14 Pole Brushless Outrunner Motor Stator Lamination Supplier
14 Pole Brushless Outrunner Motor – Precision 12N14P Stator Cores for Drone Propulsion
Outrunner motor cogging ruining flight control? Need smooth, responsive torque for your UAV or FPV application? The 14 pole brushless outrunner motor (12N14P configuration) is the dominant standard for drone propulsion—delivering a near-perfect winding factor of 0.933, exceptionally low cogging torque, and smooth, responsive flight control. As a specialist 14 pole brushless outrunner motor stator lamination supplier, Reenives delivers precision 12N14P stator cores with 0.2mm ultra-thin silicon steel, burr height < 0.03mm, and epoxy coating—reducing core loss by up to 30%, minimizing torque ripple, and enabling smooth, agile flight for FPV racing, UAV logistics, agriculture, and eVTOL applications.
- • What Is a 14 Pole Brushless Outrunner Motor?
- • Classification of 14 Pole Outrunner Stator Cores
- • Technical Specifications & Verified Data
- • Applications: FPV Racing, UAV Logistics, eVTOL & More
- • 6-Step Engineering Selection Guide for 14 Pole Outrunner Stators
- • FAQ: 14 Pole Brushless Outrunner Motor Technical Questions
- • Why Reenives – 14 Pole Brushless Outrunner Motor Stator Lamination Supplier
- • Dongguan Runlu Motor Technology Co., Ltd.
What Is a 14 Pole Brushless Outrunner Motor?
A 14 pole brushless outrunner motor refers to a brushless DC motor with a 14-pole rotor and a 12-slot stator—commonly designated as the 12N14P configuration. This slot/pole combination has become the dominant standard for drone and UAV motors due to its exceptional balance of performance characteristics.
Why the 12N14P outrunner configuration dominates drone motors:
- Near-perfect winding factor – Achieves 0.933, one of the highest for concentrated windings, maximizing torque per amp
- Exceptionally low cogging torque – The 12/14 asymmetry means magnets never align with all teeth simultaneously, dramatically reducing cogging
- Smooth, responsive control – Critical for FPV racing, video gimbal stabilization, and precision UAV flight
- Simple concentrated winding pattern – Each coil wraps around a single tooth, simplifying manufacturing and improving fill factor
- Outrunner configuration – The rotor spins on the outside, providing high torque at low RPM—ideal for direct-drive propeller applications
ⓘ 14 pole insight: "The 14 pole brushless outrunner motor (12N14P) is the gold standard for drone propulsion—delivering the perfect blend of smooth torque, high efficiency, and responsive control that FPV pilots and UAV operators depend on."
Reenives manufactures precision 14 pole outrunner stator cores using imported 0.2mm silicon steel, progressive stamping dies, and automated epoxy powder coating—delivering optimal magnetic performance for demanding UAV, FPV, and eVTOL applications.
Classification of 14 Pole Outrunner Stator Cores
Reenives supplies 14 pole outrunner stator cores across four primary series, tailored to different drone classes and performance requirements:
| Series | Stator OD (mm) | Configuration | Lamination Thickness | Best For |
|---|---|---|---|---|
| Series A – Micro FPV | 12–20mm | 12N14P | 0.15–0.20mm | Micro drones, tiny whoops, sub-100g FPV |
| Series B – FPV Racing | 22–30mm | 12N14P | 0.15–0.20mm | 3–5 inch FPV racing drones, freestyle |
| Series C – Mid-Size UAV | 30–50mm | 12N14P | 0.20mm | Logistics drones, camera platforms, agriculture |
| Series D – Heavy-Lift & eVTOL | 50–80mm | 12N14P | 0.20mm | Heavy-lift UAVs, eVTOL, cargo drones |
14 pole outrunner stator cores are widely used across drone motor sizes:
- 2207, 2306, 2507: Popular FPV racing outrunner stators
- 2812, 3115, 4220: UAV and heavy-lift outrunner stators
- 2312, 2415: Mid-size drone and VTOL applications
Technical Specifications & Verified Data
All performance data below is derived from Reenives in-house laboratory testing (IEC 60404-2), third-party validation, and industry standards for 12N14P outrunner stator cores.
