THIS LISTING IS FOR A 8 FOOT YARD WINDMILL (FAN HUB) BEARING REPAIR KIT. FOR YOU FOLKS WHO WOULD LIKE TO FIX UP YOUR OLDER WINDMILL. IT IS CRITICAL THAT YOU MEASURE YOUR FAN HUB INSIDE DIAMETER AND WE HAVE INCLUDED A PHOTO OF THAT PROCEDURE. OUR BEARINGS ARE 1/2 ID x 1 3/8 OD. WILL FIT ALL THE MODELS WITH THE 1 3/8 ID FAN HUB. THESE ARE MOST COMMON ON OLDER MODELS MADE IN THE UNITED STATES. WILL NOT HAVE TO USE THE GREASE FITTING WITH THESE SEALED BEARINGS. IF YOU NEED ANOTHER SIZE PLEASE ASK. OUR BEARING REPLACEMENT KIT INCLUDES (2) FLANGE, SEALED BEARINGS WITH CLIPS, PINS AND NEW WASHERS. THESE ARE SEALED BEARINGS AND WILL ELIMINATE THE NEED FOR GREASE. AT THIS POINT WE HAVE NO INSTRUCTION FOR REPAIR OTHER THAN TO MEASURE BEFORE ORDERING. A SIMPLE PROJECT THAT REQUIRES HOMEOWNER TYPE TOOLS, HAMMER, SCREWDRIVER, PLIERS. WE OFFER A 10 YEAR WARRANTY FOR THE BEARINGS AND YOUR PURCHASE OF THIS ITEM SUPPORTS AMERICAN TRADE AND LABOR.