MSK030B-0900-NN-M1-UG0-NNNN | Permanent Magnet Synchronous Motor

Parameter Name Parameter Value
Product Model ​MSK030B-0900-NN-M1-UG0-NNNN
Manufacturer Bosch Rexroth
Product Type Permanent Magnet Synchronous Motor
Frame Size 30 mm
Nominal Speed 900 rpm
Continuous Torque 0.9 Nm
Peak Torque 2.7 Nm (300% overload)
Power Rating 85 W
Voltage Class 230V AC (UG0 Winding)
Feedback System Resolver (M1), 1-speed
Thermal Sensor PTC Thermistor
Inertia 0.027 kg·cm²
Max Speed 6000 rpm
Protection Class IP54 (standard) / IP65 (optional seal)
Ambient Temperature 0°C to 80°C (Class F insulation)
Shaft Stainless Steel, Keyless with Center Bore
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Description

Product Overview

The ​REXROTH MSK030B-0900-NN-M1-UG0-NNNN is a high-precision synchronous servo motor engineered for compact automation systems requiring exceptional torque density and dynamic response. As part of Bosch Rexroth’s MSK series, this 30mm frame motor delivers robust performance in minimal space, making it ideal for robotics, medical devices, and precision manufacturing. The ​REXROTH MSK030B-0900-NN-M1-UG0-NNNN features an optimized magnetic circuit with samarium-cobalt magnets to generate 0.9 Nm continuous torque while achieving <0.5°C thermal drift under continuous stall conditions. Its resolver feedback (M1) provides absolute position sensing without battery backup, while UG0 winding configuration ensures compatibility with universal 230V AC drives. The motor’s keyless stainless-steel shaft and IP54-rated housing withstand particulate contamination in electronics assembly or pharmaceutical applications. With integrated temperature monitoring via PTC thermistor, the ​MSK030B-0900-NN-M1-UG0-NNNN offers plug-and-play integration with Rexroth’s IndraDrive Mi drive systems for ultra-compact motion solutions.

Technical Specifications

Parameter Name Parameter Value
Product Model ​MSK030B-0900-NN-M1-UG0-NNNN
Manufacturer Bosch Rexroth
Product Type Permanent Magnet Synchronous Motor
Frame Size 30 mm
Nominal Speed 900 rpm
Continuous Torque 0.9 Nm
Peak Torque 2.7 Nm (300% overload)
Power Rating 85 W
Voltage Class 230V AC (UG0 Winding)
Feedback System Resolver (M1), 1-speed
Thermal Sensor PTC Thermistor
Inertia 0.027 kg·cm²
Max Speed 6000 rpm
Protection Class IP54 (standard) / IP65 (optional seal)
Ambient Temperature 0°C to 80°C (Class F insulation)
Shaft Stainless Steel, Keyless with Center Bore

Key Features and Advantages:

Space-Optimized Design:
Ultra-compact dimensions (30mm diameter × 67mm length) enable direct integration into robotic joints and miniature linear actuators. Hollow shaft option (NN) simplifies cable routing.

Dynamic Control Precision:
Low cogging torque (<1.5% nominal) ensures smooth rotation for microscope stages. Auto-commissioning via IndraDrive reduces tuning time by 90%.

MSK030C-0900-NN-M1-UG0-NNNN

Thermal Resilience:
Asymmetric stator lamination minimizes hot spots at standstill. Magnet retention system prevents demagnetization at 180°C.

Cleanroom Compatibility:
Grease-free bearings (50,000 h life) and non-shedding materials meet ISO Class 5 requirements. Optional vacuum-rated version available.

Application Domains

The ​MSK030B-0900-NN-M1-UG0-NNNN excels in miniaturized systems:

  • ​Medical Robotics: Surgical tool actuation with EMI-optimized windings
  • ​Semiconductor: Die bonder Z-axis control requiring micron-level positioning
  • ​Optics Manufacturing: Lens centering spindles with low vibration signature
  • ​Laboratory Automation: Liquid handling pipette drives
  • ​Aerospace: Fuel valve actuators with 50g shock tolerance
  • ​Consumer Electronics: Micro-precision assembly of wearables

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