MDD090A-N-020-N2M-130PB1
MDD Synchronous Motors
The Bosch Rexroth Indramat MDD090A-N-020-N2M-130PB1 from the MDD Synchronous Motors series brings together precision engineering and robust design in a compact package. This Motor Size 090 frame combined with a Motor Length Code A offers a versatile footprint for diverse automation tasks. Featuring a Centering Diameter of 130 mm and a permanent-magnet rotor, the unit ensures superior torque density and dynamic response. Built-in on the shaft is a keyway per DIN 6885 sh. 1, 8-68 Edition, optimizing mechanical coupling and alignment for high-speed applications.
Engineered for demanding servo drives, this motor delivers a Nominal Speed of 2000 min⁻¹ and a Continuous Torque at Standstill of 3.7 Nm, ensuring reliable holding force under static conditions. The integrated multiturn absolute encoder provides accurate rotor position feedback, while Digital servo feedback (DSF) facilitates precise speed control and commutation. A blocking brake with 6.5 Nm holding brake torque secures loads instantly when power is removed, and standard balancing minimizes vibration for smooth operation. The standard housing and shaft seal protect internal components against dust and contaminants.
Installation and integration are streamlined with a connector connection type located at Side B, enabling rapid hookup to digital drive controllers. As a motor for digital drive controllers, it communicates seamlessly with IndraDrive systems for auto-parameterization and fault diagnostics. The standard (without side B shaft end) configuration simplifies mechanical adaptation across a variety of machine designs. Compact yet powerful, the MDD090A-N-020-N2M-130PB1 sets a benchmark for efficiency and control in modern automation environments.
Technical Specifications
Balancing
Standard
Holding Brake
With blocking brake
Holding Brake Torque
6.5 Nm
Centering Diameter
130 mm
Housing
Standard
Encoder
Integrated multiturn absolute encoder
Motor feedback
Digital servo feedback (DSF)
Continuous Torque at Standstill
3.7 Nm
Motor Length Code
A
Motor Size
090
Nominal Speed
2000 min⁻¹
Shaft Seal
With shaft seal
Shaft Type
keyway
Connection Direction
Side B
Connection Type
Connector
Product Type
Motor for digital drive controllers
Shaft End
Standard (without side B shaft end)
Frequently Asked Questions
What are the implications of the 3.7 Nm continuous (stall) torque for motion control in CNC or robotics?
It means the motor can hold or start loads up to ~3.7 Nm without rotating under static conditions; in dynamic motion, the peak torque will be higher but limited by current and drive. For applications with frequent starts or sudden load changes, ensure the drive can supply sufficient over-current and that thermal management prevents overheating.
How does the 6.5 Nm holding (blocking) brake torque affect safety and positioning when power is removed?
The brake ensures that under power-off or emergency stop conditions, the shaft remains fixed under loads up to 6.5 Nm, preventing drift or unintended motion. For installations with external torques exceeding 6.5 Nm (e.g. gravity or backlash in gear trains), external mechanical locks or higher capacity brakes might still be needed.
What is the effect of having a 130 mm centering diameter on mounting and alignment?
A larger centering diameter like 130 mm gives better mechanical rigidity and more precise alignment between motor and load, reducing shaft bending and backlash. This aids in maintaining repeatability in high-precision applications but requires matching flange or mounting structures designed for that diameter.
How does the “side B connector” and “connector type” influence cable routing and serviceability?
A side-B connector means the power/feedback cable exits from the side specified as "B," which may be important in tight cabinets or when avoiding cable bend stress. Using a connector type (instead of screw or terminal block) can speed up installation, simplify maintenance, but requires ensuring correct mating connectors and sealing if in harsh environments.
What practical benefit does the integrated multiturn absolute encoder provide over a simpler incremental encoder?
It retains absolute rotor position even after a power loss without needing a homing routine, enabling faster restart and preserving positional accuracy. For precision tasks such as robotics or packaging, this reduces downtime and improves safety, especially in systems that rely on feedback immediately after power-on.
Common Misspellings
MDD-090A-N-020-N2M-130PB1
MDD090A N 020 N2M 130PB1
MDD090A-N-020-N2M-130-PB1
MDD090AN020N2M130PB1
MDD90A-N-020-N2M-130PB1
MDDO90A-N-020-N2M-130PB1
MDDO9OA-N-O2O-N2M-13OPB1
Internal Product Review
The Bosch Rexroth Indramat MDD090A-N-020-N2M-130PB1 motor offers 3.7 Nm continuous torque and operates at a nominal speed of 2000 min⁻¹, making it suitable for precise automation tasks. Its 130 mm centering diameter, permanent-magnet rotor, and integrated digital servo feedback ensure accurate control in CNC machines, robotics, and packaging lines. The built-in keyway and 6.5 Nm blocking brake enhance safety and mechanical alignment.
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