25mm Small Stepper Motor Dual-Layer 25BY, 24V Bipolar PM, 15° Step
Applications: automotive instrument pointer positioning, medical analyzer indexing mechanisms, optical instrument positioning mechanisms, monitoring instrument indicators, rotary laser positioning mechanisms, small valve positioning mechanisms, printer and copier positioning mechanisms, packaging machine indexing mechanisms.
Inquiry NowRelated Product Documents & Downloads
| Document Description | File Details |
|---|---|
| KC-25BY26317 24V 25mm Small Stepper Motor – Dual-Layer Dimensions & Wiring Diagram | PDF · English · 140 KB |
25mm Small Stepper Motor KC-25BY26317 Technical Specifications
The KC-25BY26317 is a 25mm small stepper motor with a dual-layer permanent magnet structure, 2-phase bipolar excitation and a 15-tooth spur pinion. The electrical and mechanical data below define the configuration for dimensional review, drive matching and sample validation.
Electrical And Performance Specifications
KC-25BY26317 dual-layer permanent magnet stepper motor electrical data
| Parameter | Specification |
|---|---|
| Motor Type | Dual-layer permanent magnet (PM) stepper motor |
| Structure | Dual-layer / double-stack stepper motor |
| Drive Voltage | 24.0 ± 0.2 V DC |
| Number Of Phases | 2 phases |
| Drive Mode | Bipolar |
| Excitation Method | 2-2 phase bipolar excitation |
| Step Angle | 15° / step |
| Coil Resistance | 16 Ω / phase ± 10% at 25 °C |
| Coil Inductance | 7.0 mH / phase ± 25% at 25 °C, 1 kHz, 1 V |
| Maximum Pull-Out Rate | 1 100 pps max. at 24 V |
| Maximum Pull-In Rate | 700 pps max. at 24 V |
| Detent Torque | 25 gf·cm ref., no excitation |
| Insulation Resistance | 100 MΩ or more at 500 V DC |
| Insulation Class | Class E |
| Temperature Rise Limit | 115 °C max. |
| Temperature Rise Test | Motor at free load, normal temperature and humidity, 800 Hz driving, resistance method |
| Operating Position | Output shaft horizontal |
Mechanical, Pinion And Wiring Specifications
Dimensions, output pinion, lead wire and drawing information for mechanical integration
| Parameter | Specification |
|---|---|
| Model | KC-25BY26317 |
| Motor Diameter | Ø25 mm |
| Motor Body Length | 23.6 ± 0.3 mm |
| Mounting Plate Height | 27.8 ± 0.4 mm |
| Mounting Holes | 2 × Ø3.2 ± 0.1 mm |
| Mounting Corner Radius | 2 × R3 |
| Drawing Dimension | 32 ± 0.15 mm |
| Mounting Angle | 55° ± 5° |
| Top Mounting Dimension | 14.3 ± 0.3 mm |
| Body To Gear Face | 15 ± 0.5 mm |
| Gear Face Width | 5 mm |
| Gear Type | Involute cylindrical spur gear |
| Gear Module | 0.5 |
| Pressure Angle | 20° |
| Number Of Teeth | 15 |
| Gear Tip Diameter | Ø8.5 mm |
| Gear Material | C3604 |
| Lead Wire | 3302, 30 AWG, 110 ± 10 mm |
| Connector | PHR-4P |
| Pin 1 | Yellow – Phase A |
| Pin 2 | Brown – Phase A̅ |
| Pin 3 | Orange – Phase B |
| Pin 4 | Black – Phase B̅ |
| Rotation Direction | CW as shown in drawing |
| Drawing Scale | 2:1 |
| Drawing Product Name | Dual-layer stepper motor |
KC-25BY26317 Outline Dimensions
Mechanical drawing for mounting, body length and pinion interface review
Engineering Advantages
- The dual-layer permanent magnet construction is a defining mechanical feature of this 25BY configuration and distinguishes it from single-layer versions.
- The 2-phase bipolar winding and specified 2-2 phase excitation provide clear electrical requirements for driver selection and system integration.
- Separate pull-in and pull-out rate specifications help engineers distinguish starting capability from running response when defining pulse conditions.
- The 15-tooth module 0.5 spur pinion provides a defined mechanical output interface without classifying the motor as a geared stepper motor or reduction gearbox assembly.
- Specified mounting dimensions, lead length and PHR-4P wiring information support mechanical layout and harness planning during prototype development.
- Class E insulation and the specified insulation resistance provide reference data for electrical design review before sample approval.
Payment
1. Payment Arrangement:
Payment method and commercial terms are confirmed according to the order requirements before order placement.
Payment method and commercial terms are confirmed according to the order requirements before order placement.
2. Quotation Basis:
Commercial terms are prepared after the required model, quantity and technical requirements are confirmed.
Commercial terms are prepared after the required model, quantity and technical requirements are confirmed.
Shipping
1. Shipping Method:
The shipping method is selected according to destination, order quantity and project requirements.
The shipping method is selected according to destination, order quantity and project requirements.
2. Shipping Schedule:
The dispatch arrangement is confirmed after the order details and production schedule are finalized.
The dispatch arrangement is confirmed after the order details and production schedule are finalized.
KC-25BY26317 Frequently Asked Questions
Q: Is KC-25BY26317 A Geared Stepper Motor?
A: No reduction gearbox is specified. The motor uses a 15-tooth involute cylindrical spur pinion on the output side, so it should not be classified as a geared stepper motor.
Q: What Drive Configuration Does This Motor Use?
A: It is specified for 24.0 ± 0.2 V DC with 2-phase bipolar operation and 2-2 phase excitation.
Q: What Is The Step Angle?
A: The specified step angle is 15° / step.
Q: What Is Different About The Dual-Layer Structure?
A: KC-25BY26317 is specified as a dual-layer / double-stack permanent magnet stepper motor. The current data does not provide a direct performance comparison with a single-layer version, so load capability should be confirmed from approved samples.
Q: What Connector And Lead Wires Are Used?
A: The drawing specifies a PHR-4P connector with 3302 30 AWG lead wires. The wire colors are yellow, brown, orange and black for the two bipolar phases.
Q: What Should Be Confirmed Before Production Use?
A: The motor should be validated with the actual driver, load, pulse profile, mounting arrangement and application duty requirements. Final parameters should be confirmed based on approved samples and project requirements.
Related Motor Specifications
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