Experience industrial-grade power with the RS775 DC 12V High-Speed Motor. Unlike standard hobby motors, this “Double Bearing” edition is engineered for heavy-duty applications requiring extreme speed and torque. With a blistering top speed of 21,000 RPM, it is the ultimate choice for building DIY drills, table saws, CNC spindles, and lawnmowers.
Built with a pure copper coil and a built-in cooling fan, this motor maintains high efficiency even under load. The inclusion of dual ball bearings (front and rear) ensures smooth, vibration-free rotation and significantly extends the motor’s lifespan compared to cheaper bushing-based alternatives.
🚀 Key Features & Benefits
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Extreme Speed: Delivers up to 21,000 RPM at 12V, making it one of the fastest motors in the 775 class.
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Double Ball Bearing Design: Features ball bearings on both the front and rear shafts. This reduces friction, minimises noise, and prevents the shaft from “wobbling” under high lateral loads (crucial for cutting and drilling).
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High Torque: Generates substantial torque capable of driving drill bits, saw blades, and sanding discs without stalling easily.
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Pure Copper Windings: Ensures better conductivity, lower heat generation, and higher power efficiency.
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Self-Cooling: Equipped with an integrated cooling fan that forces air through the metal casing to regulate temperature during continuous operation.
Technical Specifications
| Feature | Specification |
| Model | RS-775 (High Speed Edition) |
| Nominal Voltage | 12V DC |
| Speed (No Load) | ~21,000 RPM |
| Shaft Diameter | 5mm (Standard Round Shaft) |
| Motor Diameter | 42mm |
| Motor Length | 66.5mm (Body only) |
| Mounting Holes | 2x M4 Threaded Holes |
| Mounting Pitch | 29mm apart |
| Current Draw | High Power (Requires >5A supply) |
| Bearing Type | Dual Ball Bearings (Front & Rear) |
Power Supply Guide (Important for Users)
This is a high-power motor. Standard 9V batteries or small 1A/2A wall adapters will not work.
- Minimum Requirement: Use a power supply rated for at least 12V 5A or higher.
- Recommended: A 12V 10A Switch Mode Power Supply (SMPS) or a high-discharge 3S LiPo battery is ideal to handle the startup current surge.
💡 Common Applications
- DIY Power Tools: Cordless drills, mini table saws, and chop saws.
- CNC Machines: Spindle motors for PCB milling and engraving.
- Robotics: Combat robots and high-speed rovers.
- Garden Tools: Electric lawnmowers and trimmers.
📦 Package Contents
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1x RS775 DC 12V Motor (21,000 RPM, Double Bearing)
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