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RF-300CA Long Shaft DC Motor 3V-6V High Torque Low Noise DVD Spindle Motor

Component	Specification
Model	RF-300CA Series
Operating Voltage	1.5V to 6.0V DC
Rated Voltage	3.0V DC
No-Load Speed	3,000 to 4,500 RPM
No-Load Current	20mA to 35mA
Shaft Type	Extended Straight Shaft
Shaft Diameter	2.0 mm
Motor Diameter	24.4 mm

Price

🚚 Ships within 24 Hours
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₹ 50.85

(Tax included)

Barcode: 96741

Product Description The RF-300CA is a highly stable, low-noise DC motor originally designed as a spindle motor for CD and DVD players. Its defining feature is the extended long shaft, which provides extra clearance for mounting pulleys, gears, or fan blades. This motor is prized by hobbyists for its extremely low power consumption and smooth rotation, making it perfect for solar-powered projects, precision optical experiments, and miniature wind turbines.

Key Features

Extended long shaft for versatile mechanical coupling and DIY mounting.
Low starting current—ideal for running directly off small solar panels.
Silent operation with minimal vibration for sensitive electronic projects.
Compact pancake-style housing for low-profile installations.
High-quality internal brushes for stable speed regulation.

Technical Details

Operating Range: 1.5V – 6.0V DC
Speed at 3V: ~3500 RPM
Stall Torque: Approx. 10-12 g-cm (at 3V)
Shaft Length: Approx. 10mm to 15mm (Extended version)
Motor Height: 12.3 mm
Mounting Holes: 2 x M2 Threaded holes (approx. 17mm apart)
Weight: Approx. 22g
Housing Material: Galvanized Steel

Prototyping and Engineering Tips from Robogears

Solar Compatibility: This is one of the best motors for solar education kits. It can often start spinning with as little as 0.5V to 1.0V, making it a great match for 2V or 3V solar cells.
Speed Control: If you need a consistent speed, these motors respond very linearly to voltage changes. A simple LM317 voltage regulator or a low-power PWM controller works perfectly.
Shaft Care: The 2.0mm shaft is precision-ground. Avoid using excessive force (hammering) when pressing on gears or pulleys, as this can damage the internal thrust bearings and increase noise.
Mounting: Use the M2 threaded holes on the front face for secure mounting. Ensure the screws are not too long, as they might contact the internal windings and short-circuit the motor.

Package Includes

1 x RF-300CA Long Shaft DC Motor

Disclaimer Product images are shown for illustrative purposes only and may vary from the actual product due to manufacturing changes, lighting conditions during photography, or batch updates. While we strive for accuracy, technical specifications are subject to change by the manufacturer without prior notice. Please ensure your circuit design accounts for current surges and thermal management. Extreme care should be taken when operating at high RPMs to avoid injury or damage.