上 15 Gear Motor Manufacturers and Suppliers in China
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China hosts over 3,000 gear motor manufacturers, with the top 15 suppliers controlling approximately 45% of export volume. The leading manufacturers—グリーンスカイパワー, Kinmore Motor, Ningbo Leison Motor, and Xiamen Dazhen Motor—distinguish themselves through IEC 60034-compliant efficiency ratings (IE2–IE4), ISO 9001 quality systems, and full OEM/ODM customization capabilities. When sourcing gear motors from China, prioritize suppliers with verifiable CE/RoHS certifications, documented torque-density specifications, and minimum order quantities (Moq) that align with your production schedule. Chinese gear motors typically cost 30–50% less than European equivalents while meeting the same NEMA MG 1 およびIEC 60034 performance benchmarks, making them the preferred choice for global B2B buyers in robotics, 産業自動化, および電気自動車のアプリケーション.
What Is a Gear Motor?
A gear motor is an integrated electromechanical device that combines an electric motor (交流または直流) with a gearbox (also called a gear reducer) in a single compact unit. The gearbox reduces the motor’s rotational speed while proportionally increasing its output torque, allowing the assembly to deliver high torque at low RPM—exactly what most industrial applications require. によると the International Energy Agency’s “Walking the Torque” report, electric motor-driven systems account for over 53% 世界の電力消費量の, and gear motors represent a significant and growing segment of that total.
Key components of a gear motor include:
- 電気モーター — Provides the primary rotational power (交流誘導, DCブラシ付き, or brushless DC)
- Gear train — Reduces speed and multiplies torque through spur, らせん状の, ベベル, ワーム, or planetary gear configurations
- Housing — Cast iron or aluminum enclosure providing structural integrity and heat dissipation
- ベアリング — Support the output shaft; SKF bearing life calculations are the industry standard for predicting service life
- Lubrication system — Grease-filled (sealed for life) or oil-bath lubrication for continuous-duty applications
How Gear Motors Work: 段階的な原則
Understanding the operating principle of a gear motor helps B2B buyers evaluate supplier specifications more critically. Here is the step-by-step power transmission chain:
ステップ 1: 電気入力
AC power (single-phase 110/220V or three-phase 380/440V) or DC power (12V/24V/48V) is supplied to the motor’s stator windings. The input current creates a magnetic field that interacts with the rotor to generate rotational motion.
ステップ 2: Motor Shaft Rotation
The electromagnetic interaction produces torque at the motor shaft, typically at high speed (1,400–3,500 RPM for AC motors; 3,000–10,000 RPM for DC motors). This speed is far too high for most industrial applications, which is where the gearbox becomes essential.
ステップ 3: Gear Reduction
The motor shaft drives the input gear of the gearbox. Through a series of gear meshes (one or more stages), the rotational speed is reduced by the ギア比 (私). 例えば, a 3-stage helical gearbox with a ratio of 100:1 減らす 1,400 RPM input to 14 RPM output.
ステップ 4: Torque Multiplication
As speed decreases, torque increases proportionally. The fundamental relationship is:
T_出力 = (T_motor × i × η_gearbox)
ここで、T はトルクです (N・m), i is the gear ratio, and η is the gearbox efficiency (typically 90–97% per stage). モーターを生産する 2 N·m of torque with a 100:1 ratio and 90% gearbox efficiency yields 180 N·m at the output shaft.
ステップ 5: Load Delivery
The output shaft delivers the reduced-speed, high-torque rotational power to the application—whether that is a conveyor belt, a lifting mechanism, a packaging machine, or a robotic joint. の 私たち. DOE’s Energy Conservation Standards require that gear motors sold in the U.S. meet specific efficiency benchmarks, with IE4 becoming mandatory for mid-range motors starting June 1, 2027.
Gear Motor Types: 機能比較表
Before evaluating specific manufacturers, it is important to understand the four primary gear motor architectures available from Chinese suppliers. Each type has distinct efficiency characteristics, トルク密度, and application fit.
| 特徴 | Spur Gear Motor | はすば歯車モーター | ウォームギアモーター | 遊星歯車モーター |
|---|---|---|---|---|
| Gear Efficiency | 90–95% | 94–98% per stage | 50–90% (ratio-dependent) | 95–97% per stage |
| トルク密度 | Low–Medium | 中～高 | 中くらい | 高い (コンパクト) |
| 騒音レベル | 適度 | 低い (smooth mesh) | Low–Moderate | 非常に低い |
| バックラッシュ | 5–15 arcmin | 3–10 arcmin | Self-locking (no backlash) | 1–6 arcmin |
| Max Ratio (単段) | 5:1–8:1 | 5:1–10:1 | 5:1–80:1 | 3:1–10:1 |
| Cost Range | $ | $$ | $$ | $$$ |
| 代表的な用途 | コンベヤー, simple drives | 産業オートメーション, パンプス | Lifting, ゲート, 食品機械 | ロボット工学, precision positioning, AGV |
| Self-Locking | いいえ | いいえ | はい (ratio ≥ 30:1) | いいえ |
Sources: Efficiency data based on Siemens SIMOGEAR technical specifications およびIEC 60034-2-1 testing methods.
