.✔ 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 axles hub wheel for 1'', L44643/L44610 x 8, 12192TB seal, cotter pin and dust cover x 4. ✔ 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.