Need Help START A PROJECT SHOP LEARN PRODUCTS BLOG TUTORIALS HOME / P R O D U C T C A T E G O R I E S New Products FORUM VIDEOS 0 DATA WISH LISTS DISTRIBUTORS SUPPORT Stepper Motor with Cable SparkFun Originals ROB-09238 2016 Gift Guide 12 Sale Description: This is a simple, but very powerful stepper motor with a 4-wire cable attached. Arduino search... ADD TO CART This is a Bipolar Motor. + Audio Breakout Boards Cables + Components + Development Tools + images are CC BY-NC-SA Dings and Dents 3.0 Educators GPS + Intel(R) Edison IoT 3D Download: STL, IGES, STEP, Blender, Solidworks + Kits Step Angle (degrees) :1.8 2 Phase Rated Voltage : 12V Rated Current : 0.33A Holding Torque : 2.3kg*cm 5mm Diameter Drive Shaft Winding resistance: 32.6 Winding inductance: 48 mH Max flux linkage: 1.8 Vs Maximum Detent Torque: 0.016 N.M Total inertia (kg.m.m): 3.5 Kg.m.m Total friction (kg.m/s): 4 Kg.m/s NEMA 17 Mounting Hole Pattern (31mm) Motor Width: 42mm (1.67") quantity 250+ in stock + units + units 0+ units Need larger quantities? Check out our Volume Sales program + Prototyping + SHARE 20 WISH LIST Datasheet SparkFun 10-21-11 Product Showcase Raspberry Pi Robotics FAVORITE Documents: LCDs Skills - Drivers Gears 4 + Kits Motors 1 Features: Books Hardware REGISTER / STEPPER / STEPPER MOTOR WITH CABLE Top Sellers Gift Certificates LOG IN - 1 3 Accessories DC/Gearmotor Other Servo Stepper Recommended Products + Mounts/Hubs PAGE 1 OF 6 Other Pulleys and Belts Sprockets and Chain Wheels Sensors + Swag Tools + Wearables + Widgets SPARKFUN RECOMMENDED SPARKFUN RECOMMENDED SPARKFUN RECOMMENDED SPARKFUN RECOMMENDED Big Easy Driver EasyDriver Stepper Motor Driver Stepper Motor - 68 oz.in (400 steps/rev) Rotary Encoder 1024 P/R (Quadrature) ROB-12859 .95 Wireless + Retired + 20 ROB-12779 ROB-10846 COM-11102 .95 .95 .95 14 12 4 COMMENTS 175 REVIEWS 12 TUTORIALS 1 Customer Reviews 4.3 out of 5 Based on 12 ratings: 5 star 6 4 star 4 3 star 1 2 star 1 1 star 0 4 of 4 found this helpful: Excellent about a year ago by RobotCamera verified purchaser I own three of these motors, and use them for video production, microphotography (controlling the positioning of equipment), and robotics projects. They seem reliable, have enough torque for all of my needs (so far), and can be nicely driven either by H-bridge chips like the L293D, or by more feature-rich motor drivers like the EasyDriver. But as I just discovered, working with SLF radio frequency, which is what you are generating when switching these motors (and all steppers) at typical speeds, is not always carefree. The RFI/EMI produced can interfere with sensitive input pins on microcontrollers, and in my case, an IR receiver module (Vishay TSOP38238). The solution is pretty easy, though - if a part is being influenced by EMI, shield it by surrounding it with grounded conductive material. You can buy shielding, or make your own. I am shielding my IR receiver module by placing it on a piece of PCB with a large ground plane that sits between the IR receiver and the stepper controller, output traces, wiring, and motor. Another thing I like about this motor, which is perhaps a little odd, is the very long cable. I usually only need half the length. I cut it in half and braid it. But the other half I cut off? It makes excellent stranded hook-up wire! So hey, bonus hook-up wire :) For hooking this motor up to projects in a reversible but still dependable manner, I recommend 4-pin mini XLR plugs and jacks. They can be pricey but are worth it because accidentally disconnecting a running motor while attached to a controller can destroy the controller. I have also used S-video (4-pin mini DIN) connectors in the past, but after trying mini XLR, I found it to be a far superior solution. Last thing to note - you can dissemble these motors to see how they work, and put them back together easily. Once opened up, you just have to tug on the rotor a bit because there are fairly strong magnets in there. You can also reverse the axle so it comes out the other side - I had to do that for one project to get the motor mount where I wanted it. 1 of 1 found this helpful: Nice! about 2 years ago by Member #513903 verified purchaser Very nice product, works as described, would be even greater if it had a universal mounting hub included... 3 of 4 found this helpful: Stepper Motor about 2 years ago by Member #636145 verified purchaser This makes a great low RPM generator for windmill , waterwheel science fair projects .. puts out 6 Volts AC at about 70 RPM which will power 5 V. LED's. 0 of 2 found this helpful: Pretty good for power generation! about a year ago by Member #432286 verified purchaser Bought this motor for a wind turbine (my university's senior project). Ran it with a 3D printed 3-bladed turbine, with a NACA 2410 airfoil, 5.25" span and 1" chord with a 0.45" hub (so the inner radius of the blade is 0.45" and the outer radius is 5.7"). Test setup used a 9.65k ohm resistor connected to two rectifier bridges (one for each output) with 0.32V forward loss schottky diodes and 1000uF electrolytic capacitors from DigiKey. At 6 m/s freestream velocity, turbine spun at ~460 rpm and motor produced 31V. At 9.2 m/s, ~985rpm and 61V. At 11.9 m/s, ~1420 rpm and 70.6V. P=V2/R, so power at the three speeds was 0.010A, 0.385A, and 0.517A. We also used the cheap circular stepper motor from sparkfun and it only produced 0.030A at 12 m/s and 1450 rpm. EDIT: In an earlier review, I incorrectly assumed that the "friction" seen with this motor was due to the magnet rubbing against the outer walls. Actually, this "friction" was the detent torque - seen when the wires were shorted together. When used as a generator, the load (resistance) across the wires will determine the amount of detent when you try to spin the turbine. A previous review wanted a universal mounting hub - we used SparkFun's 5mm to 1/4" shaft coupler to mount our blades, which could also be used with a 3mm to 1/4" shaft coupler for other motors. No Motor Mounts? about 9 months ago by Member #772669 verified purchaser I'm the sure the motor works great but it's a NEMA 16 motor mount.....they don't sell NEMA 16 motor mounts and i'm having a very difficult time find one (anywhere). Single T replied on February 25, 2016: I wish we had a motor mount too. When I need to mount these, I have used a plate that I drill to match the mounting holes. Not an off the shelf solution I know. But it might help someone. Thanks Simple and Effective about 11 months ago by rickcjmac verified purchaser It is a surprisingly strong and simple motor. I used the TB6612FNG with a 12 V wall wart and it started right up! 0 of 3 found this helpful: problem with bearings about a year ago by Member #688742 verified purchaser i buy four parts, while 2 of them have problem with spring force and this stall the rotor when try to rotate it by hand i fix it no big deal Perfect for the job. last year by Member #507443 verified purchaser Used to drive a power focuser on a telescope. Plenty of torque and robust. Trial and error methods mean errors - no problem for this motor. Seems to work just fine about a year ago by Member #447117 verified purchaser Didn't have much trouble at all getting this thing up and running with an Arduino Uno and a TI SN754410 H-Bridge. SHARING INGENUITY SUBSCRIBE TO NEWSLETTER SparkFun is an online retail store that sells the bits and pieces to make your electronics projects possible. 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