エンジニアリングデータ: 効率基準, 温度制限, and Torque Formulas
When comparing Chinese gear motor suppliers, three engineering parameters matter most: 効率クラス, thermal limits, and torque output. These are governed by international standards that all reputable manufacturers must comply with.
IEC 60034-30-1 効率クラス
The IEC 60034-30-1 standard defines four (soon five) efficiency classes for electric motors. の 私たち. エネルギー省 2027 rule will require IE4 for mid-range motors (100–250 hp), aligning U.S. standards with the EU’s existing IE4 mandate.
| IE Class | 指定 | Example Efficiency (4-ポール, 1.5 キロワット, 50 Hz) | 規制状況 |
|---|---|---|---|
| IE1 | 標準効率 | 77.2% | Phased out in EU and China for most ratings |
| IE2 | 高効率 | 82.8% | Minimum in many developing markets |
| IE3 | プレミアムな効率 | 85.3% | Current U.S. ベースライン (プレミアムなし); 以降の EU 最低額 2021 |
| IE4 | Super-Premium Efficiency | 88.2% | 私たち. DOE 義務化 6 月 2027 for 100–250 hp; EU mandatory for 75kW+ |
| IE5 | 超プレミアムな効率 | ~91% (target) | Not yet mandated; under development by IEC |
ソース: IEC 60034-30-1:2014 efficiency values; MGはありません 1 一部 12 alignment confirmed by the NEMA-IEC harmonization agreement.
IEC 60034-1 絶縁クラスの温度制限
The thermal performance of a gear motor’s windings directly affects its service life. Per IEC 60034-1, insulation classes define the maximum allowable temperature rise above ambient (40℃):
| 絶縁クラス | 最高温度 (℃) | 温度上昇限界 (K) | 代表的な用途 |
|---|---|---|---|
| クラスA | 105℃ | 60 K | 廃止; legacy equipment only |
| クラスE | 120℃ | 75 K | 小型家電, low-duty motors |
| クラスB | 130℃ | 80 K | 標準産業用モーター |
| クラスF | 155℃ | 105 K | Most common; gear motors for continuous duty |
| クラスH | 180℃ | 125 K | High-temperature environments, heavy-duty gear motors |
Reputable Chinese manufacturers such as Greensky Power specify Class F insulation as standard, with Class H available for high-ambient-temperature applications like steel mills and mining equipment.
Essential Torque and Efficiency Formulas
For B2B buyers evaluating gear motor specifications, these formulas are essential for verifying supplier claims:
1. Output Torque from Gear Ratio:
T_出力 = (9550 × P_motor × η_gearbox) / n_output
どこ: T_output = output torque (N・m), P_motor = motor power (キロワット), η_gearbox = gearbox efficiency (decimal), n_output = output speed (回転数)
2. Gear Ratio Calculation:
i = n_モーター / n_output
3. Overall System Efficiency:
η_total = η_motor × η_gearbox × η_coupling
For a typical IE3 motor (h = 0.853) with a 2-stage helical gearbox (η = 0.96² = 0.922) and coupling (h = 0.99): η_total = 0.853 × 0.922 × 0.99 = 0.779 (77.9%)
4. SKF Bearing Life (L10h):
L10h = (10⁶ / 60n) × (C/P)^p × a_SKF
どこ: C = basic dynamic load rating (kN), P = 等価動的荷重 (kN), p = 3 ボールベアリング用または 10/3 ローラーベアリング用, a_SKF = life adjustment factor per SKF rating life methodology
5. サービスファクター (SF) per NEMA MG 1:
SF = Rated Load / Actual Load
NEMA motors typically carry SF = 1.15, meaning a 1 kW motor can safely handle 1.15 kW continuously. IEC motors use SF = 1.0, so buyers must size IEC motors to the actual load without derating margin.
上 15 Gear Motor Manufacturers and Suppliers in China
China’s gear motor industry is projected to reach ¥330 billion ($46.2 十億) に 2026, ロボット工学によって駆動されます, 電気自動車 (EV), およびスマートマニュファクチャリング. The following 15 manufacturers represent the strongest combination of production capability, quality certification, export experience, and technical customization—evaluated against criteria aligned with international motor standards.
Key Evaluation Criteria
| Criterion | 重さ | What to Verify |
|---|---|---|
| 認証 | 25% | ISO 9001, CE, RoHS, UL, ATEX (該当する場合) |
| 生産規模 | 20% | Annual output, factory area, workforce size |
| R&D / カスタマイズ | 20% | OEM/ODM capability, engineering team, patent count |
| Export Experience | 15% | Years exporting, target markets, trade show presence |
| Standards Compliance | 10% | IEC 60034, MGはありません 1, GB 18613 adherence |
| Lead Time & Logistics | 10% | Standard lead times, MOQ flexibility, 倉庫保管 |
1. 鄭州Aokmanの機械類Co., 株式会社.
