Replacement cast steel bearing cap for most disc harrows with 1" square axles and 7-7/16" ribbed spools.  Listing is for one cast steel bearing cap with grease fitting installed with four (4) grooves, two inner grooves are 1-1/2" apart and 2 outside groves are 4" apart. Bolt hole spacing is 3" on center and designed to use 1/2" carriage bolts, overall cap length is just over 5". It takes two of these bearing caps to clamp over each ribbed spool. Listing is for one (1) cap! These bearing caps should be lubricated with grease and should be greased before each use and every couple hours during use!