Attributes . 4 Bolt Round Flange Cartridge; 3-15/16" Bore; 9.4" Bolt Circle; 6.6" Bolt Spacing; 1 Piece Solid; Concentric Collar Mount; Cast Iron; Spherical Roller Bearing; 4-19/32" Length Thru Bore; Relubricatable; Trigard Seals . Names