Established: 1982 | 位置: Zhengzhou, Henan | 認証: ISO 9001
Aokman is a veteran gearbox manufacturer with over 40 years of experience specializing in heavy-duty industrial gear solutions. Their product portfolio spans shaft-mounted, ベベル, ワーム, 惑星の, cycloidal, and custom gearboxes for metallurgical, 鋼, 鉱業, and pulp-and-paper applications. Aokman’s competitive advantage lies in their ability to engineer large-scale custom gearboxes for extreme-load environments—a capability that few Chinese manufacturers can match. Their export markets span South America, 中東, 北米, そしてアジア.
主な製品: Industrial gearboxes (shaft-mounted, ベベル, ワーム, 惑星の, cycloidal), ギアモーター, ヘリカルギアボックス
最適な用途: Heavy industry, 鉱業, 製鉄所, sugar mills
2. 寧波レイソンモーター株式会社, 株式会社.
Established: 2006 | 位置: 寧波, 浙江省 | 認証: CE, RoHS
Leison Motor offers one of the broadest DC motor product ranges among Chinese suppliers, covering brushed DC motors (6–130mm diameter, 0.1–1500W), DC spur gear motors (12–104mm), DC planetary gear motors, ブラシレスDCモーター (24–110mm, 1–2000W), およびステッピングモーターズ (NEMA 8–43). Their AC gear motor line covers 3–3700W. Leison’s strength is in serving diverse industries from home appliances to industrial automation with flexible MOQ and competitive pricing. They also produce high-torque DC gear motors for lifting and conveyor applications.
主な製品: DC brushed/brushless motors, DC spur and planetary gear motors, ステッピングモーター, AC gear motors
最適な用途: 家電, 家電, 自動車, ロボット工学, 産業自動化
3. 寧波鄞州新嘉モーター製作所
Established: 1997 | 位置: 寧波, 浙江省 | Factory Area: ~50,000 m² | Workforce: ~300
Xinjia Motor has built a strong reputation in kitchen appliance motors, producing gear motors for juicers, アイスクラッシャー, meat grinders, and coffee bean grinders. 彼らの 50,000 m² facility and 300-person workforce give them the scale to handle high-volume OEM/ODM orders. They also manufacture single-phase series motors and gear reduction motors for electric tools such as lawn mowers. Xinjia’s OEM/ODM service accepts customer samples, 図面, and custom designs.
主な製品: Single-phase motors, gear reduction motors, kitchen appliance motors
最適な用途: Kitchen appliances, food processing equipment, 電動工具
4. 寧波高生機電技術有限公司, 株式会社.
Established: 2001 | 位置: 寧波, 浙江省 | 認証: ISO 9001
Gaosheng specializes in small-to-medium DC gear motors, offering spur, 惑星の, ワーム, and synchronous gear motor configurations. Their product range also includes single-phase motors, 誘導電動機, そしてブラシレスモーター. With an experienced R&D team capable of developing new models based on customer requirements, Gaosheng serves the home appliance, オフィス設備, おもちゃ, 自販機, and heating equipment markets. Their ISO 9001 certification ensures consistent quality control across their product line.
主な製品: DCギアモーター, 遊星歯車モーター, ウォームギアモーター, 同期モーター, 誘導電動機, BLDCモーター
最適な用途: Home/office appliances, 自動販売機, amusement equipment, 点灯, ヒーター
5. 厦門大鎮汽車有限公司, 株式会社.
Established: 1984 | 位置: Xiamen, 福建省 | Factory Area: 30,000 ㎡ | 認証: ISO 9001, ISO 14001, RoHS, Halogen-Free
Dazhen Motor is one of the most technically advanced manufacturers on this list, recognized as a National High-Tech Enterprise and National Torch Program participant. 彼らの 40+ years of experience in precision micro motors serves diverse industries including medical equipment, デジタル製品, 自動車エレクトロニクス, and financial equipment. Dazhen’s export reach spans Japan, 韓国, 米国, メキシコ, イスラエル, インド, ロシア, and Southeast Asia. Their ISO 14001 and RoHS/Halogen-Free certifications make them ideal for environmentally regulated markets.
主な製品: マイクロモーター, magnetic heads, hydro-generators, stamped components, precision gear motors
最適な用途: 医療機器, デジタル製品, 自動車エレクトロニクス, IT equipment, financial equipment
6. 寧波トワールモーター株式会社, 株式会社.
位置: 寧波, 浙江省 | 認証: CCC, CE, RoHS
Twirl Motor focuses on small-diameter planetary gear motors (16mm–60mm) for applications requiring compact, precision drive solutions. Their use of Solidworks, プロ/E, and Photoview design software combined with CNC lathes, die-casting machines, CNCマシニングセンター, and engraving machines enables tight tolerances and consistent quality. Twirl’s niche focus on small planetary gear motors makes them an excellent partner for smart home devices and personal care appliances.
