Pacific Scientific


Pacific Scientific

R21HSNA-R1-NS-VS-04 Image 1


The R21HSNA-R1-NS-VS-04 is a brushless servo-motor in the R Motor Series by Pacific Scientific. This high-performing motor is compact yet it delivers a continuous torque range of 0.3 to 1.1 Nm. Customized and lightweight, it features rare earth material used in a cutting-edge permanent magnet design. The R21HSNA-R1-NS-VS-04 has a unique Factory Assigned Shaft and distinguishing mounting type. It comes with an H type winding and operates using standard size-15 resolver transmitter mode as its primary feedback. The lead terminations feature open-standing standard connectors and it has a standard factory mount as well as a durable Viton shaft seal. Renowned for its high torque and light weight, the R21HSNA-R1-NS-VS-04 is easy to handle and can maintain strong performance at low speeds due to its anti-cog stator design. Adhering to high safety and production protocols, this reliable and powerful motor is an optimal solution for a variety of power management needs.

R21HSNA-R1-NS-VS-04 by Pacific Scientific is a Servomotor in the R Series. The R21HSNA-R1-NS-VS-04 features a Rare earth Magnet type and a Factory Assigned Shaft and mounting type. This servomotor also has a Primary feedback of Frameless resolver, transmitter type, size 15 and No secondary feedback. Additional specifications include H for Winding and a Factory assigned Sequence number.

Revision Part #:

Manufacturer Pacific Scientific
Product Type Servo-Motor
Model R21HSNA-R1-NS-VS-04
Frame Size 5 different sizes
Torque 0.3 to 1.1 Nm continuous
Motor Type Brushless servo-motor
Design Material Rare earth in permanent magnet design
Communication Size-15 resolver transmitter mode primary feedback
Lead Terminations Open-standing standard connectors
Mounting Type Standard factory mounting with Viton shaft seal.

Distribution Cache Shipping Info and Options

Shipping Carriers: Here at Distribution Cache we ship using UPS, FedEx, DHL, or TNT. In most cases we get very competitive rates based on our volume and will be happy quote shipping cost to your location upon request. We also know that many customers would prefer to ship collect on their own account numbers and welcome this option.

Shipping Blind: We recognize that many of our customers intend to re-sell the product to their end user. We respect our customer’s relationships with their clients and offer blind shipping as an option to ensure that the package arrives in the most clandestine way possible.

Shipping Process: We take pride in the way we package your order and spare no cost in making sure that it arrives safely at your facility. In the case of new parts, we are always sure to package the factory box inside another larger box for safe transit. For reconditioned parts we often use Distribution Cache customized packaging that is specially made to protect the products from the bumps and falls present during shipment.


Shipping Options:

Next Day Air Early AM - This service is the fastest overnight delivery option available. For most locations the package will be guaranteed by 8:30AM.

Next Day Air – This service guarantees delivery by 10:30AM and is the most frequently used option for overnight shipments.

Next Day Air Saver – This cost saving overnight alternative guarantees delivery by 3PM the next day.

2nd Day Air – For domestic shipments that would take 3-5 days if shipped via Ground, sometimes having the order in 2 days is a great way to go

Ground – Ground is the most inexpensive shipping option provided. Please ask if we are doing a “free domestic ground” shipping promotion on your order. We often provide free ground shipping on larger orders.


Emergency Courier – At times we can help work with a courier service to get the part to your facility during downtimes scenarios. We prefer that the customer sets up the courier but we can be there to make sure the product is handed off to the driver. Please give us a call to see if this is an option on your order.

Please Note: Products listed as “ships today” can ship same-day if an order is placed before 4PM. For larger drives and motors we ask that notification for same-day shipments be provided by 2PM at the latest. For any products listed as “ships in 3-5 days”, please give us a call to see if this can be expedited.