STEPPERONLINE 5PCS Nema 17 Stepper Motor Bipolar 2A 84oz.in 48mm 4-Lead for 3D Printer/CNC

These work really well. If you buy these to upgrade the steppers on a 3D printer, use a board that supports a stepper driver like the DRV8825 so you can adjust the current for these motors. I know a stock Anet v1.0 board does not supply enough.

Muy bueno ,los use en mi impresora 3d ,funcionan bien solo que son muy ruidosos

Works perfect, much better than the original motors I had. Only issue is they don't have a plug to make rewiring cleaner. Also the wires coming out of the motor are all independent, so it makes it messy to keep them together. Those are just my OCD issues, not a knock on the motors themselves though.

Great quality!

Great Steppers, worked wonders for a 3d printer. Plenty of power and great accuracy for the job. OSM also has additional information about their products on their website so you can properly match a driver/controller and power supply with the stepper motor.My only complaint is the wires are free floating with no organization once so ever, and no I’m not a big fan of spaghetti wiring, nothing a little heat shrink won’t fix but still. Also others may want to know that these come with no connector on the end of the wires, which to me is understandable and I don’t care, but you might.

The stepper motors are rated at 2A where most others are below this current level. I have used them without any issues. They run very quietly. I am using them in a CNC wood mill. I recommend these without any reservations.

So far it's a good little motor, however the low 1.1ohm coil resistance is causing me some issues with one of the L298N H-bridge modules I also bought off amazon. In order to drive this motor you either need a current limited power supply <2A or you need to drive it at about 2V. If you supply it with 12V as stated in the spec sheet, it will draw about 11A, which is plenty to smoke-check both the motor and your H-Bridge. If you're going to use this with the L298N, you must use PWM, or wire 4-8ohm@5W resistors. If you don't know what any of this means, don't use it with the L298N modules you will end up smoke checking the motor or the bridge.

I failed to read the other reviews until I had issues with the motors weeks after I got them. 3 of the 5 appeared to not work properly. I investigated and found the A- and B- connections were backwards. These same three are also different than the other two I received. Checking the parts numbers on them (only 2 of the 5 were labeled) and they are indeed different.I would not recommend buying.

Decent product, as described.