Usage Tips: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 underside with excellent quality and long service life. Adjustable Angle: A fine adjustment can be fixed 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 block has a retaining screw mounting ring for firm attachment to 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. 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 firm fixation on the guide shaft. 3. The angle between the inner bearing and the outer fixing ring of this bore ball bearing seat can be adjusted slightly. 4. Our bearing blocks 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: KP08 Ball bearing Hole diameter: 12mm Package Content: 4pcs Bearing Block Tips: 1.Please make sure the size of which you need is correct before purchasing. Your satisfaction is our goal.Good quality product