RS775 DC Motor 12V 21000RPM High Speed Double Bearing Copper Motor
৳ 520.00
- High Speed DC Motor
- 12V Copper Motor and 21000RPM
- Made in China
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
Extreme Speed: Delivers up to 21,000 RPM at 12V, making it one of the fastest motors in the 775 class.
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).
High Torque: Generates substantial torque capable of driving drill bits, saw blades, and sanding discs without stalling easily.
Pure Copper Windings: Ensures better conductivity, lower heat generation, and higher power efficiency.
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
1x RS775 DC 12V Motor (21,000 RPM, Double Bearing)