主な製品: Small planetary gear motors (16–60mm diameter)
最適な用途: スマートホームデバイス, パーソナルケア家電, compact precision drives
7. 金田インプ. & Exp Co., 株式会社.
Established: 2008 | 位置: 寧波, 浙江省 | 認証: ISO 9001
Jintian functions as both a manufacturer and international trade facilitator, offering brushless DC motors, ブラシ付きDCモーター, ステッピングモーター, and gearbox motors. Their ISO 9001 certification and focus on efficient procurement and supply chain solutions make them a good partner for buyers who need consolidated sourcing across multiple motor types. Jintian’s strength lies in streamlining the export process for international buyers unfamiliar with Chinese manufacturing logistics.
主な製品: BLDCモーター, DCモーター, ステッピングモーター, gearbox motors
最適な用途: Multi-product sourcing, supply chain consolidation, international trade
8. 寧波ハイテク区Tosion International Trade Co., 株式会社.
経験: 15+ 年 | 位置: 寧波, 浙江省 | 工場: 6 | 認証: ISO 9001
Tosion specializes in hydraulic motors and heavy-duty industrial drive components, including Poclain IAM/NHM/JMDG orbital motors, piston pumps and motors, vane pumps, and gear pumps. With six factories in Ningbo, they serve construction machinery, marine equipment, 冶金, 鉱業, and plastic machinery industries. Tosion is the go-to supplier for buyers needing hydraulic motor solutions rather than standard electric gear motors.
主な製品: Hydraulic motors, piston pumps, vane pumps, gear pumps and motors
最適な用途: Construction machinery, marine equipment, 鉱業, 冶金, plastic machinery
9. グリーンスカイ パワー カンパニー リミテッド
Established: 2010 (ロサンゼルス), relocated to Hangzhou 2011 | 位置: 杭州, 浙江省 | 認証: ISO 9001:2015, CE, エネルギー効率
Greensky Power is a vertically integrated gear motor manufacturer with four specialized subsidiaries: Jinhua Greensky (stepper motors and BLDC controllers), Shaoxing Fuhua Pump (マイクロACモーターとギアボックス), Sky Magnetic Tech (トルクセンサー), およびユナイテッドモーション株式会社. (North American pre- およびアフターサービス). 彼らの 2022 production capacity reached 1.5 million gear motors and 4 million controllers annually. Greensky’s R&D team includes 8 PhD-level engineers, and the company reinvests 10% of annual revenue into research and development.
Greensky’s product portfolio spans AC right-angle gear motors, 24V DC brushless gear motors, motor variators, stainless steel gearboxes, と single-phase motors. Their products comply with IEC 60034 efficiency standards and are tested individually at 100% before shipment. Greensky has exhibited at the Vietnam Industrial Expo, Germany SPS IPC Drives (2017, 2018, 2019), and Thailand Manufacturing Expo.
主な製品: AC/DC gear motors, worm gearboxes, helical gear motors, motor variators, stainless steel gearboxes, BLDCモーター, ステッピングモーター, コントローラー
最適な用途: 産業オートメーション, 電動自転車, 芝刈り機, BLDCポンプ, ペレットボイラー, solar tracking, 食品機械, コンベアシステム
10. Xuancheng Jianteng Intelligent Transmission Equipment Co., 株式会社.
位置: Xuancheng, Anhui | 認証: ISO 9001, CCC, CE, RoHS
Jianteng manufactures AC and DC gear motors spanning 6W–3600W, alongside NMRV 025–150 worm gear motors and stepper motors. Their integrated R&D, 製造, and manufacturing operation includes advanced machining centers focused on product stability and quality. Jianteng’s wide power range and comprehensive certification coverage (CCC, CE, RoHS) make them suitable for buyers needing compliance across multiple regulatory regimes.
主な製品: AC/DC gear motors (6W–3600W), NMRV worm gear motors, ステッピングモーター, 歯車加工
最適な用途: General industrial automation, multi-standard compliance requirements
11. Fangda 電気機械 (株), 株式会社.
Established: 1980 | 位置: 浙江省 | 規格: IEC compliant
と 45+ years of manufacturing experience, Fangda produces a comprehensive range of three-phase (Y/Y2/YS series) and single-phase (YC/YL/JY/YY series) 非同期モーター. Their specialized lines include YCT electromagnetic speed-regulating motors, YEJ electromagnetic brake motors, YVF2 variable-frequency motors, YB2 explosion-proof motors, and YD dual-speed motors. Fangda exports to 50+ countries across Eastern Europe, 南アメリカ, 東南アジア, 中東, and Africa. Their self-developed R&D center enables extensive motor customization.
