Pacific Scientific


Pacific Scientific

SR3642-4822-7-56HC-CU Image 1


The SR3642-4822-7-56HC-CU is a Permanent Magnet Direct Current (PMDC) motor in the SR Series by the Pacific Scientific division of Kollmorgen. Known for its lightweight and efficient operation, this motor features a compact, continuous duty design that utilizes permanent magnets instead of a wound field. The resulting linear speed/torque curve ensures smooth operation. The SR3642-4822-7-56HC-CU is equipped with a non-vented Totally Enclosed, Non-Ventilated (TENV) style enclosure and a 56C frame, ensuring its ruggedness and durability. The motor operates at a speed of 1,750 RPM and a continuous current rating of 4.7A. It works with a power rating of 0.5HP and a voltage rating of 90VDC, and offers continual torque of 18lb-in, peaking at a current of 74A. Built for optimal performance, the motor's petite, fused commutator and permanent magnets guarantee a smooth low-speed operation, while the addition of large sealed standard bearings contributes to its stability. The anti-cogging properties of the motor provide for reliable low-speed operation. The PMDC motor has a high overcurrent capacity and features polyester-impregnated armature for enhanced durability. It is designed with four equally spaced 3/8-16 UNC-2B mounting holes for easy installation. Compact in size with an overall length of 12.1 inches and a diameter of 6.5 inches, it weighs only 27lbs, making it highly portable. Able to withstand extreme working conditions, the motor is fitted with Class H insulation. Safety and quality are assured, as it is certified by UL Recognition, CE Marking, and CSA Certification. This makes it ideal for various applications in surgical robots, submarines, ships, space exploration, metrology, and drilling, among others.

SR3642-4822-7-56HC-CU by Pacific Scientific is a motor in the PMDC Series. The SR3642-4822-7-56HC-CU features a Voltage (DC) of 90 and a Current (Amps) of 4.7. This Permanent Magnet DC Motor also has a RPM of 1750, a Factory Assigned Enclosure and a H.P. of 1/2.

Revision Part #:

SR3642 4822 7 56HC CUSR36424822756HCCU
Manufacturer Pacific Scientific
Product Type Continuous Duty DC Motor
Model SR3642-4822-7-56HC-CU
Motor Speed 1750 RPM
Current Rating 4.7A
Power Rating 0.5HP
Voltage Rating 90VDC
Size 12.1 inches
Diameter 6.5 inches
Weight 27lbs

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.