1. |
Since the impeller and electric motor axle are directly coupled, there is no need to adjust belt tension or exchange belts. |
2. |
The electric motors in this series use a sealed bearing so there is no need to re-grease. |
3. |
The bearing is longer lasting compared to belt driven machines. |
4. |
Drive unit can be pulled out from the back with the impeller on, so the rotor can be taken down and repaired easily without taking off the intake and discharge pipes. |