Hobbywing Motor Bearing Set For Ezrun 1/8th

The Hobbywing Motor Bearing Set (HW30820029) is a premium replacement kit specifically engineered for 1/8 scale EzRun and XeRun brushless motors. Since 1/8 scale bashers and racers operate at extreme RPMs (often exceeding 50,000 RPM) and handle massive torque loads, these bearings are built to "German-standard" precision to ensure minimal friction, maximum durability, and a smooth power band.

Key Features:

• High-Speed Precision: These bearings are rated for high-velocity rotation, reducing "vibration-chatter" at top speeds which helps prevent rotor damage.
• Dual-Sized Set: This package includes both the Front (Output Shaft Side) and Rear (Endbell Side) bearings, which are typically different sizes in 1/8 scale Hobbywing motors to balance the load.
• Low Friction Shielding: Features high-quality metal shields that keep debris and dust out of the ball races without the drag associated with heavy rubber seals.
• Extended Service Life: Using genuine Hobbywing replacements ensures the internal clearances match the motor’s thermal expansion rates, preventing premature seizing during long, hot runs.

Technical Specifications:

Maintenance Tip:

To extend the life of these bearings, avoid over-tightening your gear mesh. A pinion gear that is pressed too tightly against the spur gear creates a constant lateral load on the front motor bearing, leading to heat buildup and flat spots on the internal balls. Always check your motor for "shaft play" (side-to-side movement) after a dusty bash session; if you feel excessive movement or hear a grinding noise, replace the bearings immediately to prevent the rotor from contacting the internal stator.