520 Worm Self-Locking Gear Motor — 35mm Heavy-Duty Worm Drive

# 520 Worm Self-Locking Gear Motor — 35mm Heavy-Duty Worm Drive **Maximum Torque. Industrial Grade. Self-Locking.** — The largest in our worm drive family. For industrial DC chargers, heavy-duty valve actuators, and applications where brute force is the requirement. ## Key Specifications | Property | Specification | |:---|:---| | Motor Diameter | 35mm (520 motor) | | Gear Type | Worm gear, self-locking, reinforced | | Self-Locking Force | 18 – 60 kg·cm | | Rated Torque | 15 – 50 kg·cm | | Reduction Ratios | 100:1 / 200:1 / 500:1 | | Noise Level | <65 dB (@30cm) | | Voltage Options | 24V DC | | Operating Temperature | -30°C to +85°C | | Weight | ~85g | | MOQ | 100 units (samples: 3-5) | ## Performance (24V DC) | Ratio | Rated Speed | Rated Torque | Self-Locking Force | Typical Application | |:---|:---|:---|:---|:---| | 100:1 | 75 RPM | 15 kg·cm | 18 kg·cm | General industrial | | 200:1 | 38 RPM | 25 kg·cm | 30 kg·cm | Heavy-duty actuator | | 500:1 | 15 RPM | 50 kg·cm | 60 kg·cm | Maximum force lock | ## The Worm Drive Family | Model | Motor Size | Rated Torque | Self-Locking Force | FOB (1K+) | |:---|:---|:---|:---|:---| | **N20 Worm** | 12mm | 0.5-2.0 kg·cm | Up to 36 kg·cm | $4.50 | | **370 Worm** | 24mm | 5-30 kg·cm | 6-36 kg·cm | $6.00 | | **520 Worm** | 35mm | 15-50 kg·cm | 18-60 kg·cm | **$12.00** | ## Pricing (FOB Shenzhen) | Quantity | Unit Price | Lead Time | |:---|:---|:---| | Sample (3-5) | $24.00/unit | 1 week | | Trial (100-500) | $16.00/unit | 2-3 weeks | | Batch (1K-5K) | **$12.00/unit** | 3-4 weeks | [Request Quote →](/contact) [Request Sample →](/contact)