Product Description:

The BL-H100E-20T is an AC servo motor produced by Okuma within the BL Servo Motors series. Designed for closed-loop positioning in lathes, machining centers, and other automated equipment, the unit converts electrical commands from an Okuma drive into proportional mechanical rotation. By linking directly to the machine axis, it supplies repeatable torque and speed so that cutting paths, tool changes, and spindle orientations stay synchronized with the numerical control program.

Continuous duty operation is supported, as indicated by its Continuous rating, meaning the motor can meet thermal limits at steady load without scheduled cooling pauses. The motor delivers 2 kW of mechanical output when energized at its rated conditions. At a commanded speed of 2000 rpm, that power level corresponds to a torque plateau suitable for moderate-inertia loads common in medium-frame machines. Electrical supply requirements center on a bus voltage of 152 V, which matches Okuma inverters that regulate armature excitation and regeneration. Under that voltage, the phase windings draw a nominal current of 8.4 A, which is used to size cables and set overload trip thresholds.

Dynamic characteristics are set by the internal six-pole rotor; the 6-pole layout sets the electrical frequency needed to reach mechanical synchronous speed and helps improve low-speed torque smoothness. Angular feedback is provided by an OSP encoder that streams position data to the CNC controller for precise interpolation. During steady motion, the motor supplies a continuous torque of 98 kg-cm, while momentary stalls can be absorbed up to 108 kg-cm without demagnetization. Those torque margins support fast acceleration and stable holding when clamps engage or tool indexing occurs, helping the axis respond accurately to each programmed move.