3-Blade Propeller for RS-555 Motor - High Airflow Plastic Fan

Specification	Details
Blade Count	3 Blades
Compatible Motor	RS-550 / RS-555 Series
Bore Diameter	~3.17mm (Press-fit for 555 shafts)
Material	Durable ABS / Polypropylene Plastic
Direction	Standard CW/CCW (Universal Profile)
Weight	~10 - 15 Grams

Price

₹ 25.42

(Tax included)

बारकोड: 72551295

Product Description

The 3-Blade Fan for 555 DC Motor is a lightweight, high-velocity propeller specifically molded to fit the 3.17mm output shaft of RS-555 series motors. Designed for maximum air displacement with minimal rotational drag, this fan is an essential component for DIY portable fans, localized cooling systems, and science fair projects. The aerodynamic curvature of the three blades is optimized to provide a concentrated stream of air, making it effective for cooling electronic components or creating small-scale wind tunnels. Its rigid plastic construction ensures that the blades maintain their shape even at the high RPMs typically generated by 12V-24V DC motors.

Key Features

Precision Press-Fit: Engineered with a center hub designed to grip the standard 3.17mm knurled or smooth shafts of 500-series motors without needing set screws.
Balanced Aerodynamics: The three-blade design offers a superior balance between torque requirement and airflow volume, preventing the motor from over-straining.
Impact Resistant Material: Manufactured from high-grade plastic that resists cracking if the fan accidentally contacts an object while spinning.
Universal Application: Ideal for custom cooling rigs, vacuum cleaner prototypes, or as a replacement blade for battery-operated handheld fans.
Low Noise Profile: The smooth surface finish and blade geometry help reduce the "whirring" noise caused by air turbulence at high speeds.

Technical Details

Outer Diameter: Sized to provide optimal clearance for standard 555 motor brackets.
Hub Depth: Deep enough to ensure a stable, wobble-free connection to the motor shaft.
Color: Typically available in standard industrial colors (Black/Blue/Red).

Prototyping and Engineering Tips from Robogears

Secure Mounting: While the fan is a press-fit, high-RPM 555 motors can sometimes cause the fan to slip over time due to vibration. If you find the fan is loose, a tiny drop of Cyanoacrylate (Instant Glue) inside the hub before pressing it onto the shaft will create a permanent bond.
Direction of Airflow: The direction the air blows depends on the motor's rotation. If the fan is pushing air backward instead of pulling it forward, simply swap the positive and negative wires on your DC motor to reverse the rotation.
Safety Enclosure: At 12V, a 555 motor can spin this fan at several thousand RPM. Always design a wire mesh or 3D-printed shroud around the fan to prevent fingers or loose wires from coming into contact with the spinning blades.
Current Draw Impact: Adding a fan creates "aerodynamic load" on the motor. Monitor your motor's temperature; if it becomes too hot to touch, you may need to reduce the input voltage or use a PWM speed controller to lower the RPM.
Static Balancing: If your project vibrates excessively, the fan might be slightly off-balance. You can "trim" the heavy blade by sanding the edge very slightly or adding a small piece of tape to the lighter blade until the vibration stops.

Package Includes

1 x 3-Blade Fan for 555 DC Motor

Disclaimer: This fan spins at high speeds and can cause injury if handled improperly. Always wear eye protection during high-speed testing. Ensure the motor is securely mounted to a stable base before attaching and powering the fan. Not intended for use by unsupervised children.