Attributes . 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; 9/32? Mounting Hole Diam; Yes Relubricatable; KX24PP; 2 Seals; Non-Adjustable; Yes Self Aligning . Names