LSM75-21-602-S-0KA

The LSM75-21-602-S-0KA is a high-performance brushless servo motor from Kollmorgen in the LSM Brushless Servo Motors series, engineered for demanding industrial automation environments. With a peak torque of 8.8 Nm and a continuous torque of 2.36 Nm, this compact unit excels at precise motion control tasks. The motor’s 8 poles arrangement ensures smooth operation up to its maximum speed of 6000 RPM, while the robust steel shaft provides mechanical integrity under dynamic loads. Featuring a Connector Option: Shaft Seal (S), it maintains internal protection and cleanliness during prolonged operation. Weighing just 3.1 kg, the LSM75-21-602-S-0KA offers an excellent power-to-weight ratio for space-constrained installations.

Performance characteristics of the LSM75-21-602-S-0KA highlight its rapid dynamic response and reliable torque delivery. The stall current (peak) of 5.5 A enables stable holding torque when stationary, and the maximum current (peak) of 21.6 Amps supports short-duration overloads. A torque constant (kt) of 0.42 Nm/A defines the direct relationship between current input and torque output, while the voltage constant (ke) of 49 V/kRPM establishes predictable back-EMF generation. Electrical parameters include winding inductance phase-to-phase of 17.9 mH and winding resistance phase-to-phase (at 25°C) of 2.26 Ohms, which combine to optimize current control and thermal behavior. The rotor’s moment of inertia of 0.000033 kg·m² (0.00029 lb·in²) minimizes overshoot during acceleration and deceleration cycles. These attributes deliver smooth, accurate positioning in high-speed indexing and servo-driven axes.

Designed for reliability and seamless integration, the LSM75-21-602-S-0KA motor incorporates a rotor length from face of 171 mm that supports precise coupling to gearboxes and feedback devices. The M8 x 1.25 mm threaded shaft hole (depth 19 mm) simplifies mounting of accessories without additional adapters. Its robust construction withstands industrial environments while maintaining repeatability and minimal backlash. This servo motor is ideally suited for applications such as CNC machining centers, pick-and-place robots, packaging lines, and assembly automation systems. When paired with Kollmorgen drives and controllers, the LSM75-21-602-S-0KA delivers integrated diagnostics, advanced tuning, and scalable network communication for comprehensive motion control solutions.