3/4" Bore; 2.47" Nominal Bolt Circle Diam; 4 Bolt Square Flange; Aluminum Housing; Plain; 1-5/8" Length Thru Bore; 1-3/4" Bolt Spacing; 2.067" Housing Length; 7/32" Mounting Hole Diam; No Relubricatable; FL12; Self Aligning; End Mount