The U12M4 from Kollmorgen delivers a peak torque of 1316 oz-in and a rated speed of 3000 RPM. Part of the ServoDisc Pancake DC Motors, this DC motor outputs 284 watts continuous power and draws a rated continuous current of 8.8 Amps.
It tolerates a peak current of 85 Amps and features a cogging torque of 0 oz-in for smooth operation. The motor offers a maximum recommended speed of 6000 RPM.
Servo Supplier is not an authorized distributor. We sell new surplus and refurbished products. All warranties are with Servo Supplier and not the manufacturer.
Back Emf Constant
11.55 V/KRPM
Cogging Torque
0 oz-in
Continuous Stall Current
8.1 Amps
Continuous Stall Torque
122 oz-in (86 N-cm)
Maximum Recommended Speed
6000 RPM
Moment Of Inertia
0.0190 oz-in-sec² (1.34 kg-m²)
Peak Current
85 Amps
Peak Torque
1316 oz-in (929 N-cm)
Rated Continuous Current
8.8 Amps
Rated Continuous Torque @ 25°c
128 oz-in (91 N-cm)
Rated Continuous Torque @ 40°c
114 oz-in (81 N-cm)
Rated Power Output
284 Watts
Rated Speed
3000 RPM
Rated Terminal Voltage
43.4 Volts
Torque Constant
15.63 oz-in/Amp (11.04 N-cm/Amp)
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
