MDD093D-N-040-N2L-130PB1

The holding brake can secure the load when power is off, but because its torque is substantially lower than the motor’s output, it should not be relied on for abrupt emergency stops. For rapid deceleration, the drive must dissipate kinetic energy via regenerative or resistive braking.

A 130 mm centering bore implies a large-mount interface, which demands accurate alignment to avoid radial loads on bearings. Any coupling misalignment will translate into high bearing loads or vibration at high speeds.

The keyway ensures a positive mechanical engagement, which is robust for torque transmission, but at high RPMs the key seat must be balanced precisely to avoid added vibration. Also, the key must be dimensioned carefully (per DIN) to prevent fretting.

As speed increases, losses (iron, eddy-current, windage) rise, heating the motor; the manufacturer’s curves typically show decreasing torque capacity at higher speeds. Without forced cooling (fan or blower), continuous torque may need derating above nominal speed.

The rotor’s inertia should not be too small relative to load inertia, otherwise the system becomes underdamped or sluggish. A mismatch ratio (load inertia / motor inertia) of roughly 3:1 to 10:1 is often a practical guideline for responsiveness.