Trailer Buddy Stainless Steel Wheel Bearing Protectors, 1.781A (1-Pair) #07240

Trailer Buddy Stainless Steel Wheel Bearing Protectors, 1.781A (1-Pair) #07240 Trailer Buddy bearing protectors are perfect for boat trailers.  They provide excellent corrosion resistance and are entirely made of stainless steel.  The design makes it an easy way to protect your trailer's bearings by keeping water and dirt out and ensuring proper grease levels in the hub. Features/Benefits: All Stainless Steel Construction Helps to prevent wheel bearing failure Eliminates water and dirt from entering wheel hubs/bearings Prevents corrosion and pitting of bearings Zerk grease fitting allows grease to be added easily Maintains slight, controlled pressure (3 psi) with spring-loaded piston, preventing water, from entering hub Prevents overfilling and rear seal damage with automatic pressure relief feature Grease seeps around piston edges and into the barrel when full For use with 1.781" hub bore Works with outer bearing LM11949 and race/cup 11910 How they work: The axle hub is fil