MDD090C-N-040-N5L-110GA0
MDD Synchronous Motors
The Bosch Rexroth Indramat MDD090C-N-040-N5L-110GA0 motor from the MDD Synchronous Motors series is a high-precision permanent magnet motor engineered for industrial automation. It delivers a continuous torque at standstill of 10.4 Nm supported by a torque constant at 20°C of 0.43 Nm/A and features IP65 protection. Operating at a nominal speed of 4000 min⁻¹, it employs a plain shaft, digital servo feedback (DSF), and a connector interface for digital drive controllers. Thermal management is provided by a thermal time constant of 50 min (45 min with surface cooling), while a peak current of 204.0 A and winding resistance of 0.14 Ohm ensure efficient performance. Standard balancing, a 110 mm centering diameter, and standard housing simplify integration and reliability without a blocking brake.
Technical Specifications
Balancing
Standard
Holding Brake
Without blocking brake
Centering Diameter
110 mm
Housing
Standard
Motor Feedback
Digital servo feedback (DSF)
Continuous Torque at Standstill
10.4 Nm
Motor Size
090
Nominal Speed
4000 min⁻¹
Shaft Type
Plain shaft
Connection Type
Connector
Product Type
Motor for digital drive controllers
Torque Constant At 20°c
0.43 Nm/A
Windings Resistance At 20°c
0.14 Ohm
Thermal Time Constant
50 min (45 min with surface cooling)
Peak Current
204.0 A
Windings Inductance
1.6 mH
Insulation Classification
F
Frequently Asked Questions
How does the plain-shaft design of MDD090C-N-040-N5L-110GA0 motor benefit machine coupling?
The plain shaft allows direct coupling or belt/gear transfer without keyway misalignment. It reduces backlash and simplifies installation in high-precision servomotor applications.
Why is digital servo feedback (DSF) used in this motor?
The DSF provides high-resolution rotor position and speed information for closed-loop control. This enables tight synchronisation and repeatable motion in the servo drive system.
What advantage does the 0.43 Nm/A torque constant offer for MDD090C-N-040-N5L-110GA0 motor?
The higher torque constant means more torque per ampere of current, improving efficiency and reducing required current for desired torque output in system design.
How does the 50 min thermal time constant (45 min with surface cooling) impact operation of this motor?
The long thermal time constant indicates the motor can sustain elevated torque for longer before temperature rise impacts performance. With surface cooling, it extends duty cycle capabilities.
Why is the IP65 protection rating significant forthis motor?
The IP65 ensures the motor is dust-tight and protected against water jets, making it suitable for harsh industrial environments and reducing maintenance due to ingress.
Internal Product Review
The MDD090C-N-040-N5L-110GA0 servo motor by Bosch Rexroth delivers 10.4 Nm torque at standstill with a nominal speed of 4000 min⁻¹. It features a 110 mm centering diameter, digital servo feedback, and a plain shaft design. This motor is commonly used in robotics, packaging machines, and electronics manufacturing systems.
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