Product Description:

The S22HNNA-RNNC-00 is a six-pole Neodymium magnet brushless servo motor manufactured by Pacific Scientific within the S Brushless Motors series. It supplies controlled torque and speed for industrial axes, relying on a size 21 frameless resolver for primary feedback and integrating directly with NEMA-standard mechanical interfaces. Its compact format supports use in equipment where installation space is limited but accurate servo response is still required. That combination makes it suitable for pick-and-place heads, indexing tables, and small packaging stations.

The motor delivers a continuous stall torque of 1.0 Nm, allowing it to hold that load without overheating, while its peak capability rises to 2.64 Nm for short acceleration bursts. Electrical behavior is shaped by a line-to-line inductance of 5.7 mH, which affects current rise time, and a phase resistance of 4.2 ohms, which contributes to copper loss at steady current. A torque constant of 0.3 Nm/ARMS links commanded current to shaft output, which helps the drive produce predictable torque response. The H-class winding, two-stack lamination, and six-pole layout support these operating values. The motor is built without a brake and without a shaft seal, so static holding and external sealing must be provided elsewhere. Power and signal connections are carried through 18-inch flying leads with MS connectors.

The mounting standard follows NEMA Frame, and the motor uses a NEMA 23 frame size that fits common flange patterns for compact motion axes. Rotor inertia is 0.064 ×10⁻³ kg·m², which helps balance quick response with stable motion, and the overall mass is 1.9 kg. A back-EMF constant of 0.19 VRMS/rad/sec indicates the voltage the drive must overcome as speed rises. The motor uses only the resolver for feedback, so no secondary feedback path is included. This arrangement keeps the package compact while supporting precise servo operation.