RU-STEEL is specialized in designing and manufacturing transmission couplings. An experience matured at the end of the fifties al-lowed us to realize absolutely competitive products and to assert successfully our presence both on the inland and foreign market.
Since the first coupling produced, RU-STEEL's philosophy has been designing and manufacturing a complete range of transmission couplings (from Nm 3 to 300.000, including "elastic couplings", "self-lubricating coupling", "flexible couplings", "super elastic coupling") in order to meet all customer's requests; This philosophy has become, for our engineering, a steady engagement in perfectioning our products in order to guarantee the highest functionality, life and inexpensiveness to the user.
By means of the steady production improvement, of a careful marketing policy and of a more and more qualified distribution and service network, at RU-STEEL we are close to the requirements of our customers, who reward us daily with their faithfulness. RU-STEEL is therefore pride to present you our new catalogue about "Flexible all steel couplings".
RU-STEEL also offers ATEX certification - necessary for refineries & chemical plants. These couplings are currently being used in major Indian refineries.
The RU-STEEL elastic coupling is composed with two equal gear rings, whose teeth engage themselves respectively with interposition of high resistance resilient blocks, which work only by compression. The gear rings are perfectly equal and symmetrical in drive and permit a not flexible coupling in case rubber pads are unserviceable, not for a long period of time, without damages for the coupled machines.
The use of RU-STEEL coupling assures the relief of incidental little misalignments between the connected shafts, which may depend, for instance, on unavoidable mistakes in the assembly, on thermal expansion, on elasticity of supporting structures, on ground settling, or on other causes. Further more the said coupling cushions the transmission of axial thrusts between the two connected shafts, because of its structural characteristics.
RU-STEEL couplings with floating teeth type "ZEUS" are designed and manufactured to join two rotating shafts by transmitting a torque in a torsionaly rigid way. They are totally manufactured in carbon steel "C 45", they are composed by some hubs, produced with a "SPHERIC" toothing and by flanged coupling sleeves with a "CYLINDRICAL" toothing. This kind of manufacturing allows Axial Slippages, Misalignments, compensating largely for inevitable mistakes of alignment in power transmissions. The torque is transmitted by the mutual engagement of the toothings junction of the flanges through some gauged bolts. A correct assembly, with alignments within the tolerances, and a regular maintenance allow the "ZEUS" coupling to have a long life, keeping a high quality trend, it is recommended to refer to the page 10 of the catalogue. By request, it is possible to execute a thermal treatment for hardening the working toothings, by increasing their resistance under "critical" working conditions.
The coupling of the "GD" set has got the main characteristic in the gears made by elements easily changeable in very strong resistance and self-lubricating material, while it intensifies the softness of the transmission, also avoids a further lubrication. The mentioned elements intersect each other into bores made half on the outer annulus gear and half on the inner hub. In that way the two edges, the inside of the annulus gear and the outside of the hub, can be compared to cogged surfaces and the driving elements, placed between the two constant-mesh gears, work as solid lubricating.
The driving elements (self-lubricating insert) are made in particular materials and are able to support heavy loads of work; their specific structure allows the coupling to support slips under torque making it TELESCOPIC. Furthermore the gear coupling of the "GD" set owns the capacity of working in both directions of rotation and with reversible of rotation and allows vertical and blind assembly.