The MSK050B-0450-NN-S1-UG0-NNNN is an IndraDyn S series permanent-magnet synchronous servo motor manufactured by Bosch Rexroth (Indramat); its official order number is typically R911326729. Characterized by high power density and a compact design, this motor is widely used in industrial control applications requiring high dynamic response, such as automated production lines, printing equipment, machine tools, and robotic manipulators.
Model Code Detailed Analysis
• MSK: Product series code (Synchronous servo motor).
• 050: Motor frame size.
• B: Motor length (B represents medium length).
• 0450: Winding design code (determines rated/max speed and voltage characteristics).
• NN: Cooling method (natural convection cooling, no extra fan or water cooling).
• S1: Encoder type (single-turn optical encoder with Hiperface interface, 128 signal periods).
• U: Electrical connection (240° rotatable straight plug connector).
• G: Shaft design (keyed shaft with shaft sealing ring).
• 0: Holding brake (brake-less / no brake).
• NNNN: Standard design (no special modified versions).
Key Technical & Dynamic Parameters (0450-NN Winding)
• Maximum Speed: 6,000 rpm
• Maximum Torque (Peak): 9.0 Nm
• Continuous Standstill Torque (60K): 3.0 Nm
• Continuous Standstill Torque (100K): 3.4 Nm
• Maximum Current (Peak): 11.2 A
• Continuous Standstill Current (60K): 2.8 A
• Continuous Standstill Current (100K): 3.2 A
• Torque Constant (20 °C): 1.20 Nm/A
• Voltage Constant (20 °C): 73.5 V/1000 min⁻¹
• Winding Resistance (20 °C): 5.70 Ohm
• Winding Inductance: 33.6 mH
• Housing Protection Class: IP65 (Dust-tight, protected against water jets)
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