Product Description:

The 33VM62-220-6 is a low inertia permanent-magnet DC servomotor produced by Pacific Scientific within the Low Inertia PMDC Servomotors series. In automated machinery, this motor supplies rapid acceleration and precise speed regulation for tasks such as indexing tables, small pick-and-place axes, and auxiliary drive functions where quick response and limited overshoot are required. Its reduced rotor mass minimizes mechanical lag, letting motion controllers command tight position loops while keeping energy consumption modest. Used with matched drives, the unit converts direct-current supply power into controlled shaft torque so actuators move predictably in repetitive industrial cycles.

Electrical performance centers on a rated armature supply of 30 VDC, drawing 5.4 A under nominal load conditions. With a torque constant of 8 oz-in/A, the servomotor produces eight ounce-inches of torque for every ampere commanded, which supports predictable torque linearity. A built-in Tachometer delivers real-time speed feedback, allowing the control loop to correct velocity deviations without an external encoder. The solid steel shaft measures 0.3745 in in diameter, sized to accept standard couplings while limiting torsional deflection. Around the rotor, the 2.765 in housing diameter fits compact machinery frames, and an external cooling tube with a 0.750 in outside diameter can be connected to circulate coolant when duty cycles push thermal limits.

Mounting geometry follows NEMA conventions. The front face spans 4.000 in across, and a concentric pilot of 3.312 in seats the motor accurately against the machine plate. A bolt circle of 3.655 in locates the four through-holes that accept screws threaded to 8-32 UNC. The NEMA face pattern supports direct installation on legacy machine plates and helps maintain shaft alignment during high-cycle operation.