Will powering this motor with a 12v 2A power supply cause damage? The motor is rated for 12v at 1.68A

No. The IV relation is fixed, meaning when you apply a certain voltage, a corresponding amount of current will flow. Due to the resistances of the windings, when you apply 12 V, only 1.68 A will flow by design. If you try to force 2A, then you will need a higher voltage. With that being said, it is better to use a stepper motor controller IC instead of driving the motor directly from the power supply.

How noisy is this motor?

It has been a long time since I purchased this gear motor and put it service, but do not remember it as being at all noisy.

How much torque is necessary to backdrive this gearbox? I am looking for a backdrivable gearbox.

Are you refering to the gearbox alone or the gearbox plus the motor? The gearbox will simply amplify the amount of torque: if it's a 1:100 gearbox, for backdriving, you need 100 times the torque compared to backdriving the stepper motor shaft directly. As for the actual torque in the presence of the motor, it varies depending on how much current is flowing through the motor. As a crude estimate, even without any current flowing, it is VERY difficult for an average adult male to backdrive the shaft of the gearbox.

Is this kind of motor (with planetary gearbox) necessary for the construction of a syringe pump, or can i use just a nema 17 stepper motor?

I have used the nema 17 stepper motor for making a syringe pump with no gearbox using a leadscrew just fine for up to 25mL syringes. The leadscrew provides sufficient gearing itself. There is a good open source version on university of British Columbia. Possibly a larger syringe would necessitate a gearbox

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Descripción

⚙️ Unlock precision power with every rotation — don’t let your projects settle for less!

GEARBOX MASTERY - Built-in 51:1 planetary gearbox ensures exceptional torque multiplication with minimal backlash (≤1°).
COMPACT YET MIGHTY - NEMA 17 form factor with a solid 620g metal build balances size and strength for versatile integration.
PLUG PLAY CONFIDENCE - Designed for bipolar 4-wire connection with rated current of 1.68A, optimized for constant current drivers.
PRECISION IN EVERY TURN - Experience ultra-smooth motion with an industry-leading 0.035° step angle for pinpoint accuracy.
TORQUE THAT POWERS INNOVATION - Delivering a robust 4Nm holding torque, perfect for demanding low-speed, high-torque applications.

The STEPPERONLINE 51:1 Precision Camera NEMA 17 Stepper Motor combines a high-torque 4Nm output with an ultra-fine 0.035° step angle, thanks to its integrated 50.9:1 planetary gearbox. Engineered for applications demanding low speed and high precision, this compact 620g motor features a bipolar 4-wire design optimized for constant current drivers, delivering reliable, backlash-minimized performance in a durable metal frame.

Presupuesto

ASIN	B00QEVLDVO
ASIN	B00QEVLDVO
Batteries Included?	No
Batteries Required?	No
Customer Reviews	4.3 4.3 out of 5 stars (36)
Customer reviews	4.3 4.3 out of 5 stars (36)
Cutting Diameter	42 Millimeters
Date First Available	15 February 2015
Date First Available	15 February 2015
Is Discontinued By Manufacturer	No
Item Package Quantity	1
Item Weight	620 g
Item diameter	42 Millimeters
Item model number	17HS19-1684S-PG51
Item model number	17HS19-1684S-PG51
Manufacturer	OSM Technology Co.,Ltd.
Manufacturer	OSM Technology Co.,Ltd.
Material	Metal
Part number	17HS19-1684S-PG51
Power source type	DC
Product Dimensions	4.2 x 4.2 x 4.8 cm; 620 g
Shape	Square
Size	Nema 17
Specific uses	DIY, Science and Industry, 3D Printer
Speed	4 RPM
Voltage	12 Volts

Reseñas

E**E

This 50:1 (well, if you are going to be a detail person it's 51:1) gearboxed NEMA 17 works as advertised. My project needed more torque than speed, and this did the trick. Overall, I'm really quite pleased. That said, there are a couple of things about this unit. First, it is quite heavy, considerably more so than the motor alone. I was surprised (maybe I shouldn't have been, but I was.) Second, as another reader pointed out, mounting holes DO NOT follow standard NEMA 17 design. Look at the user guide/spec sheet prior to final design. I don't see points (1) or (2) as negatives. Third, the motor is hard wired rather than have a detachable harness. Minor negative. Fourth, there is a small amount of play/backlash, but the device was within spec. At this price, performance is more than satisfactory. Overall I am happy and would certainly buy again if I needed a gearboxed stepper.

17.07.2020

J**.

23.02.2023

T**M

Super Teil. Lediglich das leichte Spiel im Planetengetriebe. Welches aber in der Preisklasse zu erwarten ist. Steuer es mit Arduino und einem Stepper online Treiber.

14.01.2021

A**O

Arrivato come da previsione. coppia notevole. l'ho utilizzato per automatizzare l'apertura e chiusura di una grance persiana ( 20 mq.)

18.04.2021

B**.

La réduction est vraiment très importante ce ce fait la vitesse de rotation en sortie est de l'ordre de 14 tours minute au grand maximum

26.03.2023

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Trustscore 4.5 | Más de 7,300 reseñas

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51:1 Precision Camera for Nema 17 High Torque Planetary Gearbox

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