S22HSNA-RNNM-04 Pacific Scientific
Wake Industrial LLC is not an authorized distributor of this product.
- Straightforward Pricing: No Rush Fees, No Credit Card Fees
Current response time:
4 Minutes
58 Seconds
The S22HSNA-RNNM-04 is a 6-pole Neodymium magnet brushless servo motor manufactured by Pacific Scientific for the S Brushless Motors series. It features a NEMA 23 frame size, provides a continuous stall torque of 1.0 Nm, and reaches a peak torque of 2.64 Nm. The motor weighs 1.9 kg, has a line-to-line resistance of 4.2 Ohms, and uses a size 21 frameless resolver as its primary feedback device.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The S22HSNA-RNNM-04 belongs to the S Brushless Motors series manufactured by Pacific Scientific. It is a 6-pole brushless servo motor with neodymium magnets intended for closed-loop positioning or velocity control in automated machinery and robotics. Within the drive train, its resolver supplies rotor position to the controller so commutation and feedback remain synchronous during rapid reversals.
The motor can deliver a continuous stall torque of 1.0 Nm without exceeding rated temperature, while its peak output reaches 2.64 Nm for short acceleration bursts. A torque constant of 0.3 Nm/ARMS links phase current to electromagnetic force, and the line-to-line inductance of 5.7 mH shapes current rise time, influencing servo bandwidth. Phase resistance is 4.2 ohms, which contributes to copper losses and helps size power stages. Back EMF develops at a voltage constant of 0.19 VRMS/rad/sec, giving the drive a predictable voltage response during motoring or regeneration. These electromagnetic values pair with the H-type winding to support repeatable thermal behavior under the stated duty cycle.
The motor uses a NEMA 23 frame and a two-stack lamination that shortens overall length while maintaining pole coverage. Rotor inertia is only 0.064×10⁻³ kg·m², so load changes translate into quick speed shifts, and the assembly weighs 1.9 kg, allowing compact linear or belt stages to mount it without reinforcement. A size-21 frameless resolver serves as the primary feedback device, and no secondary transducer is provided. The shaft has no integral seal, and no holding brake is installed, so external measures may be required where power-off load retention or fluid ingress must be addressed. Power and resolver leads exit through a motor-mounted MS connector, providing a plug-in interface for modular machinery.
Frequently Asked Questions about S22HSNA-RNNM-04:
Q: Does the S22HSNA-RNNM-04 motor feature a holding brake?
A: This model does not include a holding brake.
Q: What is the continuous stall torque rating for the S22HSNA-RNNM-04?
A: The continuous stall torque of this motor is 1.0 Nm.
Q: What is the primary feedback device used in the S22HSNA-RNNM-04 motor?
A: The S22HSNA-RNNM-04 is equipped with a size 21 frameless resolver as its primary feedback device.
Q: What NEMA frame size does the S22HSNA-RNNM-04 use?
A: This motor follows the NEMA 23 frame size standard.
Q: What termination style does the S22HSNA-RNNM-04 motor utilize?
A: The termination style is a motor mounted MS Connector.
