370 Worm Self-Locking Gear Motor — 24mm High-Torque Worm Drive

## Product Title # 370 Worm Self-Locking Gear Motor — 24mm High-Torque Worm Drive **Bigger. Stronger. Self-Locking.** The 370 Worm Self-Locking Gear Motor delivers 5–30 kg·cm of driving torque with inherent mechanical self-locking — the output cannot be back-driven, even with power removed. Engineered for DC fast charging gun actuators, industrial valve controls, and high-security locking mechanisms where higher torque and fail-safe holding are required. The big brother to the N20 worm drive. [CTA: Request Quote →] [CTA: Request Sample →] --- ## Key Specifications | Property | Specification | |:---|:---| | **Motor Diameter** | 24mm (370 motor) | | **Motor Type** | Brushed DC, permanent magnet | | **Gear Type** | Worm gear, metal housing, **self-locking** | | **Self-Locking Force** | 6 – 36 kg·cm (back-drive resistant) | | **Reduction Ratios** | 100:1 / 200:1 / 500:1 / 1000:1 | | **Rated Torque** | 5 – 30 kg·cm (ratio-dependent) | | **Rated Speed** | 5 – 100 RPM (ratio-dependent) | | **Noise Level** | <60 dB (@30cm) | | **No-Load Current** | <150 mA (12V) | | **Stall Current** | <800 mA (12V) | | **Voltage Options** | 12V / 24V DC | | **Output Shaft** | 4mm diameter (standard), customizable | | **Mounting** | M3 screw holes, custom bracket available | | **Materials** | Metal worm + metal gear, bronze bushings | | **Connector** | Soldered leads (standard) / JST/Molex (custom) | | **Weight** | ~35g | | **Operating Temperature** | -30°C to +85°C | | **MOQ** | 100 units (samples: 3-5 units) | | **Lead Time** | Samples: 1 week / Production: 2-4 weeks | --- ## 370 vs N20: When to Go Bigger | Dimension | N20 Worm (12mm) | 370 Worm (24mm) | |:---|:---|:---| | Motor Diameter | 12mm | **24mm** | | Rated Torque | 0.5 – 2.0 kg·cm | **5 – 30 kg·cm** | | Self-Locking Force | Up to 36 kg·cm | **6 – 36 kg·cm** | | Typical Application | AC charging guns, deadbolts | **DC fast charging, industrial** | | Best For | Compact spaces, lower force | **High force, heavy-duty cycles** | | FOB Price (1K+) | $4.50 | **$6.00** | > 💡 **Rule of thumb:** If your locking force requirement exceeds 10 kg·cm, choose the 370 over the N20. --- ## Performance Data ### Torque & Speed by Reduction Ratio (12V DC) | Ratio | No-Load Speed | Rated Speed | Rated Torque | Self-Locking Force | Typical Application | |:---|:---|:---|:---|:---|:---| | 100:1 | 100 RPM | 75 RPM | 5 kg·cm | 6 kg·cm | General purpose actuator | | 200:1 | 50 RPM | 38 RPM | 10 kg·cm | 12 kg·cm | **DC charging gun standard** | | 500:1 | 20 RPM | 15 RPM | 20 kg·cm | 24 kg·cm | Industrial valve actuator | | 1000:1 | 10 RPM | 8 RPM | 30 kg·cm | 36 kg·cm | Heavy-duty gate/damper lock | > 📊 [Download Full Performance Curves (PDF)] --- ## Motor Options | Option | Voltage | No-Load Speed (before gearbox) | No-Load Current | Best For | |:---|:---|:---|:---|:---| | **12V DC** | 12.0V | 8,000 RPM | <150 mA | Passenger vehicle chargers, general 12V systems | | **24V DC** | 24.0V | 10,000 RPM | <120 mA | **Standard** — DC fast chargers, commercial/fleet, industrial | --- ## Assembly Options — Turnkey Actuator For DC charging gun manufacturers, we offer pre-assembled 370 motor + micro switch + housing assemblies: | Assembly | Components | FOB (1K+) | |:---|:---|:---| | **ASM-02 Basic** | 370 Worm Motor + IP67 Micro Switch | $18.00 | | **ASM-02 Encoder** | 370 Worm Motor + IP67 Micro Switch + Hall Encoder | $22.00 | | **ASM-02 Full** | 370 Worm Motor + IP67 Switch + Encoder + Housing + Connector | $26.00 | > 💡 One part number. 100% tested. Reduces assembly complexity for DC charging gun manufacturers. --- ## Mechanical Drawing [370 Worm Self-Locking Gear Motor — Dimensional Drawing with callouts] **Key Dimensions (200:1, 12V):** - Motor body: Ø24mm × 45mm (L) - Gearbox: 18mm × 32mm × 16mm - Output shaft: Ø4mm × 10mm (standard) - Total length: ~65mm - Output axis: 90° to motor axis (worm gear orientation) - Mounting holes: M3, 14mm spacing Downloads: - 📐 [2D Drawing (PDF)] - 🧊 [3D Model (STEP/IGS)] - 📊 [Full Performance Datasheet (PDF)] --- ## Applications | Industry | Application | Why 370 Worm Self-Lock | |:---|:---|:---| | 🔌 EV Charging | DC CCS1/CCS2 fast charging gun electronic lock | Higher locking force for DC connectors, fail-safe self-locking | | 🔌 EV Charging | GB/T DC charging gun (China market) | GB/T 20234.3 compliant, 