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Call:1-888-551-3082 International: 1-919-443-0207 sales@servosupplier.com

B-404-C-21

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The B-404-C-21 is a high-efficiency servo motor created by Kollmorgen, known for their reliable automation equipment. Despite its compact size, this motor offers a significant amount of torque due to an impressive torque-to-volume ratio. Its low inertia rotor enables rapid acceleration, making it ideal for dynamic industrial environments. The motor features electromagnetic fail-safe brakes for emergency stop and static parking with an 8Nm holding torque capability. It can deliver a 7.4 Nm continuous torque with a peak current of 18.8 A. The B-404-C-21 is designed with an IP 65-rated enclosure for protection against oily liquids, water jets, and non-corrosive materials. It can also be upgraded to IP 67 standard for underwater operation. The motor's class H insulated armature can withstand temperatures as high as 180 degrees Celsius. Lastly, the motor is compatible with front-mounted gearheads and NEMA mountings.

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Servo Supplier is not an authorized distributor. We sell new surplus and refurbished products. All warranties are with Servo Supplier and not the manufacturer.

Military Grade
Packaging

30 Day Warranty

Shipping Options

Payment Options

Technical Specifications

Manufacturer


Kollmorgen

Product Type


Servo Motor

Model


B-404-C-21

Torque Generation


Highly efficient

Torque to Volume Ratio


High

Acceleration


High (due to low rotor inertia)

Builtin Features


Electromagnetic fail-safe brakes

Holding Torque


8 Nm

Peak Current


18.8 A

Continuous Torque


7.4 Nm

Outer Enclosure Standard


IP 65

Optional Protection Standard


IP 67 (with sealing rings)

Underwater Capacities


Can sustain 5 psi pressure, can be submerged in 6 feet water depth for half an hour

Insulation


Class H insulated armature (can sustain 180 ᵒC)

Compatibility


Front mounted gearheads and NEMA mountings

Testimonials

We used Servo Supplier to refurbish old drives and buy reconditioned parts. We received great and timely service at a fair price. I recommend them to anyone who has aging equipment and can't find support from their OEMs. Highly recommend.

Bostik Inc.

WE absolutely LOVE Servo Supplier. They are quick, efficient and friendly. Honest too, which is huge in our industry. We deal with many different companies, and these guys are tops in our humble opinion. There has never been an issue with delivery, no warranties, no hidden fees, no surprises. Just what you want in the manufacturing business. Smooth, and we love smooth.

Technomech Inc

First-time customer. The ordering process was completely seamless. The part that we ordered was at our business within 2 days. Which was excellent! We had a piece of equipment down for a little more than 48 hours. Could have been a lot longer had we purchased from one of our normal suppliers.

Steve T. from NF&M International

I found these guys online and needed a somewhat obscure part quickly, and they delivered! Very quick process from the time I requested a quote to the shipping of my items. Great work Servo Supplier team!

FlexPac

Servo Supplier is my go to place for obsolete parts. They always seem to find them and the price is usually good. Any time I have questions they respond very quickly and professionally. I highly recommend them!

Middlesex General Industries

They were very quick to get the drive we needed shipped out to us. They were also very quick to respond and help with some pictures of information on the unit we ordered to ensure we received the right part.

Justin Ball from Miba

Understood our situation, and worked to help us get it solved. Very responsive, and stepped out to keep me informed until the product arrived. Exactly as described, and promised.

Brian Tomlin

This company was fantastic to work with! Very patient with us to make sure we were getting what we needed and extremely quick shipping. Would definitely purchase from them again and again!

Carla Morgan

We asked for a fast turn around and Wake was up to the task!

Darrell Chapman