| Parameter | Value / Range (Reenives Standard) | Test Standard / Source |
|---|---|---|
| Configuration | 12N14P (12 slots, 14 poles) | Reenives design standards |
| Stator Outer Diameter | 12–80mm (customizable) | CMM / optical comparator |
| Winding Factor | 0.933 (near-perfect for concentrated winding) | BLDC winding theory |
| Material Type | Silicon steel (CRNGO / Non-oriented) | Material certificates / IEC 60404 |
| Common Grades | 35PN210, 35PN250, 20WTG1300 (Nippon Steel / Baowu) | Material certificates |
| Lamination Thickness | 0.15mm / 0.20mm / 0.35mm (customizable) | Micrometer / IEC 60404-2 |
| Core Loss @ 1.0T, 400Hz (0.20mm) | ≤ 8.5 W/kg — 30% lower than 0.35mm | IEC 60404-2 / Reenives R&D |
| Saturation Flux Density Bs | 1.68 – 1.72 T | Epstein frame test |
| Burr Height (max) | < 0.03mm | Optical measurement |
| Epoxy Coating Thickness | 30–60 µm, dielectric > 2.5 kV | ASTM D149 |
| Stacking Factor | ≥ 97.5% | Weight method |
| Concentricity Tolerance | ±0.01mm – ±0.015mm | CMM measurement |
| Typical Outrunner Motor Efficiency | 90–95% (with optimized 12N14P stator) | IEEE Xplore / FEM simulation |
| Cogging Torque | Very low (due to 12N14P asymmetry) | BLDC motor theory |
🔬 Data Source: Reenives R&D Report 2024-Q4 + IEC 60404-2 standard + Material certificates + IEEE Xplore motor studies.
Applications: FPV Racing, UAV Logistics, eVTOL & More
14 pole brushless outrunner motor stator cores power the full spectrum of drone applications. The 12N14P configuration is the preferred choice for:
| Application | Typical Stator Size | 12N14P Advantages | Performance Priorities |
|---|---|---|---|
| FPV Racing Drones | 22–30mm (2207, 2306, 2507) | Low cogging, high RPM, responsive throttle | Agility, speed, smooth control |
| Freestyle / Cinematic FPV | 22–30mm | Smooth torque, low vibration | Stable video, precise maneuvers |
| UAV Logistics & Delivery | 30–50mm (2812, 3115, 4220) | High efficiency, low cogging | Long flight time, payload capacity |
| UAV Agriculture Spraying | 40–60mm | Corrosion-resistant coating, durability | Heavy payload, chemical resistance |
| eVTOL / Air Taxi | 50–80mm | High torque density, reliability | Safety, redundancy, high power |
| VTOL & Fixed-Wing UAVs | 24–30mm (2415, 2312) | Efficient cruise, smooth transition | Agility and endurance |
"The 14 pole brushless outrunner motor (12N14P) is the gold standard for drone propulsion—delivering the perfect balance of smooth torque, high efficiency, and responsive control."
6-Step Engineering Selection Guide for 14 Pole Outrunner Stators
For drone motor designers and procurement engineers, selecting the optimal 14 pole brushless outrunner stator requires systematic evaluation. Here is a practical 6-step framework:
- Define Drone Class & Performance Requirements – Identify your drone's mission profile:
- FPV racing: High RPM, rapid acceleration—2207, 2306 stators
- UAV logistics: Long flight time, high payload—2812, 3115 stators
- Agriculture: Heavy lift, corrosion resistance—4220+ stators
- eVTOL: Safety, high power density—50–80mm stators
- Select Stator Outer Diameter – Match motor size to drone class:
- 12–20mm: Micro drones, tiny whoops
- 22–30mm: FPV racing, freestyle (2207, 2306, 2507—most popular)
- 30–50mm: Logistics, agriculture (2812, 3115, 4220)
- 50–80mm: Heavy-lift, eVTOL
- Choose Lamination Thickness – Thinner laminations reduce core loss at high frequencies:
- 0.15mm: Ultimate high-RPM performance, FPV racing
- 0.20mm: Optimal balance—most drone applications
- 0.35mm: Not recommended for high-performance outrunner motors
ⓘ "0.20mm laminations reduce core loss by approximately 30% compared to 0.35mm—critical for 12N14P outrunner motor efficiency."
