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As a side note on the rotor/armature debate. I once attended a seminar held by an individual who was once an electrical designer engineer for Brush electrical machines He held a phD and had left the industry to become a lecturer at a very highly regarded University here in the UK that...

For an application such as this I would try to obtain and use "bonding-wire". I dont want to appear to be endorsing or advertising so try a web-search. Forgive me if you are already aware of the fact but its vital to wind the coil with a wire/wires of the same diameter and with the same number...

Does the retaining sleeve have to be metalic? Why not use a "Resiglass" type self-amalgamating banding tape such as that used to retain armature and rotor windings? Its non-conductive, has zero magnetic influence and therefore shouldnt effect Kt.

Dynostarts are not to be confused with traditional "series" type starter-motors. Hope this link helps. http://www.s109316956.websitehome.co.uk/vire7/How_To/Electrical/electrical.html http://www.s109316956.websitehome.co.uk/vire7/How_To/Electrical/electrical.html

Heat around the drum at the lead end, this will melt the sealant and expand the metal, then tap and I say tap, the shaft at the non-lead end. If the drum is rubber coated it will have to be removed prior to applying the heat.

I would suggest approaching a reputable manufacturer of Mechanical-seals with a view towards fitting one of suitable design at the drive-end of your motor. John crane, Burgmann and Nash spring to mind. Asking this question in the Pump Engineering forum may also be beneficial...

Is physical size a factor? lets hope not.... .a 36-pole 55kw induction motor is going to be quite a substantial and very heavy item. As a guide here in IEC land a 55kw 8-pole requires a 315 frame.

I would go with EN24T

Nothing on the pic indicates a frame-size. I suggest you take the whole motor to a good shop. They will identify the frame size, assuming its standard and any non-standard alterations. They will also be happy to quote to supply a 1ph motor, assuming one is available......dont forget to replace...

http://www.hexagontech.co.uk/hazard_basics.htm

Skoggs? What is the concern exactly? It would appear to be a typical nameplate from a European manufacturer. They way I read it, it is a 3ph 1.5kw dual-voltage machine, 2 pole at 60hz, suitable for 220v or thereabouts if connected in star, likewise 440v if conected in delta. Current ratios are...

There is set of operating instructions that includes a wiring diagram and a section on troubleshooting for the EM650 available for free download at.... www.hondapowerequipment.com

ITT Flygt are a big player in this area. www.flygt.com

Those markings are typical of those found on Exe (increased safety) motors built to EN IEC 60079-9 Ia/In, Is the ratio of stalled current to normal current, it must not exceed 10 Te, Is the time taken in secs under a stall condition for the winding temp to rise from its intended max running...

www.winderpower.co.uk

Belt life depends on a number of factors. Age, condition, amount of loading they take, correct tensioning, enviromental conditions, condition of pulleys, motor starting methods (soft-starts or DOL etc)..... There is no simple answer to your question. The accepted practise is to monitor your...

Gearboxes intended for use in potentialy explosive enviroments do exsist, at least they do here in Europe, Google for "ATEX regulations". The main concern with gearboxes, pumps and other driven equipment is not so much the possibility of stray sparks generated in use, its the issue of surface...

Shaun? next time I ring through an order can I ask for you. DH is your rep` up here.......small world.

Sorry......Its variable torque not constant, appologies for the confusion.

Its a 2-speed motor, single winding. here in IEC land it would be described as Series star/Parallel star. The low speed power being 25% of the high speed but with equal torque over each speed. The series star point is internal and permanent, the parallel and second star point is made externally...