Guang Dong Lihua Mechatronics Co.,Ltd
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DC 3V Gear Motor 8RPM Speed Low Noise Rotary Box Plastic Box Watch Winder Motors
500 Plastic Gear Motor Specifications:
Voltage: 3V
Speed: 9rpm
Gear Box Size: 68mm (L)*50.5mm (D)
Output shaft: diameter 7mm flat position thickness 5mm long 9mm shaft elongation
No-load Current:40ma
Load Current:60ma (@3V )
No-load Speed:7.0士0.5rpm/8.0士0.5rpm
Torque:>2.3kg.cm
Operating noise:≤42dB. Quiet enough that will not affect your sleep and daily life.
Stall Current:≤150ma
Gearbox can withstand maximum damage
Torque Test:≤7.2kg.cm Speed:≤12rpm
Wire Cable Length:350mm or 500mm
Weight:50g
500 Plastic DC Motor Gear Motor Reducing Engine Drawing & Datasheet
Note:
1. Due to the light and screen difference, the item's color may be slightly different from the pictures.
2. Please allow 1mm-2mm differences due to manual measurement.
Type1:
Mute 500 Plastic Geared Motor 500 Series
Rated Volt:3V
No-load Current:40ma
Load Current:60ma
No-load Speed:7.0±0.5rpm
Torque:≥2.3kg.cm
Working Noise:≤42dB
Stall Current:≤150ma
Type2
Mute 500 Plastic Geared Motor 500 Series
Rated Volt:3V
No-load Current:40ma
Load Current:60ma
No-load Speed:8.0±0.5rpm
Torque:≥2.3kg.cm
Working Noise:≤42dB
Stall Current:≤150ma
Specific Application of the 500 Plastic Gear Motor in Mechanical Watch Winders
The 500-type 3V plastic gear motor, with its low noise, stable speed, and compact design, serves as an ideal driving core for mechanical watch winders. Its specific applications are as follows:
1. Power and Speed Adaptation
Precise Speed (8-9 RPM): Watch winding requires simulating the natural motion of wearing a watch, typically demanding 650-1200 rotations per day (varies by brand). The motor reduces speed to 8-9 RPM (approximately 10,368-12,960 rotations per day) through its gearbox, and when paired with intermittent programming, it precisely meets the winding needs of mechanical watches without overwinding the mainspring.
Low-Voltage Safe Operation (3V): Compatible with USB or lithium battery power, ensuring stable and safe long-term operation.
2. Quiet Operation and Durability
Noise Control (≤42dB): The gearbox uses engineering plastics and precision meshing, operating almost silently to avoid disturbance during sleep or in quiet environments.
High Torque (>2.3 kg·cm): Capable of driving multi-watch rotors (e.g., dual or quadruple watch holders) smoothly, even under varying loads (e.g., different watch resistance levels).
3. Mechanical Adaptation and Installation
Output Shaft Design (7mm Diameter + Flat Side): Directly connects to the watch winder’s turntable or linkage mechanism, secured by a flat side to prevent slippage and ensure reliable transmission.
Compact Gearbox (68×50.5mm): Easily fits into the limited internal space of watch winders, with 350mm/500mm cables allowing flexible wiring.
4. Protection and Longevity Optimization
Overload Protection: The motor withstands momentary torque up to ≤7.2 kg·cm (e.g., if the turntable jams), preventing burnout, while its low power consumption (60mA under load) extends battery life.
Long-Term Durability: The plastic gearbox reduces weight (50g) and resists wear, making it suitable for 24/7 intermittent operation with a lifespan of thousands of hours.
Conclusion: The 500-type motor, with its low-speed high-torque, silent operation, and modular design, is a key component in watch winders, fulfilling the "wearing simulation" function while balancing watch maintenance needs and user experience.