1" Bore; 3.01" Nominal Bolt Circle Diam; 4 Bolt Square Flange; Aluminum Housing; Ball; 2-1/4" Length Thru Bore; 2.13" Bolt Spacing; 5.33" Housing Length; 5/16" Mounting Hole Diam; Relubricatable; SSU-16-WW; 2 Seals; Self Aligning; End Mount Twin

1/2" Bore; 1.77" Nominal Bolt Circle Diam; 4 Bolt Square Flange; Aluminum Housing; Plain; 1-1/4" Length Thru Bore; 1-1/4" Bolt Spacing; 1.69" Housing Length; 0.19" Mounting Hole Diam; Relubricatable; FNYBU-08; 2 Seals; No Self Aligning; End Mount

3/4" Bore; 2.47" Nominal Bolt Circle Diam; 4 Bolt Square Flange; Aluminum Housing; Ball; 1-5/8" Length Thru Bore; 1-3/4" Bolt Spacing; 3.95" Housing Length; 1/4" Mounting Hole Diam; Relubricatable; SSU-12-WW; 2 Seals; Self Aligning; End Mount Twin

1-1/2" Bore; 4.43" Nominal Bolt Circle Diam; 4 Bolt Square Flange; Aluminum Housing; Ball; 3" Length Thru Bore; 3.13" Bolt Spacing; 7-1/2" Housing Length; 3/8" Mounting Hole Diam; Relubricatable; SSU-24-WW; 2 Seals; Self Aligning; End Mount Twin

3/4" Bore; 2.47" Nominal Bolt Circle Diam; 4 Bolt Square Flange; Aluminum Housing; Ball; 1-7/8" Length Thru Bore; 1-3/4" Bolt Spacing; 2.06" Housing Length; 0.21" Mounting Hole Diam; Relubricatable; SUPER-12-DD; 2 Seals; Self Aligning; End Mount