R911247464 (MDD090C-N-030-N2L-110PB1)

This torque defines how much load the motor can hold without motion at zero speed; for lift or vertical applications, you must ensure the holding or blocking brake can safely counteract external forces exceeding this torque. Using a safety factor (e.g. 1.5–2× of maximum expected torque) is common to avoid overload during unexpected moments.

The brake will engage when power is removed to hold the load; but its 6.5 Nm torque limits how much static load can be safely held without drift. For applications with heavier loads or steep inclines, additional mechanical locking or oversizing may be required.

At 3000 rpm continuous operation creates significant heat in rotor/stator and bearings; natural convection cooling (as standard housing) may suffice for moderate loads but higher duty cycles or ambient temperatures may require forced cooling or derating. Exceeding temperature limits without adequate cooling can drastically shorten insulation life.

DSF provides high resolution, fast feedback for precise speed/position control; however, Bosch recommends maximum feedback cable lengths (e.g. up to ~75 meters) to avoid signal degradation. Excess cable length or poor shielding increases risk of noise, latency, or oscillations in the control loop.

The shaft seal helps prevent ingress of dust, particles, and potentially liquids, thereby keeping internal parts (bearings, windings) cleaner and prolonging lifespan; standard housing is typically rated for industrial environments but may not provide full IP65 or higher protection. For harsh environments, one might need to verify IP rating or add protective covers.