{"product_id":"6801-full-ceramic-bearing-si3n4-ptfe-12x21x5","title":"Full Ceramic Si3N4 Ball Bearing 12x21x5mm With PTFE Cage, 14 Ceramic Balls, High-Precision Silicon Nitride Bearing For Low Friction, Corrosion-Resistant, High Rigidity And Durable Industrial Performance","description":"\u003cdiv\u003e12x21x5mm single piece Full Ceramic Bearing with Si3N4 Balls\u003cbr\u003e\n✔️ 12mm bore, 21mm OD, 5mm width, PTFE cage, 14 Si3N4 balls \u003cp\u003eThis full ceramic bearing uses silicon nitride balls and a PTFE cage, optimized for high-speed, low-friction operation in precision equipment and clean environments.\u003c\/p\u003e ✅ Single bearing, 12 mm bore, 21 mm outer diameter, 5 mm width\u003cbr\u003e\n✅ Open-ball design with 14 Si3N4 ceramic balls\u003cbr\u003e\n✅ PTFE cage for low friction and corrosion resistance\u003cbr\u003e\n✅ Dimensions: ID 12 mm, OD 21 mm, width 5 mm\u003cbr\u003e \u003cp\u003e💡 What is a full ceramic bearing used for in precision machinery and why choose Si3N4?\nThis handy option shines in several ways:\n- High-speed performance with low friction\n- Excellent corrosion resistance for harsh environments\n- Lightweight, stable operation across temperature\n- Long service life in demanding equipment\u003c\/p\u003e\n\u003c\/div\u003e","brand":"VXB","offers":[{"title":"Default Title","offer_id":43555198927083,"sku":"Kit8227","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/6801-full-ceramic-bearing-si3n4-ptfe-front-view.jpg?v=1770442661","url":"https:\/\/vxb.com\/products\/6801-full-ceramic-bearing-si3n4-ptfe-12x21x5","provider":"VXB Bearings","version":"1.0","type":"link"}