MDD025B-N-100-N2G-040FD0

Adding a blocking brake introduces extra inertia, slightly reduces continuous torque, and lengthens the motor assembly, while shaft sealing increases environmental protection (IP rating) but may lower continuous torque or heat dissipation, thus possibly requiring derating at high ambient temperatures or speeds.

While exact numbers depend on distance from bearing and speed, MDD series data shows that radial loads increase wear rapidly at high rpm (“bearing life drops” with increased radial force) and axial loads are more limited; loads should be within specified Fradial and Faxial curves in the datasheet for reliable lifetime.

A drive capable of sinusoidal current control and supporting resolver feedback is required to exploit smooth torque, precise speed, and minimal ripple; the controller must handle speed up to 10,000 rpm and provide appropriate current limits, cooling monitoring, and thermal protection.

The 40 mm centering diameter defines the pilot surface for alignment; it ensures minimal misalignment of the shaft and housing when mounting, lowering vibration and extending bearing life especially at high rpm. It also determines the size of mating parts and mounting precision required.

A plain shaft (without special flanges or side-B extensions) allows direct mounting of pulleys or clamping hubs, which reduces backlash and improves rigidity; however, it may limit torque transfer for high radial or axial loads unless correctly supported