1-1/2" Bore; 1.75" Base to Center Height; 4.1" Nominal Bolt Center Across Shaft; 4 Bolt Pillow Block; Aluminum Housing; Ball; 3" Length Thru Bore; 0.28" Mounting Hole Diam; Yes Relubricatable; SUPER-24-OPN-DD-CR; 2 Seals; Non-Adjustable; Yes Self Aligning