1、Rugged Construction: Made of high grade steel alloy, providing high wear resistant and scratch resistant, ensuring long lasting performance in various harsh environments. 2、Grease Retention Design: Reinforced spring behind the lip helps retain grease inside the hub and protects water and road grime from entering, ensuring smooth operations. 3、Complete Set: Includes LM11949 LM11910 bearings (ID 0.7500in x OD 1.7810in), LM67048 LM67010 bearings (ID 1.2500in x OD 2.3280in), and oil seal (ID 1.524in x OD 2.3652in). 4、Excellent Support: Upgraded bearing kit provides outstanding support for the spindle, reducing hub friction coefficient, minimizing drag between towing vehicle and trailer. 5、Easy Replacement: Suitable for 3/4in axles trailer wheel hub, ideal for rebuilding and replacing old or damaged trailer bearings, improving vehicle efficiency.