6x3x2.5mm High-Precision Ball Bearing Set for RC ERA C190 Main Shaft

The Secret to Vibration-Free Flight

A "gritty" or seized ball bearing is the #1 cause of flight-controller interference and lost motor power. This 6x3x2.5mm high-speed ball bearing solves the issue of drivetrain drag, providing the ultra-low friction rotation required for the C190’s brushless motor to reach its peak efficiency. It ensures your main shaft or rotor head spins with surgical precision, which is vital for the Optical Flow sensors to work correctly. Ships worldwide.

Product Highlights

• Precision: Manufactured to high tolerances to ensure minimal radial play, even at the high RPMs required for 1:28 scale brushless flight.

• Shielded Design: Features protective side shields to keep out dust, hair, and grass debris, significantly extending the service life of the internal balls.

• Premium Chrome Steel: Constructed from high-grade steel that resists deformation and pitting, maintaining a "buttery smooth" feel flight after flight.

• Energy Efficiency: By reducing rotational resistance, these bearings help squeeze extra flight time out of your 7.4V modular battery.

Compatibility

For the RC ERA C190 Brushless RC Helicopter only.
Full model page (specs & photos):
https://www.kidstoylover.com/products/rc-era-c190-1-28-brushless-rc-helicopter-optical-flow-hover-altitude-hold

What’s in the Box

• 1 x High-Speed Ball Bearing Set (6x3x2.5mm)

Install Tips

• Gentle Press Fit: Use a flat tool to press the bearing into its housing; never apply pressure directly to the inner race, as this can dent the balls and cause immediate "grittiness."

• Vertical Alignment: Ensure the bearing is perfectly perpendicular to the main shaft to avoid creating a "tight spot" in the transmission.

• Replacement Cycle: If you can feel any roughness when spinning the shaft by hand, it is time to replace the bearing to prevent damaging the plastic frame.

Support & Warranty

• Expert help to choose the right RC ERA C190 spare parts
• 3-month warranty on manufacturing defects
• Ships worldwide

Other Related Parts

Need gears, shafts, servos, LEDs, batteries and more? Browse the full RC ERA C190 spare parts collection:
https://www.kidstoylover.com/collections/rc-era-c190-rc-helicopter-spare-parts-accessories-1