R911256745 (MDD115D-N-015-N2L-180GA0)
MDD Synchronous Motors
Technical Specifications
Maximum Theoretical Torque
177.3 Nm
Maximum Current
173.4 A
Thermal Time Constant
90 minutes
Weight
60 kg
Moment of Inertia
271 x 10-4 kgm2
Protection Grade
IP 65
Constant Torque
57 Nm
Constant Current
38.5 A
Power Connector Position
A-side
Output Shaft
Plain with a sealing ring
Operating Temperature
0 to +45 degrees Celsius
Balancing Class
N
Centering Diameter
180 mm
Winding Resistance
0.25 ohms
Inductance
4.2 mH
Torque Constant
1.48 Nm/A
Frequently Asked Questions
What distinguishes the MDD115D-N-015-N2L-180GA0’s feedback system, and how does it improve servo tuning?
It employs digital servo feedback (DSF) for fine position/speed evaluation for enabling precise loop gains and fast settling without oscillation. Its DSF also supports absolute variants in the MDD family for startup alignment.
How does the 1500 min⁻¹ nominal speed of MDD115D-N-015-N2L-180GA0 map to common axis tasks?
This base speed fits torque-biased applications like indexing tables, feed drives or winders where controlled velocity is prioritized over extreme rpm. It matches Rexroth digital drives for predictable speed loops and thermal loading.
Why does the plain shaft with shaft seal matter for lifecycle and contamination control on MDD115D-N-015-N2L-180GA0?
The sealed plain shaft limits ingress of coolants, dust and paper lint for protecting bearings and encoder structures. It directly reduces lubricant washout and extends maintenance intervals in packaging or printing cells.
What mounting compatibility does the 180 mm centering diameter provide, and how does size code 115 help retrofits?
The 180 mm pilot aligns to standardized MDD mechanical frames for easing swaps on legacy jigs and plates. Size-115 geometry preserves shaft height/bolt circle to minimize re-machining during modernization.
How does 57 Nm continuous torque at standstill on MDD115D-N-015-N2L-180GA0 support precision indexing?
It enables tight clamp-and-hold without drift during dwell for keeping registration accurate on cut-to-length or pick-and-place. It also broadens low-speed operating range before field-weakening.
Common Misspellings
MDD115DN015N2L180GA0
MDD115D N 015 N2L 180GA0
mdd115d-n-015-n2l-180ga0
Internal Product Review
The Bosch Rexroth Indramat’s MDD115D-N-015-N2L-180GA0 synchronous motor comes with a 180 mm centering diameter and plain-shaft design that has an imposed sealing ring as well. It lacks holding brake and possess an integrates DSF feedback system. At 1500 min⁻¹ with 57 Nm standstill torque, it suits packaging, printing, textile and machine-tool axes using digital drive controllers.
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