主な製品: Three-phase/Single-phase asynchronous motors, ブレーキモーター, 防爆モーター, variable-frequency motors, dual-speed motors
最適な用途: General industrial motors, explosion-proof applications, speed-regulated drives, global multi-market export
12. 南京FASTECH電気株式会社.
Established: Factory built 2010 (20+ years engineering experience) | 位置: Nanjing, 江蘇省 | Export Ratio: ~95%
FASTECH is a high-export-ratio manufacturer with 95% of products shipped to the United States, オーストラリア, そしてヨーロッパ. Their product range includes AC/DC motors and gear motors, ブラシレスDCモーター, サーボモーター, ステッピングモーター, and linear actuators. FASTECH’s OEM clients include CLIPSAL, FASCO, and MARATHON (リーガル ベロイト グループ)—major Western brands that validate their quality standards. Their one-stop service from mold development to mass production is ideal for buyers needing custom-designed motor solutions.
主な製品: AC/DC motors and gear motors, BLDCモーター, サーボモーター, ステッピングモーター, リニアアクチュエータ
最適な用途: HVAC システム, ファン, パンプス, 家電製品; buyers requiring Western-brand OEM equivalent quality
13. 寧波デリーE&エムテック株式会社, 株式会社.
位置: 寧波, 浙江省 | 認証: CE, UL | Technology Source: ドイツ
Derry combines German engineering technology with Chinese manufacturing efficiency to produce PMDC motors, ブラシレスモーター, ステッピングモーター, AC/DC gear motors, 同期モーター, and brushless servo motors. Their CAD/CAM mold tooling center and in-house testing center enable full OEM/ODM service. Derry’s UL certification gives them access to the North American market, and their German technology heritage ensures precision engineering standards.
主な製品: PMDC motors, BLDCモーター, ステッピングモーター, AC/DC gear motors, 同期モーター, ブラシレスサーボモーター
最適な用途: 空調設備, パンプス, automatic transmission systems, 家電製品; North American (UL) and European (CE) 市場
14. Shanghai Pinnxun Electric Motor Co., 株式会社.
経験: 20+ 年 | 位置: 上海 | 規格: IEC compliant
Pinnxun offers one of the most comprehensive motor portfolios on this list, spanning low-voltage motors (Y/Y2 fan-pump motors, YX3 high-efficiency motors, YPT variable-frequency motors, YD/YDT dual-speed motors, YXF high-temperature fire-smoke exhaust motors, YR wound-rotor motors, YZR crane motors, NEMA標準モーター, GOST standard motors), 高電圧モーター (Y2 compact, Y/YKK squirrel-cage, YR/YRKK wound-rotor, YKS/YRKS water-cooled, T series large synchronous), 防爆モーター (YB/YB2, YBPT variable-frequency), およびモーター制御システム (control cabinets, ソフトスターター, エンコーダ, VFD).
主な製品: Low/high-voltage AC motors, 防爆モーター, crane motors, NEMA/GOST standard motors, motor control systems
最適な用途: Large-scale industrial projects, 発電所, 鉱業, crane/lifting, fire safety systems, multi-standard (IEC/NEMA/GOST) 要件
15. 深セン キンモア モーター カンパニー, 株式会社.
Established: 1998 | 位置: 深セン, Guangdong | 認証: ISO/TS 16949, ISO 9001, ISO 14001, CE, 到着, RoHS | Annual Capacity: 90 百万単位
Kinmore Motor is the highest-volume manufacturer on this list, with two factories producing 90 million units annually across 100+ motor series (8mm–80mm diameter). Their equipment is sourced from Japan, ドイツ, そして米国 (HEXAGON CMM, SODICK WEDM, WAHLI hobbing machines). Kinmore’s ISO/TS 16949 automotive certification is a significant differentiator, qualifying them as a Tier 1 automotive supplier. They serve automotive parts, 家電, 工業用ツール, パーソナルケア, security/locks, バルブ, and medical device markets.
主な製品: DCモーター, DCギアモーター, BLDCモーター, マイクロモーター (8–80mm), drive solutions
最適な用途: High-volume automotive applications, 家電, 医療機器, security systems
Summary Comparison of Top 5 メーカー
| メーカー | Key Strength | 最優秀製品部門 | Top Certifications | Min MOQ |
|---|---|---|---|---|
| グリーンスカイパワー | Full-system integration + NA support | AC/DC gear motors, BLDC | ISO 9001, CE | 1 ユニット (sample) |
| Kinmore Motor | Ultra-high volume (90M/yr) | Micro DC gear motors | ISO/TS 16949, CE, RoHS | 1,000 単位 |
| Xiamen Dazhen | Precision micro motors | Precision micro gear motors | ISO 9001, ISO 14001, RoHS | 500 単位 |
| Nanjing FASTECH | 95% export ratio, brand OEM | AC/DC gear motors, サーボ | IEC compliant | 500 単位 |
| Aokman Machinery | Heavy-duty industrial | Large industrial gearboxes | ISO 9001 | 1 ユニット |
Best Applications for Chinese Gear Motors
Chinese gear motor manufacturers serve virtually every industrial sector. Based on the supplier capabilities above, here are the primary application categories and the best-fit manufacturers for each:
1. Industrial Automation and Conveyor Systems
Helical and 直角ギアモーター are the workhorses of conveyor systems, 包装機, およびマテリアルハンドリング機器. Look for IE3+ efficiency, continuous-duty ratings (S1 per IEC 60034-1), and Class F insulation. Recommended suppliers: グリーンスカイパワー, Fangda Electric, Pinnxun Electric.
