BL-MC190J-20T Okuma
Wake Industrial LLC is not an authorized distributor of this product.
The Okuma BL-MC190J-20T is part of the BL Servo Motors series and delivers a rated output of 4 kW, or 5.33 horsepower. It features an absolute position encoder that is compatible with encoder families E, F, FB, and FC, with a turnover of 2048 revolutions.
Internal Product Review
The BL-MC190J-20T is an Okuma BL servo motor with a 4 kW rated output and an absolute position encoder. Support for E, F, FB, and FC encoder families makes integration especially practical in compatible motion systems. The 2048 rev encoder turnover is a strong advantage for dependable positioning performance.
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Product Description:
The BL-MC190J-20T is a brushless servo motor manufactured by Okuma for the BL Servo Motors series. Intended for CNC axes and other closed motion loops, the motor converts drive current from a matched MIV amplifier into calibrated torque while its encoder reports shaft position to the control system. In automated machine tools, it provides the closed-loop speed and positioning required for contouring, coordinated feed rates, and precise tool changes. The motor also integrates with Okuma OSP controls through the feedback protocol used by this servo motor series.
Its continuous power rating is 4 kW, allowing the shaft to deliver sustained mechanical output without exceeding thermal limits when the motor is cooled by ambient air inside the machine base. The windings are energized at a carrier frequency of 5 kHz, which affects current ripple and the acoustic noise produced by the stator. The absolute encoder can track position across 2048 revolutions, providing multi-turn position information and fine interpolation for numerical control. When a single-axis amplifier is used, the motor pairs with the MIV04-1 drive. This amplifier supplies the controlled current required for normal operation and rapid acceleration. Existing cabinet wiring and protection devices must match the electrical requirements of the BL series drive system.
For multi-axis configurations, the motor can operate with drive types such as the MIV0204-1(M), allowing two motors to share a common power bus. This drive arrangement supports acceleration current of up to 300% of the nominal value when the connected system is configured for the required overload. Supported encoder families include E, F, FB, and FC, allowing the appropriate feedback resolution or communication method to be selected without changing the motor frame. These encoder options use an absolute position encoder, so the controller retains the rotor position across multiple shaft turns. Position data are available immediately after power is applied, eliminating the need for a separate homing movement before normal axis operation begins.