24V option | | 🏭 Industrial | Valve actuators, damper controls, gate locks | Holds position without continuous power, high torque | | 🔐 Security | High-security vault locks, gun safes, ATM mechanisms | Cannot be back-driven — physical anti-tamper | | 🚗 Automotive | Heavy-duty door locks, tailgate latches, parking locks | Automotive temp range, 12V/24V options | | ⚡ Energy | Solar tracker actuators, wind turbine pitch controls | Holds position under wind load without power | | 🏗️ Construction | Automatic door operators, barrier gate mechanisms | High torque for heavy moving elements | --- ## Part of These Solutions - [EV Charging Gun Actuator Solution →](ev-charging-gun-actuator-solution) — DC fast charging CCS1/CCS2 and GB/T DC - [Industrial Automation Micro Drive →](industrial-automation-drive) — Valve and actuator applications - [Smart Lock Micro Motor Solution →](smart-lock-micro-motor-solution) — Heavy-duty security locks --- ## Customization Options | Option | Description | MOQ Impact | |:---|:---|:---| | **Output Shaft** | Custom diameter (4-6mm), length, flat, D-cut, keyway, cam profile | Standard on all orders | | **Voltage Winding** | Custom winding for 5V, 9V, 36V or specific speed/torque requirements | 1,000 units | | **Gear Ratio** | Custom ratios between standard steps | 2,000 units | | **Encoder** | Hall 7/12 PPR, magnetic up to 512 CPR | 500 units | | **Micro Switch Integration** | IP67 limit switch, custom switching position | 1,000 units | | **Housing** | Custom aluminum/PBT housing, sealed to IP65/IP67 | 2,000 units | | **Connector** | Sealed automotive connector (AMP/TE, Deutsch, JST) | 1,000 units | | **Temperature Grade** | -40°C low-temp grease, +105°C high-temp winding | 1,000 units | | **Branding** | Custom label, Yukun or neutral | 5,000 units | --- ## Quality & Testing - ✅ Every motor 100% load-tested before shipment - ✅ Self-locking force verified per batch - ✅ Material traceability (full batch records) - ✅ RoHS & REACH compliant - ✅ ISO 9001:2015 certified factory - ✅ IATF 16949 options for automotive programs - ✅ Temperature chamber validated: -30°C to +85°C - ✅ Salt spray: 48-96h (ISO 9227) - ✅ IP67 validation available for integrated switch assemblies - ✅ 200K+ cycle life testing available --- ## Pricing & Lead Time | Quantity | Unit Price (FOB Shenzhen) | Lead Time | |:---|:---|:---| | Sample (3-5 units) | $12.00/unit | 1 week | | Trial (100-500 units) | $8.00/unit | 2-3 weeks | | Batch (1K-5K units) | **$6.00/unit** | 3-4 weeks | | Volume (10K+ units) | Contact us | 4-6 weeks | > 💡 Encoder version (370-E01) from $8.50. Assembly (ASM-02) from $18.00. Sample fee credited against first production order. --- ## Frequently Asked Questions **Q: When should I choose the 370 over the N20 worm motor?** A: Choose the 370 when your application requires more than 10 kg·cm of driving torque or 12 kg·cm of holding force. The N20 is ideal for AC charging guns and compact locks. The 370 is for DC fast charging and industrial applications where brute force matters. **Q: Can the 370 run on 12V vehicle power directly?** A: Yes. The 12V winding is designed for direct automotive 12V electrical systems. Nominal 12V (9-16V range), with transient protection available. The 24V option is for commercial vehicles and industrial DC systems. **Q: Is the self-locking force really 36 kg·cm?** A: Yes, at 1000:1 reduction. The self-locking force scales with reduction ratio — higher ratio = higher holding force. Every batch is tested for back-drive resistance at the rated specification. **Q: What's the operating temperature range?** A: Standard: -30°C to +85°C. This covers outdoor charging stations in most climates. For extreme cold (Nordic regions) or extreme heat (desert/Middle East), we offer special grease and winding configurations. **Q: How does this integrate with a charging gun handle?** A: The motor is typically mounted inside the charging gun handle or in the connector body. We provide 3D CAD models for your integration design. The ASM-02 assembly includes mounting features for direct installation. --- [CTA Button: Request Quote for 370 Worm Self-Lock →] [CTA Button: Request Assembly Sample →] --- > **Yukun** — Your Global Micro Motor Sourcing & Solutions Platform > 📧 [email] | 📱 [WhatsApp] | 🏭 Shenzhen, China > *20+ Years Manufacturing | ISO 9001 & IATF 16949 | 1-Week Samples | FOB from $6.00*