- Confirm 12N14P Configuration – This is the standard for drone outrunner motors. Ensure:
- 12 slots (stator teeth) with concentrated windings
- 14 poles (rotor magnets) for optimal magnetic alignment
- Winding factor 0.933 for maximum torque per amp
- Specify Insulation & Coating – Critical for drone motor reliability:
- Epoxy powder coating (30–60µm, Class H 180°C)
- Corrosion resistance for agriculture and outdoor operations
- Dielectric strength > 2.5 kV for reliable insulation
- Choose a Specialist 14 Pole Stator Supplier – Evaluate outrunner motor expertise:
- Experience with 12N14P outrunner stator design for drone applications
- Ultra-thin lamination capability (0.15–0.20mm)
- Precision stamping: burr < 0.03mm, concentricity ±0.01mm
- Epoxy coating capability for outrunner motor environments
- Material certificates and third-party test reports
- Proven track record with outrunner motor manufacturers
- Engineering support for 12N14P outrunner optimization
FAQ: 14 Pole Brushless Outrunner Motor Technical Questions
A 14 pole brushless outrunner motor refers to a motor with a 14-pole rotor and a 12-slot stator (12N14P configuration). It is the dominant standard for drone motors because it delivers: (1) a near-perfect winding factor of 0.933—maximizing torque per amp, (2) exceptionally low cogging torque—the 12/14 asymmetry means magnets never align with all teeth simultaneously, (3) smooth, responsive flight control—critical for FPV racing and video gimbal stabilization, and (4) simple concentrated winding pattern—each coil wraps around a single tooth. The outrunner configuration provides high torque at low RPM, ideal for direct-drive propellers.
The 12N14P outrunner configuration achieves a winding factor of 0.933—one of the highest for any concentrated winding design. This means approximately 93.3% of the copper winding contributes effectively to torque production, resulting in higher efficiency and better power density compared to configurations with lower winding factors. For drone motors, this translates to longer flight times and more thrust per amp of current.
The 12N14P outrunner configuration has very low cogging torque because the number of stator slots (12) and rotor poles (14) are not equal and have a low common divisor. This means the permanent magnets never align perfectly with all stator teeth simultaneously, which dramatically reduces the magnetic "detent" or cogging effect that causes jerky rotation at low speeds. For drone outrunner motors, low cogging torque translates to: (1) smoother throttle response, (2) better control for FPV pilots, (3) reduced vibration for camera stabilization, and (4) more efficient low-speed operation.
For 12N14P outrunner motors, 0.15–0.20mm laminations are optimal. 0.20mm achieves core loss ≤ 8.5 W/kg at 400Hz—approximately 30% lower than conventional 0.35mm material—delivering longer flight times and cooler operation. For FPV racing outrunner motors operating at extreme RPM, 0.15mm laminations provide ultimate high-frequency performance. Many outrunner stator suppliers use 0.20mm as the standard for FPV and UAV applications.
The 12N14P outrunner configuration is used across a wide range of drone motor sizes, including: FPV racing outrunners (2207, 2306, 2507—common sizes for 3–5 inch drones), UAV outrunners (2812, 3115, 4220—used for logistics and agriculture drones), and general drone outrunners (2312, 2415, 4220 KV600). The 12N14P configuration is the dominant standard for brushless outrunner motors, found in products from leading brands and manufacturers worldwide.
