ROTARY STEPPER MOTORS > NEMA 11
Rotary Stepper Motor
NEMA 11 (28mm)
Versatile and reliable, NEMA 11 stepper motors find applications in CNC machines, robotics, and automated equipment. Offering a balance between size and performance, they deliver precise motion control and high torque, making them indispensable in various industrial and commercial settings.
Encoders available upon request.
Additional Product Details
General | |||||||
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Accuracy | Step angle | 1.8°±5% | |||||
Resistance | ±10% / 20 C | ||||||
Inductance | ±20% / 1KHz | ||||||
Insulation class | B | ||||||
Duty type | S1 | ||||||
Dielectrical strength | 500 VAC / 1 KHz / 1 mA / 1 s | ||||||
Insulation resistance | 100 MΩ / 500 VDC | ||||||
Permissible radial load (5MM distance from mounting surface) |
Permissible radial load (10MM distance from mounting surface) |
Permissible radial load (15MM distance from mounting surface) |
Permissible radial load (20MM distance from mounting surface) |
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50N | 35N | 25N | 20N | ||||
Parameter | |||||||
Type | Current (A [RMS]) |
Resistance (Ω) |
Inductance (mH) |
Holding Torque (N·m) |
Rotor Inertia (g·cm2) |
Length (mm) |
Mass (g) |
11H2033 | 1 | 2.1 | 1.2 | 0.06 | 9 | 33.5 | 110 |
11H2045 | 1 | 4.1 | 3.2 | 0.1 | 13 | 45 | 200 |
11H2052 | 1 | 4.7 | 3.9 | 0.14 | 18 | 52 | 280 |
Material | |||||||
End bell | Aluminum alloy | ||||||
Bearing | Deep groove ball bearing | ||||||
Magnet | Sintered NdFeB | ||||||
Shaft | Stainless steel | ||||||
Wiring | UL 3265, 26 AWG |
All speed / torque curves below are generated using 8:1 microstepping setting on driver. (Click to enlarge)
Frame Material | Metal | |||||
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No Load Backlash | 1° | |||||
Bearings | Ball Bearing | |||||
Ratio | Rated Torque (Kgf-cm) |
Limit Torque (Kgf-cm) |
Stages | Efficiency (%) |
Length (mm) |
Mass (g) |
3.3 | 5 | 15 | 1 | 90 | 21.2 | 87 |
4.6 | ||||||
11.2 | 10 | 30 | 2 | 81 | 26.9 | 91 |
15.5 | ||||||
21.5 | ||||||
37.7 | 25 | 75 | 3 | 73 | 32.7 | 100 |
72 |
Rated Voltage | DC24V ±5% |
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Resistance | 143.7Ω ±10% |
Output | 5.5W |
Hold Torque | >0.03 Nm |
Insulation Class | B |
Insulation Resistance | >100MΩ (DC500V) |
Dielectrical Strength | 1 sec by AC1000V |
Armature Attraction Period | 50ms |
Armature Releasing Period | 50ms |
Backlash | 1° |
Rated Life of Brake In Motion | 200 times |
Rated Life of Brake - Non-Moving | 2,000,000 times |
Noise Level | <60db |
Part Number Construction
Please choose the right part number by following the guidelines below.

Part Number Component | Description | ||||||||||||||||||
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1. Motor Size |
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2. Basic Structure | H = Normal P = IP54 W = Enhanced ** For IP65, please contact DINGS' for more information |
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3. Motor Step Angle [°] | 1 = 3° 2 = 1.8° 3 = 1.2° 4 = 0.9° 5 = 0.72° 6 = 0.36° |
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4. Motor Length [mm] | |||||||||||||||||||
5. Rated Current | XXX = Rated current × 100 (A) | ||||||||||||||||||
6. Wiring Number | 3,4,5,6,8 | ||||||||||||||||||
7. Shaft Configuration | A = Single Shaft B = Dual Shaft * Shaft dimension and D-Cut customization, please contact DINGS' |
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8. Wiring Method | L = Flying Lead Wire T = Integrated Connector C = Cable * If customer has special requirement for connector and cable, please inform DINGS' |
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9. Option |
GR = Planetary Gearbox Ready BR = Brake Ready ER = Encoder Ready PG = Planetary Gearbox, Refers to the Part Number of Gearbox with Ratio DG = DINGS' Gearbox FB = Power off brake, NB = Power on Brake EKX = Encoder (X = Encoder Resolution) * DINGS' can customize shafts and covers to be ready to assemble Gearbox, Brake or Encoder by customers, according to customer's requirements by drawing. * DINGS' has standard planetary gearbox options. Please see product details * Power-Off Brake is available for Motor size 28, 35, 42, 57 and 60mm |
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10. Customer Sequence Number | |||||||||||||||||||
Example |
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