These high speed trailer bearings are step one in your trailer hub rebuild project. Bearings use standardized Part Numbers, All you need to do to determine what size bearing fits your spindle is look at your old bearings!
These Trailer Bearings are marked L44649, They have an Inside Diameter of 1 inch.
Trailer Bearings Stamped L44649 fit races stamped L44610.
Be Sure to check out our Bearing Kits if you are looking to replace the whole assembly.