Overview
Eliminate high-speed driveshaft vibration on your Arrma 1/8 vehicle with the Hot Racing ATF125 Center Driveshaft Bearing. This precision 11x21x4mm bearing is the replacement bearing component for the Hot Racing ATF125 High-Speed Support Set, designed to stabilize the center driveshaft at the elevated RPMs reached by upgraded brushless motors and high-speed gearing.
At top speed, even minor driveshaft imbalance creates damaging vibration that wears bearings, gears, and chassis components. This bearing keeps the support assembly tight, smooth, and reliable run after run — essential maintenance for any speed-run or high-power Arrma build.
Key Features
- Precision 11x21x4mm shielded ball bearing
- Direct replacement for the bearing used in ATF125 high-speed support set
- Reduces center driveshaft vibration at high RPM
- Sealed for long life and low maintenance
- OEM-grade quality for smooth operation
Performance Benefits
- Smoother driveshaft rotation at high transmission RPM
- Reduced vibration extends the life of related drivetrain components
- More consistent power transfer at top speed
- Minimizes damaging harmonic resonance
Usage Notes
ATF125C only works in combination with the Hot Racing ATF125 high-speed center driveshaft support set. Lubricate sparingly with light oil during installation; over-lubrication attracts dust and debris. Replace the bearing if you notice any roughness, noise, or play during inspection.
Technical Specs
- Bearing Size: 11mm ID x 21mm OD x 4mm thickness
- Type: Shielded ball bearing
- Function: Center driveshaft support bearing
- Required Companion: Hot Racing ATF125 high-speed support set
What's Included
- One (1) 11x21x4mm precision ball bearing
Fitment
- Arrma 1/8 scale 4x4 vehicles using the ATF125 high-speed support set
- Replacement bearing only — requires Hot Racing ATF125 to function
Summary
The Hot Racing ATF125C Center Driveshaft Bearing is the right replacement part to keep your Arrma high-speed support set running smooth at peak RPM. Inexpensive insurance for any speed-run or brushless-upgraded build.
