Lippert 333953 RV and Trailer Axle Grease Seal 1250LB 1" Spindle with 1.249 ID (2 pack) Lippert Components double lip grease seals form a protective barrier between the axle hub and the outside elements Double lip grease seals do a better job at keeping dirt, grime and water from infiltrating the axle grease Lippert Components double lip grease seals protect the axle hub grease from dirt and water infiltration 2 double lip grease seals per package 1,250-pound axle capacity