Product Description

The LSM75-21-602-S-OKA is a 230 Volts Brushless Servo motor from Kollmorgen. The net weight of this brushless motor is 3.1 kg (6.8 lb), and its shaft material is steel. Its continuous torque is rated at 21 in-lb (2.36 Nm), and it has a peak torque of 78 in-lb (8.8 Nm). The most significant use case of the LSM75-21-602-S-OKA is drive machinery.

The winding speed of this variant of LSM motors from Kollmorgen is 6000 rotations per minute, and its stall current is 5.5 A. In addition, the maximum current rating of the LSM75-21-602-S-OKA is 21.6 A. This motor has a KT rating of 0.42 Nm/A and a K_E voltage constant of 49 V/kRPM.  It comes with 8 poles, 75 frames, a winding resistance of 2.26 Ohm at 25^o C and a phase-to-phase winding inductance of 17.9 mH. The rotor on the LSM75-21-602-S-OKA has a moment of inertia rated at 0.000033 kgm² (0.00029 lb-in-s²). It comes designed with a Single Turn high-resolution interface and shaft keyway.

The standard motor radial load force applied midway along the shaft extension of this LSM motor is 25 kg, and this is typical of a 20,000-hour bearing fatigue life. Also, its axial load force must be maintained at zero all the time. The recommended environmental temperature when operating the LSM75-21-602-S-OKA is between 0 degrees C to 40 degrees C, and in storage, the admissible temperature is within the range of -30 degrees C and 70 degrees C. The LSM75-21-602-S-OKA is only suitable for use under the manufacturer recommended conditions. It finds application in industrial environments where corrosive moisture and abrupt temperature changes are not a concern.