Thông số kỹ thuật servo motor Allen bradley: The Allen-Bradley/Rockwell MPL-B420F-M-X225 MPL series brushless servo motor is a replacement motor compatible with different servo drives from the Allen-Bradley Kinetix series. This servo motor does not include a shaft key or seal for shaft protection, but they can be added if needed by the application. This servo motor can operate without derating at a maximum temperature of 40 degrees Celsius.