aFe 461-401001-A PFADT Series SKF Performance Wheel Bearing

The aFe PFADT Series SKF X-Tracker is a high-performance wheel bearing hub unit engineered for demanding race and street applications. Built around a double-row angular contact ball bearing design, the outboard row features a larger diameter and a higher ball count than the inboard row — delivering superior cornering precision, steering response, and long-term durability under extreme loads.

Designed as a direct-fit replacement, no modifications are required for installation. The integrated speed sensor ensures full compatibility with factory ABS and traction control systems. The black oxide coating provides enhanced corrosion resistance, while the ultra-tight flange face runout specification of less than 10 microns helps eliminate caliper piston knock-back and reduces braking distances.

Key Features:

• SKF X-Tracker Hub Unit — Double-row angular contact ball bearing with non-symmetrical row design
• Outboard-Biased Design — Larger diameter and more balls on the outboard row for improved cornering load handling
• Less Than 10 Micron Flange Runout — Minimizes caliper piston knock-back and improves braking consistency
• Integrated Speed Sensor — Maintains OEM ABS and stability system functionality
• Black Oxide Coating — Enhanced corrosion resistance for extended service life
• Direct-Fit Installation — No drilling, cutting, or modification required
• Improved Steering Accuracy — Enhanced dynamic vehicle behavior and stability
• Dramatically Increased Durability — Performance-engineered for race and high-performance street use

Emissions Note: This product does not require a CARB EO number.

WARNING: Some products may contain chemicals such as DEHP, which can cause cancer, birth defects, or other reproductive harm. For more information, visit P65Warnings.ca.gov.