Mounted Ball Bearing Number of Bolts 2 Corrosion Resistant with USDA-H1 Grease Series Bore Dia 3/4 In. Ball Bearing Type Steel Bearing Material Stainless Steel Housing Material Set Screw Locking Type Mounting Hole Center 90mm Overall Height 33.3mm Overall Width 60mm Overall Length 112mm Bolt Hole Size 12mm Ball Bearing Insert Dynamic Load Capacity 2 270 lb. Static Load Capacity 1 530 lb. Temp Range -4 Degrees to 248 Degrees F Chrome Finish Silver