GENUINE BEARING BUDDY.
*  The ultimate in wheel bearing protection for your trailer.
*  Replaces dust cap on trailer hub for easy lubrication and maximum protection.
*  Prevents bearing failure and  keeps water and dirt out of hubs.
*  Bearings receive constant lubrication, so they never need to be repacked.
*  Quick lubricant check level.
*  Quality construction, heavy chrome plated barrel, stainless steel internal parts.
*  Sold in pairs only.
*  Fits:  2" hub.
*  Outer bearing:  LM44643, LM44649.
*  Outer cup:  LM44610.