{"product_id":"61801-2rs-ceramic-bearing-abec-5-si3n4-12x21x","title":"Sealed Ceramic Ball Bearing ABEC-5 With Si3N4 Balls 12x21x5mm Deep Groove Radial Bearing Chrome Steel Cage Dual Seals High Precision For CNC Machinery Robotic Applications Ideal For High Speed Precision Machinery","description":"\u003cdiv\u003eSingle-pack sealed ceramic bearing 12x21x5mm for precision\u003cbr\u003e\n✔️ ABEC-5 grade, Si3N4 ceramic balls, double rubber seals \u003cp\u003e61801-2RS is a sealed, double-sealed radial deep groove bearing that uses ceramic balls for reduced wear and higher speed. It's a compact unit often used in electric motors, 3D printers, robots, and precision equipment where smooth rotation and long service life matter.\u003c\/p\u003e \u003cp\u003e61801-2RS Sealed Ceramic Ball Bearing ABEC-5 Quality with Si3N4 Ceramic Balls (Silicon Nitride) 12mm x 21mm x 5mm. This hybrid bearing combines ceramic balls with chrome steel components for improved wear resistance and lower friction in high-speed applications. It’s pre-lubricated and sealed to keep out dust and contamination, making it ideal for precision assemblies and compact machinery.\u003c\/p\u003e ✅ Deep groove radial bearing with Si3N4 ceramic balls and chrome steel cage\u003cbr\u003e\n✅ Double rubber seals for dust protection\u003cbr\u003e\n✅ ABEC-5 quality for high-speed performance\u003cbr\u003e\n✅ Dimensions: 12 mm ID, 21 mm OD, 5 mm width\u003cbr\u003e\n✅ Lubrication: Grease SRL; sealed and self-lubricated\u003cbr\u003e \u003cp\u003e💡 What is a sealed ceramic ball bearing used for in precision machinery?\u003c\/p\u003e\n\u003cp\u003eThese bearings give smooth rotation and long life in compact systems where precision is key.\u003c\/p\u003e\n- Handy for electric motors, CNC machines, 3D printers\n- Great for tight tolerances and low friction in high-speed runs\n- Ideal for robotics joints and conveyors with limited space \u003c\/div\u003e","brand":"VXB","offers":[{"title":"Default Title","offer_id":43555207774443,"sku":"Kit8566","price":29.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/61801-2rs-ceramic-bearing-abec-5-si3n4-12x21x5-vxb-ball-bearings.jpg?v=1770442642","url":"https:\/\/vxb.com\/products\/61801-2rs-ceramic-bearing-abec-5-si3n4-12x21x","provider":"VXB Bearings","version":"1.0","type":"link"}