2. Robotics and Precision Positioning
Planetary gear motors with low backlash (≤6 arcmin) and high torque density are essential for robotic joints, AGV, and CNC equipment. BLDC motors paired with planetary gearboxes offer the best combination of precision and efficiency. Recommended suppliers: Xiamen Dazhen, Ningbo Twirl, Kinmore Motor.
3. Electric Vehicles and E-Mobility
BLDC gear motors with high power-to-weight ratios drive e-bikes, 電動スクーター, and small EVs. ISO/TS 16949 certification is critical for automotive applications. Recommended suppliers: Kinmore Motor (TS 16949 認定された), グリーンスカイパワー (e-bike specialist).
4. Food Processing and Packaging
Stainless steel gearboxes with IP65+ protection and food-grade lubricants are required for washdown environments. Worm gear motors with self-locking capability provide safety for lifting and tilting mechanisms. Recommended suppliers: グリーンスカイパワー, Xuancheng Jianteng.
5. HVAC and Pump Systems
IE3/IE4 high-efficiency motors with variable-frequency drive (VFD) compatibility reduce energy consumption in fans, ブロワー, そしてポンプ. の DOE estimates that motor-driven systems account for nearly half of all U.S. industrial electricity use. Recommended suppliers: Nanjing FASTECH, Ningbo Derry, Shanghai Pinnxun.
Step-by-Step Gear Motor Supplier Selection Guide
Follow this structured process to select the right Chinese gear motor manufacturer for your application:
ステップ 1: Define Technical Requirements
Document your required output torque (N・m), 出力速度 (回転数), 定格電力 (W or kW), 電圧 (V), デューティサイクル (IEC に基づく S1 ～ S10 60034-1), および環境条件 (温度, 湿度, IP等級). Calculate the required gear ratio using i = n_モーター / n_output and verify that the output torque meets your application’s peak load with a 1.5× safety factor.
ステップ 2: Shortlist 3–5 Suppliers
From the list above, select manufacturers whose product categories match your requirements. Prioritize those with relevant certifications (CE for Europe, UL for North America, ISO/TS 16949 for automotive) and demonstrated export experience to your target market.
ステップ 3: Request Technical Datasheets
Ask each supplier for complete datasheets including: 定格トルク, 定格速度, gear ratio options, 効率クラス (IE1–IE4), insulation class, IP等級, 騒音レベル (dB), 重さ, and dimensional drawings. Cross-check torque claims using the formula T_出力 = (9550 × P × η) / n.
4: Evaluate Sample Quality
Order 3–5 samples for testing. Measure actual torque output using a dynamometer, verify noise levels in a soundproof chamber, and run a 500-hour continuous-duty test to validate thermal performance. Check that measured efficiency falls within the IEC 60034-2-1 tolerance band (±15% of (1-または) for motors ≤150 kW).
ステップ 5: Audit Manufacturing Quality
If your annual volume exceeds 10,000 単位, conduct a factory audit (either in-person or via third-party inspection). Verify ISO 9001 ドキュメント, check incoming material inspection records, review final test procedures (100% testing is standard at top-tier suppliers like Greensky Power), and inspect calibration records for test equipment.
ステップ 6: Negotiate Commercial Terms
Standard MOQ for Chinese gear motor manufacturers ranges from 100–1,000 units, but most suppliers offer sample orders (1–10 units) at a premium. Negotiate payment terms (30% デポジット, 70% before shipment is standard), lead time (typically 25–35 days for standard products, 45–60 days for custom designs), and warranty terms (1 year minimum is industry standard; 2–3 years for premium suppliers).
