{"product_id":"13x21x5mm-non-standard-ball-bearing-13mm-x-21mm-x","title":"13x21x5mm Non-Standard Ball Bearing 13mm x 21mm x 5mm","description":"\u003cp\u003e13x21x5mm Non-Standard Ball Bearing\u003cbr\u003e✔️ 13mm x 21mm x 5mm - Rubber Sealed, Chrome Steel\u003c\/p\u003e\n\u003cp\u003eThis 13x21x5mm non-standard deep groove ball bearing is built with high-quality chrome steel and features rubber seals on both sides for protection from dust and debris. With its uncommon 13mm bore and ultra-slim 5mm width, it’s ideal for precision applications where standard bearings won't fit.\u003c\/p\u003e\n\u003cp\u003e✅ Size: 13mm x 21mm x 5mm\u003cbr\u003e✅ Type: Non-standard deep groove ball bearing\u003cbr\u003e✅ Material: Chrome steel (52100 alloy)\u003cbr\u003e✅ Cage: Steel\u003cbr\u003e✅ Closures: Double rubber seals (2RS)\u003cbr\u003e✅ Lubrication: Pre-greased, self-lubricated\u003cbr\u003e✅ Quantity: 1 bearing\u003cbr\u003e✅ Brand: VXB\u003c\/p\u003e\n\u003cp\u003e💡 When should you choose a non-standard bearing with narrow width?\u003cbr\u003eA bearing like this is ideal for compact assemblies, tight housings, or custom tools where just a few extra millimeters in width would prevent installation or affect performance.\u003c\/p\u003e\n\u003cp\u003ePerfect for slim-profile mechanisms with exact fitment requirements.\u003c\/p\u003e\n\u003cp\u003e🔍 Comparison Table: 13x21x5mm vs. 6801-2RS Bearing\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eFeature\u003c\/th\u003e\n\u003cth\u003e13x21x5mm (Non-Standard)\u003c\/th\u003e\n\u003cth\u003e6801-2RS (Standard)\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eInner Diameter (ID)\u003c\/td\u003e\n\u003ctd\u003e13mm\u003c\/td\u003e\n\u003ctd\u003e12mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOuter Diameter (OD)\u003c\/td\u003e\n\u003ctd\u003e21mm\u003c\/td\u003e\n\u003ctd\u003e21mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWidth\u003c\/td\u003e\n\u003ctd\u003e5mm\u003c\/td\u003e\n\u003ctd\u003e5mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSeals\u003c\/td\u003e\n\u003ctd\u003eRubber sealed (2RS)\u003c\/td\u003e\n\u003ctd\u003eRubber sealed (2RS)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eUse Case\u003c\/td\u003e\n\u003ctd\u003ePrecision\/custom fit\u003c\/td\u003e\n\u003ctd\u003eBicycles, motors, tools\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003eBest used when you need that exact 13mm bore with a matching slim profile for high-efficiency, sealed rotation.\u003c\/p\u003e","brand":"VXB","offers":[{"title":"Default Title","offer_id":43942861701355,"sku":"13x21x5mm-Bearing","price":39.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0662\/3268\/0683\/files\/13x21x5mm-ball-bearing-rubber-sealed-front-view.jpg?v=1770447179","url":"https:\/\/vxb.com\/products\/13x21x5mm-non-standard-ball-bearing-13mm-x-21mm-x","provider":"VXB Bearings","version":"1.0","type":"link"}