Epoxy powder coating provides three critical functions for 12N14P outrunner stators: (1) electrical insulation between laminations to minimize eddy currents and prevent interlaminar shorts, (2) corrosion resistance for operation in humid environments, outdoor conditions, and agriculture applications where chemicals may be present, and (3) thermal durability up to 180°C (Class H) to withstand the heat generated during high-power outrunner operation. The coating thickness (30–60µm) is optimized for tight slot geometries common in outrunner motors.
Yes. Reenives supports full customization of 12N14P outrunner stators including: stator outer diameter (12–80mm), lamination thickness (0.15–0.20mm), stacking height (customizable for different KV ratings), material grade (35PN210, 35PN250, 20WTG1300), and epoxy coating specifications. Private mould development is available for high-volume OEM projects with exclusive design rights—from micro FPV outrunners to heavy-lift eVTOL propulsion systems.
Why Reenives – 14 Pole Brushless Outrunner Motor Stator Lamination Supplier
Reenives has earned its reputation as a specialist 14 Pole Brushless Outrunner Motor Stator Lamination Supplier by combining advanced manufacturing technology with deep expertise in 12N14P outrunner motor design and drone propulsion systems.
Our Advantages — 12N14P Outrunner Stator Specialists
- ✅ 12N14P Expertise: Winding factor 0.933, ultra-low cogging torque, smooth outrunner flight control
- ✅ Ultra-Thin Silicon Steel: 0.15–0.20mm laminations reduce core loss by up to 30%—extending outrunner flight times
- ✅ Precision Progressive Stamping: Burr height < 0.03mm, concentricity ±0.01mm, stacking factor ≥ 97.5%
- ✅ Wide Size Range: 12–80mm OD stators—from micro FPV to heavy-lift eVTOL outrunners
- ✅ Full Customization: Private mould development, tailored stack heights, and custom specifications
- ✅ Epoxy Coating: 30–60µm, Class H 180°C, dielectric > 2.5 kV
- ✅ Trusted Quality Control: IEC 60404-2 testing, third-party verification, and material certificates
- ✅ Outrunner Motor Expertise: 4 years of experience with 1,000+ enterprise clients—specializing in outrunner propulsion
- ✅ Global Export Capability: Complete export qualifications with worldwide shipping to outrunner manufacturers
- ✅ 100+ R&D Patents: Continuous innovation in 12N14P outrunner stator technology for drone applications
🚁 Our 14 pole outrunner promise: 12N14P stators that deliver smooth, responsive outrunner flight control with minimal cogging. Consistent quality that eliminates rework. Engineering support that optimizes your outrunner motor design. That's why Reenives is the trusted 14 pole brushless outrunner motor stator lamination supplier.
🚁 Ready to power your outrunner motors with precision 12N14P stators?
Contact Reenives today for engineering consultation, OEM samples, and competitive global pricing.
📱 WhatsApp: +86-13377741885
Dongguan Runlu Motor Technology Co., Ltd.
Reenives — Professional Drone Stator Core Manufacturer
Founded in 2022, Reenives has rapidly grown into a trusted 14 pole brushless outrunner stator lamination supplier for the worldwide drone, UAV, FPV, and industrial motor markets.
Independent R&D Technology · Imported stamping & epoxy powder coating production lines · Dust-free workshops · 4 years of manufacturing experience · Solved 12N14P outrunner stator challenges for 1,000+ enterprises worldwide—including leading outrunner motor manufacturers.
From production to sales, we support bulk purchasing, private mould development, and sample making. We provide tailor-made solutions for your specific outrunner motor production scenarios—with competitive global pricing, consistent quality, and reliable on-time delivery.
🌐 www.reenives-bldcmotor.com | 📧 linda_reenives@163.com | 📱 +86-13377741885
✈️ Global outrunner manufacturers welcome — consult, visit the factory, or request free samples today!
Reenives — 14 Pole Brushless Outrunner Motor Stator Lamination Supplier
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