???You can get?: 4pcs Bearings Block, Bore Ball Mounted Pillow Block Insert Bearing. Our pillow block 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 the inner bearing and the outer ring angle. Smooth operation, low friction and high rigidity. ???Easy to use?: These set of 4 ball bearings feature a two-hole housing with ball bearing insert for ready-to-mount installation. Ball bearing pillow has a fixing screw mounting ring for firm fixing on the guide shaft. Versatility: Bearing bearings are widely used in various machines, such as conveyors, mechanical equipment, machinery manufacturing, 3D printers and other machines etc. Product Description Color:8/10/12/15/20mm ?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 fixing screw fixing ring for fastening firm 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 blocks bearing are self-aligning pillow block bearing, you can adjust or replace the bearing easily. this will reduce your replacement frequency and maintenance costs. Specifications: Material: zinc alloy Model: Ball bearing Net weight: 150g Package Content: 4pcs Bearing Block Tips: Please make sure the size you need is correct before purchasing. Your satisfaction is our goal. LRFR is committed to providing each customer with the highest possible quality of customer service.