Features: 1.Every product has a unique Manufacturing Part Number label on the inner package that proves it has been qualified,which include Part Number,Model Number and inspection date information; 2.If you have any questions about the item,please provide us the Manufacturing Part Number for checking,your profits will be guaranteed. 3.Scope of application: various mechanical equipment, conveyors, machinery manufacturing. 4.Structure in separated state: The assembly principle of vertical seat and horizontal seat is the same) 5.Note: When assembling, the groove must be aligned, otherwise the bearing will not fit in. 6.Note: Use the lever principle to straighten the bearing 7.Note: Some bearings and bearing seats are not horizontally parallel, which can be corrected by adjustment! Specifications: Material: Zinc alloy Color: Silver Brand name: Unbranded Size: 4.8x2.7x1.2cm/1.89x1.06x0.47inch (LxWxID) Weight: 58 g Package include: 2 x Pillow Block Bearing