The 103-8573-5061 is a stepping motor from Sanyo Denki in the StepSyn Stepping Motors series. It supports unipolar and bipolar winding types with a rated current of 1–6 A/phase and holding torque from 0.28 to 19 N·m. Designed for -10 to +50 °C operation, it offers frame sizes of 50, 56, 60, 86, 106 mm and mass of 0.35–10.5 kg, ensuring adaptable performance and reliability.
Servo Supplier is not an authorized distributor. We sell new surplus and refurbished products. All warranties are with Servo Supplier and not the manufacturer.
Ambient Humidity
20% to 95% RH (non‑condensing)
Available Winding Types
Unipolar, Bipolar
CE Mark Compliance
Select models CE marked
Connector Options
Connector and lead‑wire types
Frame Sizes
50, 56, 60, 86, 106 mm square
Holding Torque
0.28 to 19 N·m
Hollow Shaft
Available for 50 mm frames
Motor Length
39.8 to 221.3 mm
Motor Mass
0.35 to 10.5 kg
Motor Type
Stepping motor
Operating Temperature
-10 to +50 °C
Rated Current
1 to 6 A/phase
Winding Inductance
0.7 to 21 mH/phase
Wiring Resistance
0.6 to 6.5 Ω/phase
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
