Description
Product Overview
The 35BYJ412P uses permanent magnet stepper technology to convert sequential winding excitation into rotation. A controller determines the movement commands, while a suitable driver supplies power to the motor windings.
The eccentric output layout makes shaft location an important part of mechanical integration. Designers can match the output position to a corresponding coupling, linkage, or transmission without assuming a centered drive arrangement.
Different configurations offer different operating characteristics. Selecting the appropriate version requires consideration of the load, movement speed, transmission, and operating cycle.
Key Features
Eccentric Output Configuration
The offset output axis offers an alternative installation layout for compatible mechanisms. Checking its position against the equipment drawing helps establish alignment and clearance before assembly.
Permanent Magnet Operation
The permanent magnet rotor interacts with the magnetic fields generated by the stator windings. Sequential excitation produces the stepping action used to control rotary movement.
Incremental Movement Control
A compatible control system commands movement through successive steps. This supports mechanical adjustment tasks that require defined movement sequences and repeated operation.
Reversible Rotation
The appropriate excitation sequence enables forward and reverse movement. This capability supports return cycles, alternating adjustments, and mechanisms that operate in both directions.
Integration into Automated Sequences
The controller can coordinate motor movement with sensors, switches, and other equipment functions. Movement, pauses, and direction changes can form part of a programmed operating cycle.
| Model | Rated Voltage (DC) | Resistance (Ω) | Starting Frequency (PPS) | Running Frequency (PPS) | Torque (mN·m) | Detent Torque (mN·m) | Step Angle | Insulation Class | Noise Level (dB) |
|---|---|---|---|---|---|---|---|---|---|
| 35BYJ412P | 12 V | 100 | ≥450 | ≥550 | ≥300 | ≥68.6 | 3.75°/80 | E | <35 |
| 35BYJ412P | 12 V | 50 | ≥450 | ≥550 | ≥147 | ≥68.6 | 3.75°/42.5 | E | <35 |
| 35BYJ412P | 12 V | 20 | ≥450 | ≥550 | ≥98 | ≥68.6 | 3.75°/24 | E | <35 |
| 35BYJ212P | 12 V | 10 | ≥450 | ≥550 | ≥49 | ≥68.6 | 3.75°/12 | E | <35 |
| 35BYJ212P | 24 V | 200 | ≥450 | ≥550 | ≥298 | ≥68.6 | 3.75°/80 | E | <35 |
Potential Applications
Depending on the selected configuration and application requirements, the 35BYJ412P Stepper Motor may suit:
- Offset Drive Mechanisms: Assemblies requiring an output axis away from the motor housing’s center.
- Appliance Adjustment Systems: Movement of internal guides, selectors, or adjustable components.
- Linkage Assemblies: Rotary input to a mechanism that converts rotation into the required equipment movement.
- Instrument Positioning: Adjustment of movable components within a compatible installation layout.
- Automation Devices: Repeated actuation coordinated with controller commands.
Mechanical Installation
Verify the mounting points, output shaft position, shaft geometry, and surrounding clearance against the product drawing. Align the driven component with the output axis to avoid unnecessary mechanical stress.
Use a suitable coupling or transmission connection. Where the mechanism introduces radial or axial forces, provide appropriate support rather than relying solely on the motor shaft.
The eccentric shaft location does not by itself produce reciprocating movement. The connected linkage or transmission determines the final motion of the driven component.
Driver and Control Compatibility
Select a driver that matches the chosen motor version’s winding arrangement and electrical requirements. Confirm the wiring assignments and excitation sequence before operation.
Set acceleration and deceleration to suit the connected load. Abrupt starts or reversals can increase torque demand and cause missed steps if the mechanism exceeds the available output.
Where actual position requires confirmation, a reference switch or suitable feedback device can supplement the movement commands.
Application Matching
Evaluate torque requirements, operating speed, duty cycle, and transmission resistance together. For mechanisms that reverse direction, include backlash and mechanical play when assessing positioning performance.
Secure mounting, suitable wiring protection, and appropriate heat dissipation also contribute to successful integration. Testing within the intended assembly helps assess movement consistency, starting behavior, and temperature rise under representative conditions.







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