Rexroth MSK076C-0450-NN-M1-UG1-NNNN

Description

Technical Specifications

• Motor frame size: 076
• Housing length: C (long stack version)
• Rated speed: 4500 RPM (winding code 0450)
• Continuous stall torque: 13.5 Nm
• Maximum peak torque: 43.5 Nm
• Encoder: Optical single-turn Hiperface encoder, 128 signal periods
• Holding brake: Electrically released, 11 Nm holding torque (M1 code)
• Cooling method: Natural convection
• Encoder connector: 240° rotatable
• Shaft type: Keyed shaft with seal (UG1 code)
• Continuous stall current: 13.7 A
• Maximum peak current: 54.9 A
• Winding inductivity: 4700 mH
• Protection rating: IP65

Functional Features

• Excellent torque-to-inertia ratio for fast dynamic response
• Natural convection cooling for low-maintenance, fan-free operation
• IP65 environmental protection for harsh industrial conditions
• Hiperface encoder interface enables precise position and speed control
• Brushless design delivers long service life with minimal wear
• Compatible with Rexroth IndraDrive family of servo amplifiers

Application Scenarios

• CNC machine tool feed axes and rotary table drives
• Printing machinery press roller and web drive systems
• High-speed packaging machinery motion axes
• Textile manufacturing drive systems
• Industrial robotics and general factory automation

Performance Parameters

• High continuous torque output for heavy-duty operation
• Wide constant power range across operating speeds
• Maximum ambient operating temperature of 40 °C with natural cooling
• High efficiency across full load and speed range

Material & Construction

• Heavy-duty industrial metal motor housing
• High-energy rare earth permanent magnet rotor assembly
• Lifetime-lubricated precision sealed bearings
• Corrosion-resistant sealed shaft and electrical interfaces

Structural Characteristics

• Standard industrial flange mounting pattern
• Integrated brake and encoder assembly in compact package
• Sealed keyed shaft for reliable power transmission
• Rotatable electrical connector for flexible installation

Operating Principle Electronic commutation of the stator windings creates a precisely controlled rotating magnetic field. The permanent magnet rotor follows this field to produce smooth, controllable rotational torque. Closed-loop operation via encoder feedback allows the servo drive to accurately regulate motor position, velocity and torque for demanding motion profiles.

Installation Requirements

• Mount to a rigid machine frame with proper alignment to prevent excessive bearing loads
• Connect exclusively to a compatible Rexroth IndraDrive servo amplifier
• Provide adequate unobstructed ventilation around the motor housing
• Ensure proper protective grounding and cable management
• Observe shaft radial and axial load limits specified by the manufacturer

Usage Notes

• Do not exceed electrical and mechanical rating specifications
• Verify brake supply voltage compatibility before system commissioning
• Maintain seal integrity to preserve IP65 environmental protection
• Follow scheduled maintenance intervals for bearing and connector inspection
• Avoid operation beyond maximum ambient temperature without additional cooling