You Can Get: 4pcs Bearing Block, 12mm Bore Ball Mounted Pillow Block Insert Bearing. Our pillow blocks are always your best choice. High Quality: Using high quality zinc alloy material, sturdy and wear-resistant. Zinc alloy flange bottom with excellent quality and long service life. Adjustable Angle: Fine adjustment can fix between the inner bearing and the outer ring angle. Smooth operation, low friction and high rigidity. Easy to use: These 4 pack ball bearings by a two-hole housing with ball bearing insert for ready-to-mount installation. Ball bearing pillow block has a fixing screw fixing ring for firm fixation on the guide shaft. Versatility: Pillow block bearings are widely used in various machines, such as conveyors, mechanical equipment, machine manufacturing, 5D printers and other machines etc. Specifications: Material: Zinc alloy Model: KP001 Ball bearing Dimensions: 71*16*38mm (LWH) Hole diameter: 12 mm Net weight: 200g Package contents: 4 pieces Bearing block