Mitsubishi Electric HG-KR73BG1 1/12 AC Servo Motor

Specifications

• Primary Brand: Mitsubishi Electric
• Main Function: AC servo motor
• Product Series: MELSERVO J4 series
• Sub-Range: HG-KR series
• Design:
  • Straight shaft
  • Built-in electromagnetic brake
  • Built-in absolute feedback encoder (22-bit)
  • 1/12 high-precision gearhead (flange output)
  • Low inertia / small power capacity
  • Natural cooling

Electrical Characteristics

• Supply Voltage: 200 Vac
• Rated Current: 4.8 A
• Rated Power: 750 W / 0.75 kW
• Rotational Speed:
  • 3000 rpm
  • 6000 rpm (maximum)
• Efficiency: 40% – 85%

Torque Specifications

• Nominal Torque: 2.4 Nm
• Maximum Torque: 8.4 Nm
• Moment of Inertia: 0.000246 kg·m² (2.46 kg·cm²)

Mechanical Characteristics

• Connection Type: 4-pin rectangular connector
• Mounting Mode: 100 x 100 mm flange mounting (gearbox output)
• Resolution: 22-bit (equivalent to 4,194,304 ppr)
• Degree of Protection: IP44
• Dimensions:
  • Height: 107.1 mm
  • Width: 100 mm
  • Depth: 329.3 mm

Environmental Conditions

• Operating Temperature: 0…+40 °C
• Storage Temperature: -15 °C…+70 °C
• Maximum Radial Load: 392 N
• Maximum Axial Load: 147 N

Current Specifications

• Maximum Current: 17 A

Order Code / Manufacturer SKU

• SKU: HG-KR73BG1 1/12
• Manufacturer Status: Commercialized
• Equivalent Part: HGKR73BG1112

Compliance Standards

• CE marking
• TÜV Rheinland
• cULus
• UL
• KC
• EN61800-3
• EN60034-1
• EN62061
• SILCL3
• EN50581
• UL1004-1
• UL1004-6
• CSA
• EAC

Gear and Backlash

• Gear Ratio: 1/12 (gearhead)
• Backlash: 60 arc minutes (1°) maximum

Recommended Accessories

For Standard 1-Axis Use Amplifiers:

• MR-J4-70GF
• MR-J4-70GF-RJ
• MR-J4-70B
• MR-J4-70B-RJ
• MR-J4-70A
• MR-J4-70A-RJ

For Standard 2-Axis Use Amplifiers:

• MR-J4W2-1010B

Cable Options

• Encoder Cable Options:
  • Standard and long bending life cables available in various lengths (0.3m to 60m).
• Power Supply Cable Options:
  • Available in direct connection and shielded types with standard and long bending life.
• Motor Brake Cables:
  • Available for both lead out directions with standard and long bending life.

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