Attributes . 4 Bolt Round Flange Cartridge; 2-11/16" Bore; 6.9" Bolt Circle; 4-59/64" Bolt Spacing; 1 Piece Solid; Set Screw Mount; Cast Iron; Ball Bearing; 2-15/16" Length Thru Bore; Relubricatable; Single Lip Land Riding Seals . Names