You Can Get: 4pcs Bearing Block, 20mm 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 underside with excellent quality and long service life. Adjustable Angle: Fine adjustment can fix between inner bearing and outer ring angle. Smooth operation, low friction and high stiffness. Easy to Use: These 4 pack ball bearings by two-hole housing with ball bearing insert for ready-to-mount installation. The ball bearing pillow has a fixing screw fixing ring for firm fixing on the guide shaft. Versatility: Bearing bearings are widely used in various machines, such as conveyors, mechanical equipment, machinery manufacturing, 7D printers and other machinery etc. Why choose our rolling bearing? 1. The bore ball bearing seat is made of zinc alloy, it is very durable. 2. The bore ball bearing seat has a set screw fixing ring for firm fixing on the guide shaft. 3. The angle between the inner bearing and the outer fixing ring of this bore ball bearing seat can be slightly adjusted. 4. Our bearing blocks are self-aligning pillow block bearing, you can adjust or replace the bearing easily. it will reduce your replacement frequency and maintenance cost. Specifications: Material: Zinc Alloy Model: KP004 Ball bearing Dimensions: 100*20*55mm (LWH) Hole diameter: 20mm Net weight: 580g Package content: 4 pcs Bearing block