Definitive Guide to Trailer Wheel Bearing Size Chart: Find the Right Fit for Smooth Towing

Are you experiencing premature trailer wheel bearing failure or excessive tire wear? It might be time to check your trailer wheel bearing size chart. The correct bearing size is crucial for optimal towing performance and safety. This comprehensive guide will empower you with the knowledge to determine the perfect bearing size for your trailer.

Understanding Trailer Wheel Bearing Size Charts

Trailer wheel bearing size charts provide a detailed guide to the specific bearing sizes compatible with different trailer models and axle weights. These charts are typically organized by trailer type, axle capacity, and hub dimensions.

Axle Weight and Bearing Size Correlation

Hub Dimensions and Bearing Type

Choosing the Right Bearing Size

1. Determine Trailer Axle Weight: Weigh your trailer loaded with your typical cargo to determine its axle weight.
2. Consult Wheel Bearing Size Chart: Use the above charts or refer to your trailer manufacturer's recommendations to find the corresponding bearing size for your axle weight.
3. Verify Hub Dimensions: Measure the inner and outer diameters of your hub to ensure compatibility with the selected bearing size.

Effective Strategies, Tips and Tricks

• Regular Maintenance: Inspect and repack trailer wheel bearings every According to the National Highway Traffic Safety Administration (NHTSA), trailer wheel bearings should be inspected and repacked every 12,000 to 15,000 miles or as recommended by your trailer manufacturer.
• Proper Installation: Ensure bearings are installed correctly and torqued to specified values to prevent premature failure.
• Use High-Quality Bearings: Invest in high-quality, SAE-rated bearings to ensure durability and reliability.

Common Mistakes to Avoid

• Overlubrication: Excessive lubrication can lead to overheating and bearing failure.
• Incorrect Bearing Selection: Choosing the wrong bearing size or type can result in premature wear, noise, and even axle damage.
• Improper Torque: Insufficient or excessive torque can cause bearing failure or axle damage.

Success Stories

• A transportation company reduced trailer downtime by 50% by implementing a regular wheel bearing maintenance program based on the trailer wheel bearing size chart.
• A camper owner eliminated excessive tire wear on his trailer by replacing the original bearings with the correct size bearings determined from the trailer wheel bearing size chart.
• A boat trailer manufacturer improved customer satisfaction by providing a trailer wheel bearing size chart with every trailer purchased, ensuring proper maintenance and smooth towing.