The 3920 bearing race is designed for use with 3984 tapered roller bearings and is commonly found in 12,000–15,000 lb trailer axle assemblies. With a 4.438" outer diameter, it provides a smooth, heavy-duty surface that ensures proper bearing alignment and long-lasting hub performance under extreme towing conditions. Bearing sold separately.

Detailed Information:

Fitting:

Fits trailer hubs designed for 12K–15K axles. Commonly used in heavy-duty Dexter-style hub assemblies. Presses securely into the hub to support smooth, low-friction bearing rotation.

Features:

• Precision Fit: Machined to exact tolerances for seamless integration with 3984 bearings.
• Heavy-Duty Design: Built for high-load, high-speed performance in commercial and industrial trailers.
• Reliable Operation: Maintains bearing alignment and protects against wear in harsh towing environments.

Interchangeable Part Numbers:

• DEXTER 3920
• TIMKEN 3920
• BRAKES4TRAILERS TIM3920

Product Overview:

The 3920 race is essential for maintaining stability and load distribution in large trailer axle hubs. When paired with the 3984 bearing and quality grease, it ensures extended hub life and dependable performance over long distances.