Motor Identification

I'll think you'll find that B56 is the frame, see here

Not too sure about this?

A 56 frame means the shaft centre is 56mm above the mounting feet (if fitted). This is going to mean a body diameter of 100mm or threabouts.

B5 is often used to represent flange mounting and B3 is a foot mount, a motor with both is B35 Applying this to B56 now confuses me as I have not come across a meaning for B6!

If this motor is around 1HP then I would expect a 71 or 80 frame size mounting holes on a B5 frame 71 motor are on a 130mm PCD and 80 frame on a 165 PCD which does not line up with your 4" square (=145 mm PCD)

A good site for getting the key dimensions of motors and pretty good pricing is here

Bob

Not sure myself but I have seen that B56 designation before. The 4" square may not marry up quite right as I got 3.960" between centres, although the site I linked wasn't that clear on the PCD dimension, but that's quite close if you've just put a rule against it for a quick gander. I expect more measurements of the poor molten remains may show up the details. It can't be too bad as the name plate must still be legible.

Interesting David!

Your link (now working for me whereas it was not earlier) is obviously using a different frame numbering system to the one I know that directly relates to the height of the shaft above the mounting plane.

Just when I thought I was beginning to understand .........

Bob

B56 is an imperial framed motor.

dimensions.

threabouts.

The motors look a bit like a Salvador Dahli painting, slumped short and squat with the through bolts sticking up.In reality it's probably not that critical. This motor drives a chain through 2:1 sprocket set that rotates four 1.5" diameter 'lead screws' that raise and lower the cross beam of the press. As the coupling to the sprockets is fried I'm going to have to re-engineer that, and if I have to re-drill the mounting plate isn't the end of the world.

Next issue is the hydraulic pump. Motor driven (again melted!!) I had to air chisel the remains to get at mounting bolts - yet to get the pump itself out of the reservoir to see what it was. Not much chance of it being any good..

What sort of hydraulic pump generates 700 bar /10,000 psi? I understood that gear pumps run out of steam at about 200 bar

AWEM

Just for the sake of being a pedant, I make 440V, 2A 3ph near enough

Richard

A swash plate pump or radial piston pump(not used much these days) will do that; positive displacement is the name of the game. I see Enerpac or similar powerpacks on ebay occasionally. A more off the wall source would be a ship breakers, but we don't have many left. Woods of Crediton might have something.