688 8x16x4 mm Micro Hybrid Ceramic Deep Groove Ball Bearing for Racing RC Car Remote Control Car

688 Racing Bearing – Precision Performance for Competitive Speed

In the world of racing and high?performance RC, horsepower and torque are only part of the equation—the friction in every rotating assembly is where both speed and run time are lost. The 688 Racing Bearing is a precision?engineered deep groove miniature ball bearing specifically designed to minimize friction, withstand high rotational speeds, and deliver consistent, reliable performance on the track, on the street, and on the pavement.

Key Features:

• High Speed Capability
  This bearing is rated to operate at speeds up to an impressive 42,000 RPM when grease-lubricated. For applications where every fraction of a revolution counts, the 688 bearing also achieves a limiting speed of 36,000–43,000 RPM when grease-lubricated, with even higher limits available for oil-lubricated configurations—more than sufficient for the most demanding RC systems and personal mobility devices.

• Reduced Rotational Friction
  Less friction means less wasted energy, which yields higher top speeds and extended run times on the track—a double advantage that is immediately noticeable in electric RC cars where battery life is a prized performance metric.

• Superior Durability
  The RC industry has largely moved away from oil-impregnated bronze bushings (Oilite bushings) because they wear quickly, generate friction, and have a short service life. Replacement of stock bushings with high-quality ball bearings is one of the most effective and cost-efficient upgrades for any RC vehicle. Ball bearings require minimal maintenance and last significantly longer than stock bushings, making them an essential upgrade whether you are racing competitively or enjoying RC as a hobby.
• Extended Service Life
  The use of chrome steel combined with double shielded protection and high quality grease ensures that the 688 racing bearing withstands tens of thousands of revolutions without significant wear. Reduced friction also reduces heat buildup, which further extends the lubricant’s service life and prevents premature degradation of the bearing’s internal components.

Applications

• Remote Control (RC) Cars

• RC Helicopters

• RC Planes and Aircraft

• Skateboards and Longboards

• Inline Skates and Rollerblades
• Scooters (Kick Scooters)
• 3D Printers and Desktop CNC Machines
• Robotics and Small Motors
• Electric Fans, Small Appliances, and Precision Instruments