ITEM NAME:2 Pcs Zinc Alloy 12mm Self-aligning Ball Bearing Pillow Block UP001 G5I1 2 Pcs Zinc Alloy 12mm Self-aligning Ball Bearing Pillow Block UP001 G5I1 Mounting Type: Pillow Block. Auto Self-aligning. Product Name : Pillow Block Bearing Bearing Model : UP001 Material : Zinc Alloy Color : Silver Gray, Black Internal Bore Diameter : 12mm / 0.47inch Bearing Height : 38mm / 1.5inch Bearing Width : 16mm / 0.63inch Pillow Block Length : 71mm / 2.8inch Mounting Hole Spacing : 56mm / 2.2inch Net Weight : 170g Package Content : 2 x Pillow Block Bearing Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm..Bearing Model : UP001. Mounting Type: Pillow Block. Material : Zinc Alloy.