Common Sourcing and Engineering Mistakes
B2B buyers frequently make these avoidable errors when sourcing gear motors from China:
| 間違い | インパクト | 正しいアプローチ |
|---|---|---|
| Selecting motor by rated power only, ignoring torque-speed curve | Motor cannot deliver required torque at operating speed | Always request the full torque-speed curve and verify torque at your application’s operating RPM |
| Overlooking service factor differences (ありません 1.15 vs IEC 1.0) | IEC motor overheats under continuous peak load | Size IEC motors to actual load without derating; add 15% margin if switching from NEMA spec |
| Ignoring gearbox efficiency losses in total system efficiency | System efficiency 15–25% lower than expected | Calculate η_total = η_motor × η_gearbox; account for 3–10% loss per gear stage |
| Choosing worm gears for high-duty-cycle applications | Excessive heat generation, premature wear, efficiency as low as 50% | Use helical or planetary gears for continuous duty; reserve worm gears for intermittent or self-locking applications |
| Not specifying insulation class for high-ambient environments | Winding insulation failure at ambient >40℃ | Specify Class H (180℃) for ambient temperatures above 50°C; derate motor by 1% per 100m above 1,000m altitude |
| Skip sample testing for large orders | Mass-production defects discovered after full shipment | Always test 3–5 samples with dynamometer and thermal testing before placing volume orders |
Gear Motor Troubleshooting Guide
| 問題 | 考えられる原因 | 解決 |
|---|---|---|
| Excessive noise and vibration | Worn gear teeth, misaligned coupling, or bearing failure | Inspect gear mesh for wear patterns; check shaft alignment with dial indicator; replace bearings per SKF L10h calculation |
| Output torque lower than rated | Insufficient motor power, gearbox efficiency degradation, or incorrect gear ratio | Verify motor voltage and current; measure actual gearbox efficiency; recalculate gear ratio using i = n_motor / n_output |
| モーターの過熱 (thermal trip) | 過負荷, inadequate ventilation, or wrong insulation class for ambient | Measure actual load current vs. 銘板; verify ambient temperature ≤40°C; upgrade to Class H insulation if needed |
| Gearbox oil leakage | Worn seals, overfilling, or breather vent blockage | Replace shaft seals; fill oil to specified level (sight glass); clean or replace breather vent |
| Output shaft won’t turn (motor runs) | Gear tooth breakage, seized bearing, or foreign object in gear train | Disassemble gearbox; inspect for broken teeth and bearing condition; flush and relubricate |
| Motor starts but gearbox output is erratic | Keyway wear, loose coupling, or intermittent gear engagement | Inspect key and keyway for wear; tighten coupling bolts; check for gear tooth damage |
| Excessive current draw at startup | High starting torque requirement or insufficient gear ratio reduction | Use a motor with higher starting torque (NEMA Design C) or increase gear ratio; consider VFD soft-start |
| ベアリングの早期故障 | Inadequate lubrication, contamination, or overloaded bearing | Follow relubrication intervals per manufacturer; verify bearing load using SKF L10h formula; upgrade to sealed bearings if contamination is present |
よくある質問
What is the difference between a gear motor and a regular motor?
A regular electric motor produces high rotational speed (1,400–3,500 RPM for AC, 3,000–10,000 RPM for DC) with relatively low torque. A gear motor integrates a gearbox that reduces the output speed while proportionally increasing torque. 例えば, ある 1.5 kW motor at 1,400 RPM produces approximately 10.2 N·m of torque; と 50:1 ギアボックス (95% 効率), the gear motor outputs 28 RPM at 485 N·m—nearly 48× the torque at 1/50th the speed.
Which Chinese gear motor manufacturer offers the best customization?
For full OEM/ODM customization, Greensky Power and Nanjing FASTECH stand out. Greensky offers integrated motor + コントローラ + sensor solutions with 8 PhD-level engineers and 10% revenue reinvestment in R&D. FASTECH provides one-stop service from mold development to mass production and serves as OEM for Western brands including Regal Beloit Group’s MARATHON line.
What certifications should I look for when importing gear motors from China?
At minimum, require ISO 9001 (品質管理), CE (European market access), およびRoHS (hazardous substance compliance). For North America, look for UL certification. For automotive applications, ISO/TS 16949 is mandatory. For environmentally regulated markets, ISO 14001 is a plus. For explosion-proof applications (鉱業, 化学), ATEX or IECEx certification is required. All reputable manufacturers should also comply with IEC 60034 efficiency standards and NEMA MG 1 if exporting to the United States.
How much does a gear motor cost from Chinese suppliers?
Pricing varies widely by type and power rating. Small DC spur gear motors (6–12mm) start at $2.80–$4.80 per unit (Moq 100). Mid-range AC gear motors (25W–370W) range from $20–$100. Industrial planetary gear motors (500W–3kW) cost $150–$800. Large industrial gearboxes (10kW+) can exceed $2,000. Chinese gear motors typically cost 30–50% less than European equivalents (SEW-ユーロドライブ, シーメンス, Nord) while meeting the same IEC efficiency standards.
What is the typical lead time for gear motors from China?
標準 (catalog) gear motors typically ship in 25–35 days. Custom-designed gear motors with modified shafts, mounting flanges, or gear ratios require 45–60 days. Suppliers in Guangdong and Zhejiang industrial clusters can often expedite urgent orders within 72 hours for an additional fee. Always confirm lead times in writing and build a 15% buffer into your production schedule.
Are Chinese gear motors as reliable as European or American brands?
