Product Description:

The MSM115-62-404-E2-0KA is a brushless servo motor manufactured by Kollmorgen for the MSM Brushless Servo Motors series. It serves as a rotary actuator that pairs with a matched amplifier to provide precise position, velocity, and torque regulation in automated machinery. Operating from a 460 V bus, the motor converts electrical energy into mechanical rotation for tasks such as pick-and-place heads, packaging stations, and indexing tables.

The motor can sustain a continuous torque of 7 Nm, allowing it to drive loads continuously without forced cooling. Its rated speed reaches 4000 rpm, providing ample headroom for high-throughput motion profiles. During rapid acceleration, the drive may supply up to 26.9 A peak; current beyond this limit is blocked to protect the windings. A rotor inertia of only 0.0010 kg·m² gives the axis quick responsiveness, reducing dwell times between moves. Current rise is shaped by a phase inductance of 16.8 mH, which helps the amplifier maintain stable current loops at higher pulse-width modulation frequencies.

The servo withstands momentary overloads with a peak torque of 22 Nm, allowing machinery to overcome transient friction or settle heavy loads. With a torque constant of 0.99 Nm/A, commanded current translates predictably into output torque, simplifying gain calculations. Back electromotive force follows a voltage constant of 120 V/KRPM, keeping generated voltages within inverter ratings at top speed. The assembly weighs 8.5 kg and contains six poles for smooth commutation. Its winding resistance of 3.4 Ω affects copper losses during continuous operation. Mechanical coupling uses an ST-60 steel shaft with an M6 × 1.0 mm thread cut 16 mm deep for extractor bolts. A stall current ceiling of 7.8 A peak allows the motor to hold static loads without exceeding thermal limits.