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Brushless DC Motor
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Gearbox Brushless Motor
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Linear Stepper Motor
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Frameless Servo Motor
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DC Worm Gear motor
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Stepper Motor Controller
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DC Brush Gear Motor
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AC Servo Motor
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Rod S****I purchased the 3-pack of the smaller steppers for my current ender 3 pro project. For my applications, they work perfectly. It's a great deal for quality motors, and I'm going to purchase another 10 packs.
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Sam N***These are great motors and they are very strong. They are operating quietly, and also need them to release their hold every time a move is complete.
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Jim S**Please develop more low noise gearbox and with better prices, so we can sell your products to more clients and gain larger markets. Thank you.
NEMA 17 Gearbox Stepper Motor High Torque 2.5Kg Cm 0.24nm 1.8 Degree 12V

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xProduct Name | Stepping Gearbox Motor | Step Accuracy | ± 5% |
---|---|---|---|
Temperature Rise | 80 ℃ Max | Insulation Resistance | 100MΩ Min.500VC DC |
Ambient Temperature | -20℃~+50℃ | Dielectric Strength | 500VAC 1 Minute |
Max Radial Force | 28N (20mm From Front Flange) | Max Axial Force | 10N |
Gearbox Material | Powder Metallurgy | Bearing At Output | Sleeve Bearing |
Highlight | Stepper Motor 2.5Kg cm 0.24nm,nema 17 stepper motor 12v,stepper motor gearbox nema 17 |
42BYGH208-58AG117 NEMA 17 electric motor reduction gearbox 1.8 degree 12V stepper motor
42BYGH208-58AG117 is a 42BYGH208 stepper motor installed with a 36mm gearbox. The reduction ratio is 1:117, in which the rated tolerance torque is 2.5Nm, and max momentary tolerance torque is 7.5NM. The output shaft can endure radial load(10mm from flange) at 120N and shaft axial load at 80N.
Model | Size | Weight(g) | Current/phase | Gearbox diameter | Dielectric Strength | Ambient Temperature: | Step Angle | Holding torque with gearbox (Nm) | Radial load(10mm from flange) | Shaft axial load |
42BYGH208-57AG16 | 42*42*66.1 mm | 373 | 0.4 | 36mm | 500V AC 1minute | -20℃-50℃ | 1.8 | 2.88 | ≤120N (10mm from front flange) | ≤80N |
42BYGH208-59AG54 | 42*42*93.8 mm | 467 | 0.4 | 42mm | 500V AC 1minute | -20℃-50℃ | 1.8 | 8.78 | ≤120N (10mm from front flange) | ≤80N |
42BYGH208-58AG117 | 42*42*75.6 mm | 413 | 0.4 | 36mm | 500V AC 1minute | -20℃-50℃ | 1.8 | 19.01 | ≤120N (10mm from front flange) | ≤80N |
Electrical Specification
STEP ANGLE | °/STEP | 1.8 |
RATED VOLTAGE | V | 12 |
CURRENT | A/PHASE | 0.4 |
RESISTANCE | Ω/PHASE | 30 |
INDUCTANCE | mH/PHASE | 42 |
HOLDING TORQUE | Kg.cm | 2.5 |
INSULATION CLASS | B |
*Products can be customized by special request.


GEARBOX Electrical Specification
Out diameter 36mm Powder metallurgy
Housing material | Bearing at output | Radial load(10mm from flange)N | Shaft axial load(N) | Shaft press-fit force max(N) | Radial play of shaft(mm) | Thrust play of shaft(mm) | Backlash at no-load (°) |
Powder metallurgy | sleeve bearing | ≤120 | ≤80 | ≤500 | ≤0.03 | ≤0.1 | ≤1.5 |
Reduction ratio | Rated tolerance torque (Nm) | Max momentary tolerance torque (Nm) | Efficiency% | Length (mm) | Weight(g) | Number of gear trains |
1/4 | 0.3 | 1.0 | 81% | 24.8 | 145 | 1 |
1/5 | ||||||
1/16 |
1.2
|
3.5
|
72% | 32.4 | 173 | 2 |
1/20 | ||||||
1/25 | ||||||
1/53 |
2.5 |
7.5 | 65% | 41.9 | 213 | 3 |
1/62 | ||||||
1/76 | ||||||
1/94 | ||||||
1/117 |
Mechanical Dimension


Wide Speed Ratio with a Long Service Lifespan
For the same amount of load capacity, a planetary gearbox has a higher service lifespan than the traditional gearboxes. Therefore, these gearboxes are easy to handle and install. These are key aspects that can improve efficiency and reliability in any mechanical system.
Again, the arrangement of gears is such that the entire system remains stable and reliable.