Product Description:

The BL-ME300J-20SN is an AC servo motor built by Okuma within the BL Servo Motors series. It is intended for numerically controlled feed axes, where it converts commanded current into proportional rotational motion for position and velocity loops. Used with compatible Okuma drive amplifiers, the motor operates as part of a closed-loop actuation chain in turning centers, milling machines, and auxiliary automation equipment. Its electrical design suits medium-power applications that require repeatable torque. It is commonly applied on machine axes that need accurate feed control during repeated production cycles.

The motor delivers 4.6 kW of continuous mechanical output at its rated operating point. A base speed of 2000 rpm supports stable axis motion during loaded feed moves, and that output level suits moderate-sized tables, tool magazines, or rotary actuators. When locked and energized, the rotor can hold 31 N·m of stall torque, which helps resist positional drift during clamping or holding routines. The stator is wound for three-phase operation, so current from a matching inverter is shared across three power conductors and helps limit uneven heating. These operating values determine the load range the motor can support during normal axis movement.

During nominal service, the stator operates at 133 Hz. Combined with an 8-pole rotor, this electrical frequency corresponds to the rated mechanical speed without slip. Control code J identifies the response tuning and resolver scaling used with compatible BL inverters. Housing dimensions, shaft extension, and feedback connector layout remain consistent across the product line, which helps keep mounting and cable routing uniform in similar machine platforms. This also supports consistent enclosure spacing when multiple axes are installed in the same machine.