R911265283 (MDD090C-N-030-N2M-110PA2)
MDD Synchronous Motors
Technical Specifications
Protection Level
IP 65
Cooling Type
Natural convection and surface
Device Type
AC Servomotor
Coating
Black prime
Mounting Method
Flange with throughholes (Design B5)
Shaft Type
Keyway
Brake
Blocking brake with 11Nm holding torque
Sealing Ring
Included in Output Shaft
Motor Shaft Load Direction
Axial or Radial Forces
Surface Cooling Supply Voltage
1 x 115/230 VAC Blower
Bearing Side
B Side
Application
Grinding Machines
Size Code
90
Blocking Brake Time
1 Minute
Output Direction
Fixed for power connection
Feedback
Absolute Indirect Position Detection
Connection
12-pin flanged socket for feedback connection
Destination
Global Shipping Available.
Frequently Asked Questions
What practical effect does the 11.0 Nm holding (blocking) brake torque have in vertical-axis applications?
The brake ensures that under power-off conditions the rotor is held firmly against reverse motion or gravity, but you need to size for static load plus safety margin, as the brake’s friction wear over time can reduce this holding torque.
In a servo loop, what constraints does the “digital servo feedback (DSF)” impose on controller selection or wiring?
Your controller must support the same DSF interface (protocol, resolution, sampling rate) and you must use shielded twisted-pair or differential wiring to preserve signal integrity over cable length.
What trade-offs should you account for when choosing between natural convection and surface cooling modes?
Natural convection gives quieter operation and less complexity but limits continuous power; surface cooling (via blower or forced airflow) allows higher torque or longer duration under load, but adds auxiliary cost, noise, and wiring.
What should a designer check regarding radial and axial loads given the shaft seal and bearing structure?
The shaft seal suggests there is a labyrinth or lip seal design limiting contamination ingress, so high radial/axial loads should stay within the motor’s bearing load ratings to avoid seal damage and premature bearing failure.
In high-speed operation (toward 3000 rpm), what is a likely limiting factor besides torque—especially over time?
Thermal dissipation and bearing fatigue life become limiting, so ensure adequate cooling, consider derating in warmer ambient, and check the bearing lubrication regime under extended high-rpm operation.
Common Misspellings
MDD-090C-N-030-N2M-110PA2
MDD090C N 030 N2M 110PA2
MDD090C-N-030-N2M-110-PA2
MDD090CN030N2M110PA2
MDD90C-N-030-N2M-110PA2
MDDO90C-N-030-N2M-110PA2
MDDO9OC-N-O3O-N2M-11OPA2
mdd090c-n-030-n2m-110pa2
Internal Product Review
The MDD090C-N-030-N2M-110PA2 motor from Bosch Rexroth features a keyway shaft, shaft seal, and integrated multiturn absolute encoder. It delivers 10.4 Nm continuous torque at standstill and 11.0 Nm holding brake torque with a nominal speed of 3000 rpm. This motor is used in CNC machines, packaging systems, and robotics.
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Warranty
Repair
We offer a repair service for the MDD090C-N-030-N2M-110PA2.
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