a hundred or so.

I'm sick of Legolaz' trolling. We taught our KIDS that "If it isn't fun for one, it isn't fun for any" when dealing with crowds. And THEN we punished our kids for bullying. A private opinion can and should be kept private, and dealt with in public, if at all, only discreetly "Ma'am, Sir, I don't know if you realized how much trouble he causes, but you might want to think again about putting him on that team/in charge of that project/etc...".

I suspect, Lyn, that as public as you are with your comments to people as insulting and troublous as Legolaz, that you understand and apply what I'm talking about above. Like you, I think Legolaz has boiled over the "discreet pressure" limits.

So, no matter what "smart" (quotes because truly smart requires intelligence, and I'm convinced he has none) comments he might make, spread them thin. There are no doubt many of us to whom he must be speaking.

Judging by your question, since you don't know how to design it or make it, you should just buy it.

• Products & Suppliers

Thank you all for your valuable comments;

i will like to add that the following,

we want to join vertical pump with motor with power 15 KW and 3000 rpm, the motor shaft diameter is 42 mm and pump shaft diameter is 25 mm.

i know that the D = 2.5d and L=3.5d or 1.5D

where d is shaft diameter and D is coupling outer diameter. I only want to know that is the outer diameter of coupling will be also of different diameter? or tapper

Thank you very much

Those relationships are minimums, you may exceed them. My recollection is that L=3.75d minimum. The longer the coupling the closer to the bearings and the lower the bending moments.

Much simpler to have a uniform cylinder. If you taper it, the positioning of the fixings becomes more complex, and if you step it, you create a weak spot at the shoulder.

Thank you very much, i will keep the length as suggested