UNIQUE FUNCTIONAL PRODUCTS 07371 1980A TRAILER BUDDY WITH BLUE AUTO CHECK (PAIR)

Bearings fail when they get wet or dirty in the course of normal use. Even short-distance trailering heats trailer hubs. When the hot hubs are submerged in water, the air inside them contracts, forming a vacuum which sucks water through the rear seals or around the dust caps. The water and attendant grit will destroy the bearings. Bearing Protectors keep water and dirt from all trailer bearings. It simultaneously keeps bearings properly lubricated and extends their service life even when the trailer is subjected to moisture from outdoor storage or frequent submersion in saltwater or freshwater at boat launching ramps. The protector is a stainless steel barrel that is pressed in the trailer wheel hub, in place of the dust cap. Simply remove the dust cap, tap the protector into place (it’s designed to self-seat) and fill it with marine bearing grease. The hub is filled with grease through a grease fitting in the front of the bearing protector. As it fills with grease, an internal piston in the bearing protector moves forward to show the proper level has been reached. The protector even has an automatic pressure control to prevent overfilling and seal damage. Once installed and filled, all you need to do is check the protector’s grease level prior to submerging the trailer axles by simply pushing on the piston. If the piston does not move or rock, top off the protector with marine bearing grease. The Bearing Protector has a natural resistance to corrosion. All bearing protectors come with the blue Auto Check® ring, a visual lubricant level indicator.