MITSUBISHI HC-SF52BK-S2 AC Servomotor 2000rpm 0.5kW Brake + KeyWay

Buy online your MITSUBISHI HC-SF52BK-S2 AC Servomotor 2000rpm 0.5kW reference HC-SF52BK-S2 from our US e-store Cnc-shopping USA, specialist in CNC machine-tools spare parts.

This MITSUBISHI S series AC servo motor is a 0.5 kW unit designed for CNC feed axes where stable positioning, reliable braking and accurate encoder feedback are required. It serves as a direct replacement motor for the same reference in machine-tool applications, commonly used on linear axes, indexers and handling mechanisms. Technicians source this model as a spare part or refurbished unit to restore machine uptime and keep legacy MR-J2 installations running.

The HC-SF52BK-S2 is an unventilated servo with a sealed construction and IP65 protection, suitable for coolant splash areas and chip-laden machine enclosures. The straight keyed shaft is 14 mm, and the mounting spigot is 110 mm, which helps ensure mechanical drop-in on machines already configured for this frame size. A factory holding brake supports vertical or inclined axes where load security is required during power loss or E-stop conditions.

Electrically the unit is rated at 126 V three phase with a nominal current of 3.2 A and a rated speed of 2000 rpm. Feedback is provided by the MITSUBISHI OSA17-020 encoder, which maintains compatibility with existing control parameters when replacing the same code. Power and brake are connected via the front power-brake plug, and position feedback is routed through the front-mounted encoder connector, which simplifies cable routing on machines that were originally wired for this motor.

In typical CNC architecture this model is paired with MR-J2-60A servo amplifiers. Matching the motor code, encoder reference and drive type is critical for a true drop-in field replacement without needing mechanical rework. The robust sealed body and front connector layout are well suited to compact enclosures where rear cable exits are impractical.

Reference: HC-SF52BK-S2

Manufacturer: MITSUBISHI

Product type: MITSUBISHI AC Servo Motor

Main function: 0.5 kW servo for CNC feed axes with integrated brake and factory encoder feedback

Applications: Feed axes on machining and automation equipment, rotary indexers, tool handling mechanisms, vertical axes requiring a holding brake

Key technical data: 3-phase 126 V supply, 3.2 A nominal current, 2000 rpm rated speed, unventilated sealed housing with IP65 protection, straight keyed shaft 14 mm, centering diameter 110 mm, front power-brake and encoder connectors, encoder OSA17-020, compatible with MR-J2-60A drives, built in Japan.

Maintenance teams commonly select this replacement unit to recover machines that use the S range footprint without changing couplers or brackets. Keeping one stocked spare for the line helps reduce repair turnaround and limits extended downtime when a motor fails unexpectedly. The integrated brake and the original encoder reference simplify recommissioning since control parameters typically remain aligned with the previous unit.

For planned retrofits or preventive swaps on high-use axes, this motor provides a practical path to restore smooth axis motion and stable holding torque. It is well suited for service organizations that maintain older MITSUBISHI servo packages where continuity of the mechanical interface, feedback device and drive matching are necessary to return the machine to production quickly.

Each unit is tested by skilled engineers on dedicated CNC simulators with matched MITSUBISHI servo drives to verify feedback, brake operation and thermal behavior under load. Motors are refurbished following manufacturer procedures, then packaged for industrial shipping with shaft and connector protection. Supplied with a functional warranty. Many stocked items ship directly from our Florida facility, with dispatch timing depending on availability and the item listed for shipment within 3 days.

Cnc-shopping USA supports obsolete part sourcing, repair service and potential exchange service for this family, which helps maintain legacy CNC assets and secure emergency spares. A verified tested unit on the shelf can significantly reduce unexpected machine downtime.

Frequently asked questions about HC-SF52BK-S2:

Which servo amplifier matches this motor?
This model is used with the MR-J2-60A series. Always confirm the encoder reference OSA17-020 and motor code against your drive and parameters before installation.

What are the shaft and mounting interfaces?
It uses a straight keyed shaft, 14 mm diameter, with a centering diameter of 110 mm. These dimensions support direct mechanical fit when replacing the same reference on existing machines.

Does it include a holding brake and how is it connected?
Yes, a factory Holding Brake is included. The brake supply is accessed through the front power-brake connector which shares the motor power interface on the front face.

What level of environmental protection is provided?
The housing is IP65, suitable for typical machine-tool environments with coolant splash and chips. Good sealing and the unventilated design help in enclosures where airborne debris is present.