R911277446 (MDD090A-N-020-N2M-110GA1)
MDD Synchronous Motors
Technical Specifications
Motor Type
Synchronous Servo Motor
Power Supply Type
Drive Controller
Power Connection
Side A Housing
Encoder
Integrated Multiturn Absolute Encoder
Feedback Support
Digital Servo Feedback
Shaft Surface
Plain
Housing
Sealed
Protection Rating
IP65
Cooling Method
Natural Convection and Surface Cooling
Nominal Speed
2000 RPM
Motor Centering Diameter
110 mm
Brake Type
Blocking Brake
Holding Torque
6.5 Nm
Brake Release
Electrical, 24 Volts DC signal
Brake Current Draw
0.5 Amps
Brake Release Delay
60 milliseconds
Brake Clamping Delay
20 milliseconds
Brake Mass
0.5 kilograms
Servo Motor Mass
12.5 kilograms
Working Temperature Range
0 to 40 degrees Celsius.
Frequently Asked Questions
How does a plain output shaft influence coupling and backlash?
Plain shafts are designed for friction-locked clamping sets, enabling backlash-free torque transfer without keys. Indramat’s planning guidance explicitly recommends plain shafts for this reason.
What does the 110 mm centering (pilot) diameter mean for installation?
It’s the locating diameter that aligns the motor concentrically to the machine flange, controlling runout. A correct pilot fit reduces misalignment-induced bearing loads and vibration.
What environmental protection can I expect with a shaft seal?
MDD motors with shaft sealing achieve IP65—dust-tight and resistant to water jets—suitable for areas with chips, coolant spray, or washdown splash. Without the seal, protection is reduced.
What should I watch for with belt or pulley loads on the shaft?
Observe the radial-force curves versus pulley diameter/speed and keep the pulley as close to the bearing as practical to minimize load. Bearing life calculations and axial-load limits are provided in the planning manual.
What control benefits come from Digital Servo Feedback (DSF) with an absolute encoder?
DSF delivers high-resolution position data for tight loops and fast settling; adding the multiturn absolute option eliminates homing errors after outages. Both feedback versions share the same mechanical envelope.
Common Misspellings
MDD-090A-N-020-N2M-110GA1
MDD090A N 020 N2M 110GA1
MDD090A-N-020-N2M-110-GA1
MDD090AN020N2M110GA1
MDD90A-N-020-N2M-110GA1
MDDO90A-N-020-N2M-110GA1
MDDO9OA-N-O2O-N2M-11OGA1
mdd090a-n-020-n2m-110ga1
Internal Product Review
Bosch Rexroth Indramat is manufacturer of MDD090A-N-020-N2M-110GA1 that is a digital synchronous motor built for demanding automated systems. It delivers 3.7 Nm continuous torque at standstill, 6.5 Nm holding torque via its blocking brake, and features an integrated multiturn absolute encoder with DSF feedback in a sealed IP-protected housing. This motor is most used in robotics, printing, packaging, transfer or handling equipment, and machine tools wherever accurate position control and robust performance are critical.
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Repair
We offer a repair service for the MDD090A-N-020-N2M-110GA1.
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