When sourced from reputable manufacturers with proper certifications (ISO 9001, CE, UL), Chinese gear motors achieve comparable reliability to Western brands. The key is to verify compliance with IEC 60034 およびNEMA MG 1 標準, request 100% 個別のテスト (standard at top-tier suppliers like Greensky Power and Kinmore Motor), and conduct sample testing before volume orders. の IEA reports that motor system efficiency improvements of 10–15% are achievable globally, and Chinese manufacturers are increasingly producing IE4-class motors that match or exceed Western efficiency benchmarks.
グリーンスカイパワーを選ぶ理由?
Among the 15 manufacturers profiled above, Greensky Power occupies a unique position in the Chinese gear motor market. Here is what differentiates Greensky from other suppliers:
1. Vertically Integrated Manufacturing: Greensky operates four specialized subsidiaries covering stepper motors and BLDC controllers (Jinhua Greensky), マイクロACモーターとギアボックス (Shaoxing Fuhua Pump), トルクセンサー (Sky Magnetic Tech), and North American service (ユナイテッドモーション株式会社). This vertical integration means buyers can source complete motion systems—including motors, ギアボックス, コントローラー, and sensors—from a single supplier, reducing integration risk and lead time.
2. Engineering-Driven Culture: と 8 PhD-level engineers and 10% of annual revenue reinvested in R&D, Greensky approaches motor manufacturing from an engineering-first perspective rather than a pure cost-optimization model. Their advanced testing facilities include high-low temperature chambers, 三次元測定機 (三次元測定機), 静かな部屋, and dynamometers—equipment that many competing Chinese manufacturers lack.
3. 100% Individual Product Testing: Unlike manufacturers that perform batch sampling, Greensky tests every single motor before shipment. これ 100% inspection rate ensures consistent quality and dramatically reduces the risk of receiving defective units in volume orders.
4. International Standards Compliance: All Greensky products are manufactured in compliance with IEC 60034 efficiency standards, CE certification, およびISO 9001:2015 品質管理. 彼らの AC および DC モーター meet NEMA MG 1 performance benchmarks, and their stainless steel gearboxes are designed for food-grade and pharmaceutical washdown environments.
5. Global Trade Show Presence and Local Support: Greensky has exhibited at the Vietnam Industrial Expo, Germany SPS IPC Drives (2017, 2018, 2019), and Thailand Manufacturing Expo. For North American customers, ユナイテッドモーション株式会社. provides local technical response, サンプルテストの支援, delivery coordination, and after-sales warranty support—eliminating the communication and timezone barriers that plague many China sourcing relationships.
6. 生産規模: と 1.5 million gear motors and 4 million controllers produced annually, Greensky has the capacity to serve both low-volume custom projects and high-volume OEM contracts. Their product range spans AC right-angle gear motors, 24V DC brushless gear motors, motor variators, ベベルギアボックス, と single-phase motors—covering applications from industrial automation to high-torque lifting systems.
To request a quote or discuss your gear motor requirements, contact Greensky Power’s engineering team.
参照
- 国際電気標準会議 (IEC). IEC 60034-30-1:2014 — Efficiency classes of line operated AC motors. Available at: https://webstore.iec.ch/publication/67641
- 全国電気製造者協会 (ありません). MGはありません 1-2024 — Motors and Generators. Available at: https://www.nema.org/standards/view/motors-and-generators
- 私たち. エネルギー省 (エネルギー省). Energy Conservation Standards for Electric Motors — Direct Final Rule (2023). Available at: https://www.energy.gov/sites/default/files/2023-05/em-ecs-dfr.pdf
- 国際エネルギー機関 (IEA). Walking the Torque: Energy-Efficiency Policy Opportunities for Electric Motor-Driven Systems. Available at: https://www.iea.org/reports/walking-the-torque
- SKFグループ. Bearing Rating Life — Size Selection Based on Rating Life. Available at: https://www.skf.com/africa/en/products/bearings-units-housings/principles/bearing-selection-process/bearing-size/size-selection-based-on-rating-life/bearing-rating-life/
- シーメンスAG. SIMOGEAR Geared Motors — Helical/Helical Bevel Gear Units Instructions. Available at: https://support.industry.siemens.com/cs/attachments/28679030/1FK7G_BE_0305_de_en_fr_it_es_sv.pdf
- ABB. 理解します 2027 DOE Motor Standards. Available at: https://new.abb.com/news/detail/132268/understanding-the-2027-doe-motor-standards
- IEC 60034-1:2022. 回転電機 - 一部 1: 評価と性能 (insulation classes and temperature limits). Available at: https://webstore.iec.ch/publication/66796
- IEEE. IEEE 112-2017 — Standard Test Procedure for Polyphase Induction Motors and Generators. Available at: https://standards.ieee.org/ieee/112/6470/
- Appliance Standards Awareness Project (ASAP). Electric Motors — Federal Standards and Timeline. Available at: https://www.appliance-standards.org/product/electric-motors
