MDD115D-F-015-N5M-130GB1
MDD Synchronous Motors
The MDD115D-F-015-N5M-130GB1 is a motor for digital drive controllers by Bosch Rexroth Indramat in the MDD Synchronous Motors series. It delivers a continuous torque at standstill of 57.0 Nm and includes a 45.0 Nm blocking brake. Featuring digital servo feedback (DSF), natural convection cooling with surface cooling housing, it runs at 1500 min⁻¹ with a 0.25 Ω winding resistance.
Technical Specifications
Balancing
Standard
Holding Brake
With blocking brake
Holding Brake Torque
45.0 Nm
Centering Diameter
130 mm
Motor feedback
Digital servo feedback (DSF)
Continuous Torque at Standstill
57.0 Nm
Motor Size
115
Nominal Speed
1500 min⁻¹
Shaft Seal
With shaft seal
Connection Direction
Side B
Product Type
Motor for digital drive controllers
Windings Resistance @20 °C
0.25 Ω
Thermal Time Constant (config)
60 min
Housing Cooling Option
Surface Cooling
Cooling Method
Natural Convection
Housing Design
Standard
Frequently Asked Questions
How does natural convection with a surface-cooling housing affect thermal behavior of MDD115D-F-015-N5M-130GB1?
The fin geometry and surface conduction spread losses to ambient without forced airflow for simplifying enclosures. Its thermal time constant around an hour smooths temperature swings for easing tuning of thermal models and duty-cycle calculations.
How is the 57.0 Nm continuous standstill torque on MDD115D-F-015-N5M-130GB1 leveraged in applications?
It enables holding and low-speed creep without overheating when sized correctly for supporting constant-tension unwinders and indexing tables. It’s valuable in tool spindles’ orientation stages and precision material handling.
Why include a 45.0 Nm blocking brake on MDD115D-F-015-N5M-130GB1, and how is it powered?
The holding brake prevents load back-drive at power-off and during E-stop to protect vertical axes and conveyors. Its typical variants use 24 VDC brake coils, while its torque rating aligns with the motor’s stall capability.
How does the 0.25 Ω winding resistance (20 °C) of MDD115D-F-015-N5M-130GB1 impact drive selection and cabling?
The low phase resistance increases current for a given voltage that influences drive current sizing and cable ampacity. Its drives with adequate peak/continuous current and short cable runs reduce I²R heating and voltage drop.
What’s the role of the 1500 min⁻¹ nominal speed on MDD115D-F-015-N5M-130GB1 in axis design?
The 1500 rpm base speed suits gear-reduced axes needing torque density over extreme top speed that is common in cartoners and sheet feeders. It eases inertia matching while keeping velocity ripple manageable.
Internal Product Review
The Rexroth Indramat’s MDD115D-F-015-N5M-130GB1 motor provides accurate feedback through its equipped DSF system. It is designed to provide 57 Nm of stationary torque and it possesses a 45 Nm brake. This unit uses natural-convection for cooling and its winding has 0.25 Ω of resistance. It nominal operating speed is 1500 min⁻¹ to make it applicable across packaging, printing, textiles, machine tools and robotics where deterministic positioning and sustained stall torque in required.
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