✔ Advantage - Rotating quiet and high speed, high quality chrome steel bearings are rugged and durable. ✔ Bearing - 100% dimensional tolerance, noise and vibration inspection, for optimal installation and performance. ✔ Fits for - Trailer axle hub wheel for 1-3/8'' to 1-1/16'', L68149/L68111 and L44649/L44610 x 2, 171255TB seal, cotter pin and dust cover x 2. ✔ Guarantee - 1 year / 50,000 miles free replacement or refund no reason, don't worry about buying. ✔ Expert - Professional bearing manufacturing began in 1945, worth your find and trust. Tapered Roller Bearings