Choosing the right Nema 11 stepper motor is essential for compact, precise motion control in small CNC machines, 3D printers, and robotics. This guide highlights five highly compatible options, comparing size, torque, current, and lead configurations to help you select models that balance performance with footprint.
| Product | Frame Size | Holding Torque | Current/Lead | Notes |
|---|---|---|---|---|
| Iverntech Nema 11 Stepper Motor | 28x28x28 mm | 2-phase; high efficiency | 0.8A; 4-lead | Includes 50 cm cable |
| STEPPERONLINE Nema 11 0.67A | 28×28 mm | 12 Ncm (17 oz-in) | 4-wire; 0.67A | Moderate torque, compact form |
| YEJMKJ Nema 11 1.8° 8Ncm | 28×31 mm | 8 Ncm (11.33 oz-in) | 0.8A; 4-lead | Includes 1 m cable |
| YEJMKJ Nema 11 1.8° 3Ncm | 28×22.4 mm | 3 Ncm (4.25 oz-in) | 0.4A; 4-wire | Very compact option |
| STEPPERONLINE 100:1 Planetary Gearbox Nema 11 | Standard Nema 11 frame | High torque with gearbox | 4-wire | Low speed, high torque |
| STEPPERONLINE 0.67A Nema 11 | 28×28 mm | 9.5 Ncm | 4-wire; 0.67A | Good all-around option |
| YEJMKJ Nema 11 2 Phase 1.8° 15Ncm | 28×50.4 mm | 15 Ncm (21.24 oz-in) | 0.7A; 4-lead | Higher torque for tiny packages |
Below are five product-focused sections with quick specifications and practical notes to compare how each model might fit your project needs. All sections include a direct link to the product page for convenient evaluation and purchase.
Iverntech Nema 11 Stepper Motor 28mm Body
The Iverntech Nema 11 motor features a compact 28x28x28 mm frame compatible with small-format CNC, 3D printers, and robotic actuators. It is a two-phase bipolar design with four leads, delivering efficient operation and reliable performance in tight spaces. A 50 cm (20″) cable is included to simplify wiring. This model suits lightweight axes where moderate torque and minimal heat are priorities. Applications may include precise positioning tasks in desktop CNC and hobby robotics.
STEPPERONLINE Micro Stepper Motor Nema 11 0.67A
With a holding torque around 12 Ncm (17 oz-in), this Nema 11 motor is a popular choice for compact automation projects requiring balancing speed and torque. Its 28×28 mm frame and 51 mm body length provide a compact footprint while maintaining dependable performance. Four-wire configuration simplifies motor wiring for straightforward integration into control boards and drivers used in small DIY machines.
YEJMKJ Nema 11 Stepper Motor 1.8° 8Ncm
This YEJMKJ model combines a modest 8 Ncm holding torque with a compact 28×31 mm body and a 1 m cable. The 0.8 A current rating, 4-lead configuration, and 1.8-degree step angle make it suitable for small- to mid-range positioning tasks where space is limited and precision is essential. It is compatible with a range of control boards common in hobbyist CNC and 3D printing setups.
YEJMKJ Nema 11 Stepper Motor 2 Phase 0.4A 3Ncm
This very compact, low-current Nema 11 motor offers a light torque profile, suitable for micro-positioning stages and delicate feed mechanisms in compact CNC or robotic projects. The smaller 22.4 mm body thickness and minimal current draw (0.4 A) help reduce heat generation, which can be advantageous in multi-axis systems with limited cooling. Its 1 m cable and robust insulation characteristics support long-term reliability in controlled environments.
STEPPERONLINE 100:1 Planetary Gearbox Nema 11
This option pairs a Nema 11 motor with a planetary gearbox, offering a dramatic speed-to-torque enhancement for low-speed precision tasks. The high torque at reduced speed is ideal for camera rigs, micro-robotics, and small CNC modules where slow, steady motion is required. The integrated gear mechanism introduces added backlash considerations, so select this model when positional accuracy at low speeds is a priority and controllable play is manageable in the application.
STEPPERONLINE Nema 11 High Torque 0.67A
This model emphasizes higher torque within the Nema 11 family, offering 9.5 Ncm (13.5 oz-in) holding torque. The 28×28 mm frame keeps it suitable for compact builds, while the 1.1×1.1×1.75 inch body size maintains a small footprint. Four-wire configuration and 0.67 A current enable straightforward driver integration for hobbyist CNC machines and precise glides in 3D printers or robotics projects that demand more force without increasing size.
YEJMKJ Nema 11 1.8° 15Ncm High Torque
This YEJMKJ model pushes torque higher in the compact 28×50.4 mm form, delivering around 15 Ncm of holding torque with a 0.7 A current. The extra length accommodates a larger rotor while staying within a small footprint, making it a fit for compact, high-torque requirements on a tight axis. The 1 m cable and 4-wire setup simplify wiring for control boards common in mini CNC assemblies and DIY robotics.
Buying Guide: Key Considerations For Nema 11 Stepper Motors
When selecting a Nema 11 motor, balance is key. Consider torque at your target speed to avoid stall or slip. If your design prioritizes compactness, verify the exact frame dimensions (28×28 mm) and any protrusions that affect mounting clearance. Current rating impacts heat generation and driver compatibility; ensure your driver can supply peak current without overheating. Lead count and wire gauge influence wiring complexity and noise immunity. If precise, slow movement is essential, a motor with a gearbox could be advantageous. Cable length should fit your planned routing, and insulation ratings matter for heat-prone environments. Finally, assess torque-to-weight efficiency, mounting flexibility, and availability of replacement parts for long-term reliability.
In practice, match the motor’s torque to the load moment, and account for mechanical losses in belts, lead screws, or gears. For compact printers or milling rigs, a 0.6–0.8 A class motor with 8–15 Ncm torque can reliably drive light stages without excessive heat. For higher precision or heavier micro-axes, consider a model with 15 Ncm or more, paired with an appropriate driver and cooling strategy. A gearbox adds versatility for slow, high-torque tasks but introduces backlash; plan against it with alignment and control algorithms. Always verify compatibility with your driver’s microstepping resolution and wiring scheme before purchase.