R911274244 (MDD115D-N-015-N2L-130GB2)

MDD Synchronous Motors

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The R911274244 (MDD115D-N-015-N2L-130GB2) is a Bosch digital AC servo motor with frame size 115 and length code D, designed for integration with digital drive controllers. It features an IP65-rated housing with a centering diameter of 130 mm and a flange measuring 193 mm with 14 mm mounting holes. The unit provides continuous torque at standstill of 57 Nm and operates at a nominal speed of 1500 min⁻¹. The shaft is plain with a standard seal and the power connection is oriented on side B. A 60 Nm holding brake is included, operating at 24 VDC and 1.5 A. The motor supports digital servo feedback and allows natural convection or surface cooling.

Technical Specifications

Rating
IP65

Servo Feedback Type
Digital

Frame Size
115

Frame Length
D

Housing Design
Standard

Cooling Method
Natural Convection, Surface Cooling

Shaft Type
Plain

Power Connection Direction
Side B

Brake Holding Torque
60 Nm

Brake Operating Voltage
24 Volts DC

Brake Current
1.5 Amps

Brake Release Delay
150 milliseconds

Brake Clamping Delay
30 milliseconds

Brake Weight
3.5 kilograms

Nominal Speed
1500 RPM

Continuous Torque at Standstill
57 Nm

Continuous Current at Standstill
38.5 Amps

Time Constant
90 minutes

Maximum Current
173.4 Amps

Motor Mass
60 kilograms

Centering Diameter
130 millimeters

Motor Length
508 millimeters

Flange Size
193 millimeters

Mounting Hole Diameter
14 millimeters.

Frequently Asked Questions

What mechanical fit benefits come from the 130 mm centering diameter and Motor Size 115/Length D geometry?

The 130 mm pilot simplifies concentric mounting, improves shaft alignment and reduces runout-induced vibration. Its 115/D frame standardizes interchange with MDD series flanges and couplings across machine families.

How does the side-B connector orientation help cabinet wiring and EMI management on R911274244 installations?

Its side-B power/feedback orientation allows straight cable egress away from coolant spray or guideways for easing separation of motor and encoder leads. Its routing reduces coupling noise and improves service access.

What role does the shaft seal and plain-shaft interface play in contamination control and coupling selection?

The shaft seal limits ingress of dust and fluids at the front bearing for supporting long service intervals. Its plain, keyed coupling interface offers broad compatibility with backlash-controlled bellows or clamp hubs.

How does standard balancing on the rotor affect vibration and bearing loads over the speed range?

The standard balancing reduces residual unbalance that otherwise excites structure modes for improving surface finish and encoder fidelity. It minimizes bearing reaction forces at duty speed for helping maintain alignment with the 130 mm centering pilot.

How does digital servo feedback (DSF) on MDD115D-N-015-N2L-130GB2 improve loop tuning and position verification?

It provides high-resolution rotor position and speed data for enabling tighter current/velocity loops, more stable gains and quicker settling. It also stores motor parameters for streamlining startup and preventing parameter-mismatch faults during commissioning.

Common Misspellings

Internal Product Review

The Indramat’s MDD115D-N-015-N2L-130GB2 motor is built for delivering 57 Nm standstill torque. It is equipped with a 60 Nm blocking brake and possess 130-mm centering. This motor uses digital servo feedback and it is provided with side-B connection for easy wiring. Its sealed plain shaft simplify alignment at 1500 min⁻¹ and it is widely deployed across machine tools, printing, packaging, textile and robotics lines due to its standard balance.

1620 Old Apex Road
Cary, NC 27513, USA

Toll Free: 1-888-551-3082
International: 1-919-443-0207

Fax: 1-919-867-6204

[email protected]

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Indramat USA 1 Year Warranty

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North Carolina Office

Indramat USA
1620 Old Apex Road
Cary, NC 27513
USA

Phone

Toll Free: 1-888-551-3082
International: 1-919-443-0207

Indramat USA sells factory new and pre-owned surplus products and maintains channels to procure supply. Indramat USA is not affiliated with nor an authorized distributor or representative of any manufacturers, brands or products listed. Designated trademarks, brand names, and brands appearing herein are the property of their respective owners.