R911261125 (MDD090C-N-030-N2M-110GR1)

Given the thermal class 155 insulation, how does that limit ambient temperature or duty cycle?

Class 155 (class F) allows winding temperatures up to ~155 °C, so your insulation margin supports moderate overloads or elevated ambient conditions. Still, continuous operation in extremely high ambient (> 45–55 °C) may require derating or better cooling.

How does having an integrated multiturn absolute encoder improve motion reliability?

The absolute encoder ensures position feedback is retained across power cycles, so you don’t need homing routines after every reboot. It also allows faster start-up and better recovery in case of power interruptions.

What are the trade-offs when using a plain shaft (vs. keyed or shrink-disc)?

A plain shaft limits how you connect couplings or pulleys (you may need clamp couplings or pressed fit), but you avoid stress concentrations that can come with keyways. For high torque or shock loads, you might prefer a keyed or shrunk connection to avoid slippage.

In a high-speed application reaching 3000 min⁻¹, what factors limit performance?

Rotor dynamics (inertia), bearing life, and heating are limiting factors: high speed increases centrifugal stresses and bearing wear, so cooling and balancing become critical. Also, torque falls off due to voltage and back-EMF constraints at high RPM.

How should one size the drive amplifier when driving this motor?

Select a drive capable of supplying peak currents above the motor’s demanded transient current and matching the voltage rating, ensuring that the drive’s voltage headroom covers back-EMF at full speed. The drive should also support absolute encoder interfaces and braking current paths.

MDD-090C-N-030-N2M-110GR1

MDD090C N 030 N2M 110GR1

MDD090C-N-030-N2M-110-GR1

MDD090CN030N2M110GR1

MDD90C-N-030-N2M-110GR1

MDDO90C-N-030-N2M-110GR1

MDDO9OC-N-O3O-N2M-11OGR1

mdd090c-n-030-n2m-110gr1

The MDD090C-N-030-N2M-110GR1 motor by Bosch Rexroth features a 3000 min⁻¹ nominal speed, plain shaft, and 6.5 Nm holding brake torque. It includes an integrated multiturn absolute encoder and supports horizontal or vertical installation. This motor is ideal for use in packaging machines, robotics, and CNC automation systems.