Sealmaster MFC-40 Medium Duty Piloted Flange Cartridge, 4 Bolt, Regreasable, Felt Seals, Setscrew Locking Collar, Cast Iron Housing, 2-1/2" Bore, 7-5/8" Overall Length, 4.596" Bolt Hole Spacing Width, 9/16" Flange Height, ±2 Degrees Misalignment Angle