SEW-Eurodrive is now able to supply an industrial gear (IG) unit that offers more efficiency for mixing and agitating applications with its MC range of extended bearing distance (EBD) industrial gear units.
The company recently supplied the local sewage works in Nelspruit with one of its 55 kW EBD aerator drives. “The reason that the client chose us was our location, stockholding and the excellent service. We were able to offer the backup that the customer needed and were also able to deliver within the short specified time,” explains Jonathan McKey, SEW-Eurodrive sales manager in the region.
Nelspruit is the SEW-Eurodrive South Africa hub for the assembly of IG units. The local branch has been set up with the necessary tooling and space to accommodate the assembly and stock holding of these larger units. “Our technical people have received training in China, Finland and Germany on the assembly and repair of these units,” adds McKey.
Advantages of the EBD concept
In process plants, large axial and radial forces occur at the agitator shaft during the agitating processes. Traditional designs solve this problem with separate, external bearings that take on the function of the agitator shaft bearings, a solution that very often proves cost intensive.
SEW-Eurodrive’s new EBD concept extends the bearing span across the low speed shaft and offers stronger bearings within the gear unit itself, which means that in many cases separate bearings are no longer required in the agitator or an over sizing of the gear unit can be avoided.
These high torque MC IG units can be used for the operation of mixers, agitators and surface aerators. The powerful and stiff bearings are also suitable for absorbing forces that occur in drives for wet, dry and hybrid cooling towers. The concept is supplemented by an optional drywell seal, which prevents oil leakage at the output shaft.
This offers a powerful solution that has output bearings with high load bearing capacity and a reinforced output shaft. Different output flange dimensions can be adapted to the gear unit using clear interfaces. One gear unit can be used for both foot and flange mounting.
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