MSM115-89-404-E2-0KA Kollmorgen
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The Kollmorgen MSM115-89-404-E2-0KA is a brushless servo motor from the MSM Brushless Servo Motors series. It has a continuous torque of 10 Nm and a peak torque of 32 Nm, with a rated speed of 4000 rpm. The motor features a 2000-line incremental encoder for feedback and weighs 11 kilograms.
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Product Description:
The MSM115-89-404-E2-0KA is a brushless servo motor built by Kollmorgen within the MSM Brushless Servo Motors series. This rotary actuator converts electrical energy into controlled mechanical motion for positioning axes, gantries, and indexing tables in automated machinery. By combining a permanent-magnet rotor with electronic commutation, the motor supports precise speed and torque regulation in closed-loop motion systems. Its design is suited to applications that need repeatable acceleration, stable running, and accurate response to changing command signals.
The motor delivers a continuous shaft load of 10 Nm, which is the torque it can sustain indefinitely without overheating. Its rated operating point is 4000 rpm, making it suitable for common screw-drive and belt-drive transmissions. For rapid moves, the amplifier may command up to 38.2 A peak, while the phase inductance of 12.0 mH helps smooth current ripple and the back-EMF constant of 123 V/KRPM indicates the generated voltage per unit speed. Position feedback comes from an incremental encoder with 2000 lines, giving the drive a stable signal for velocity control and accurate positioning during repeated cycles. This combination supports consistent starts, stops, and reversals in automated motion applications.
Short-duration overloads are accommodated by a peak torque rating of 32 Nm, allowing rapid acceleration when the load and duty cycle permit. The armature phase resistance is 2.0 ohms, and the torque constant of 1.03 Nm/A links motor current to mechanical output in a direct and easy-to-read way. A rotor inertia of 0.0016 kg-m² and a total weight of 11.0 kg support predictable motion response, while the system voltage of 460 V matches standard industrial power arrangements. The mechanical interface also includes an M6 × 1.0 mm shaft thread with 16 mm depth, which provides a secure attachment point for couplings, pulleys, or gearbox hardware. These values help the motor fit applications that require controlled motion without excessive overshoot.
