Mitsubishi HG-KR053BJ Rotary Servo Motor Overview

The Mitsubishi HG-KR053BJ is a small capacity rotary servo motor. It belongs to the HG Series from Mitsubishi. This motor provides precise motion control for industrial machines. Users choose the HG-KR053BJ for its low inertia design. The motor responds quickly to speed and position changes. A built-in electromagnetic brake adds safety during power loss.

Technical Specifications of HG-KR053BJ

The Mitsubishi HG-KR053BJ delivers a nominal torque of 0.16 Newton-meters. The output power is 50 Watts continuous duty. Rated speed reaches up to 3,000 RPM for fast operations. The supply voltage class is 200 Volts AC. Rated current consumption is only 0.9 Amps.

The motor uses a straight shaft as the standard configuration. A 22-bit encoder provides high-resolution position feedback. This encoder ensures accurate motion control for precision tasks. The connector type is a 4-pin rectangular design. This makes wiring simple and secure.

The HG-KR053BJ has an IP65 protection rating. This rating means full dust resistance. It also withstands low-pressure water jets from any direction. The motor weight is 4.54 kg (10.00 lbs). This compact size fits tight machine spaces.

The motor has low inertia for responsive performance. It includes a built-in electromagnetic brake. This brake holds the motor shaft when power is off. There is no reduction gear attached to this model. The motor is designed for direct drive applications only.

Installation Guidelines for Mitsubishi HG-KR053BJ

Mount the HG-KR053BJ on a rigid metal surface first. Use four M4 screws to secure the motor flange. Ensure the mounting plate is flat and clean. Tighten screws to a torque of 2.0 to 2.5 Nm. Do not overtighten or damage the motor housing.

Connect the 4-pin rectangular connector for power. Use a separate shielded cable for the encoder signals. Ground the motor frame properly to avoid electrical noise. The electromagnetic brake requires 24 V DC power. Connect the brake wires to a separate relay output.

Do not strike the motor shaft during installation. Avoid pulling on the cable with more than 30 N of force. Keep the motor away from coolant or oil sprays. The IP65 rating protects against splashes only. Submersion in liquid will damage the unit.

Package Contents of HG-KR053BJ

Your shipment includes these items:

One Mitsubishi HG-KR053BJ rotary servo motor

One straight shaft key (already installed)

One 4-pin rectangular power connector kit

One encoder signal connector kit

One installation manual in English

The package does not include cables or drive amplifiers. You must order the matching servo drive separately. No mounting screws are provided in this box.

Frequently Asked Questions about HG-KR053BJ

1. What servo drive works with the HG-KR053BJ?

The Mitsubishi HG-KR053BJ works with the MR-J4 series servo amplifiers. Use the MR-J4-10A or MR-J4-20A model. Match the 200V AC class for proper operation.

2. Can I remove the brake from the HG-KR053BJ?

No, the brake is built inside the HG-KR053BJ permanently. You cannot remove it without damaging the motor. Order a non-brake version like HG-KR053B if you do not need a brake.

3. How do I test the brake on my HG-KR053BJ?

Apply 24 V DC to the brake wires first. The brake should release and let the shaft turn freely. Remove the 24 V power and the shaft should lock. Do this test with the motor powered off.

4. Is the HG-KR053BJ suitable for vertical axis applications?

Yes, the built-in brake on HG-KR053BJ holds vertical loads safely. The brake prevents the axis from falling when power is off. Check the load torque does not exceed 0.16 Nm.

5. What is the operating temperature range for HG-KR053BJ?

The Mitsubishi HG-KR053BJ operates from 0°C to +40°C. Storage temperature ranges from -15°C to +70°C. Keep humidity below 90% without condensation for best life.

Compatibility and Application Notes

The Mitsubishi HG-KR053BJ suits small robots and pick-and-place machines. It also works for conveyor belts and packaging equipment. The low inertia design benefits high-speed start-stop cycles. Always pair this motor with a compatible Mitsubishi drive. The HS code for customs is 85015200. This product contains no hazardous substances above RoHS limits.