You have already used the coupling.

Can you give some details of the coupling like make, type etc.

I am sure, you have selected the coupling after ensuring that it is reversible. ■

Standard traction couplings are reversible.

As you appear to already have a fluid coupling you should ask the manufacturer. ■

To come back more precisely:

Constant filled couplings are bi-directional so they could be easily used on reversible belts.

It is different with fill-controlled / scoop tube couplings, they are usually - due to the scoop - only designed for one direction. But there are also couplings existing (Voith's TPKLs) which can run bi-directional.

So it depends on the size, type and design of coupling. ■

Originally Posted by A.Banerjee

Dear Sirs,

By mistake I used FLUID COUPLING in a conveyor which is reversible in nature. I am not sure about the use of fluid coupling in a reversible conveyor. It is a trction type fluid coupling.

Please furnish your comments on the above.

Regards.

A.Banerjee

Mr.Banerjee,

Request you to post the cross sectional drawing of the fluid couplings. This is an interesting topic.

We can discuss further based on your drawing.

Thanks & regards, ■

In my previous reply I took the information stated at face value i.e. he was using a simple traction coupling, not a more specialised version like a scoop control unit.

Even so, I would have thought a phone call to the manufacturer would have sorted out the question easier than posting it here ■

Fluid coupling is combination of two couplings.

Fluid coupling can be either mounted on the motor or on the driven machine, say gear box input shaft. There are advantages and disadvantages in both the ways.

End user needs to evaluate what he needs.

If Mr.Banerjee posts the drawing, we can discuss better.

Regards ■

Dear Sganesh,

Just to clarify a point you made. The coupling has two halves that makes the whole coupling. Normal practice mounts one half to the motor and the second half to the reducer.

(R)unner mounts to the (R)educer and the (I)mpeller mounts to the motor drive (I)nput.

Unless I am daffy, always possible, there is no both ways = this or that. ■

@ Lyle

Yes, common technology, we use it since approx. 30 years. But still most of the scoop couplings are one-directional.

@ designer

I fully agree, a phone call might have been the easiest way to solve it...

@ Sganesh

Standard principle is to have on one of the sides (motor or reducer) a connecting coupling to overcome misalignment.

Main question is which shaft (motor or G/B) has to take the load of the coupling.

@ nordell

If we are talking about a constant filled / traction coupling:

Yes, coupling has two halfs - but also an additional shell to make it oil tight. As the coupling has got relative bearings inside one could not mount directly each one half onto one shaft.

As above: mount to motor or to G/B shaft or, version #3 to get half load on both shafts: gimbal-mounted with a connecting coupling on each end. ■