{"product_id":"enduro-bearings-61903-llu-llb-abec-5-radial-bearing-17x30x7-mm-for-bikes","title":"Enduro Bearings 61903 LLU\/LLB ABEC-5 Radial Bearing 17x30x7 mm for Bikes","description":"\u003cp\u003eEnduro Bearings 61903 LLU\/LLB SL CN - ABEC5 is a precision-engineered radial bearing designed to deliver exceptional performance and durability for demanding bicycle components. Measuring 17x30x7 mm, this bearing features a unique solid-lubricant polymer that replaces traditional grease, effectively preventing water and dirt intrusion. Manufactured with 52100 High-Carbon Chromium alloy races and grade 10 balls, it ensures long-lasting reliability and smooth operation under various cycling conditions.\u003c\/p\u003e\n\n\u003cp\u003eThe deeper groove design accommodates larger balls, increasing the contact area and significantly extending bearing life. The innovative LLU\/LLB seal configuration optimizes protection: the LLU seal faces outward to shield against contaminants, while the lighter-contact LLB seal retains lubrication efficiently inside. This bearing size is ideal for use in front hub assemblies, older square taper bottom brackets, and pivot points, making it a versatile component for bike maintenance and upgrades.\u003c\/p\u003e\n\n\u003cp\u003eEnduro Bearings are available in multiple materials including High-Carbon Chromium Steel, 440C Stainless Steel, and Ceramic-Hybrid variants, with both ceramic and stainless steel balls. Every bearing is designed with deep groove races and dual-lip seals that create a labyrinth seal, providing superior defense against environmental elements to keep your ride smooth and reliable.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It’s Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eEnhancing the durability and performance of bicycle hubs and bottom brackets.\u003c\/li\u003e\n  \u003cli\u003eReducing contamination from water and dirt thanks to advanced LLU\/LLB seal design.\u003c\/li\u003e\n  \u003cli\u003eProviding smooth, low-friction rotation with ABEC-5 precision and solid-lubricant technology.\u003c\/li\u003e\n  \u003cli\u003eExtending bearing life through deep groove races that accommodate large balls for maximum contact.\u003c\/li\u003e\n  \u003cli\u003eVersatile applications including front hubs, square taper bottom brackets, and pivot points.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat It’s NOT Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eSuspension pivot bearings, where the MAX-type Enduro bearings are better suited.\u003c\/li\u003e\n  \u003cli\u003eApplications requiring sealed cartridge bearings with different dimensional specifications.\u003c\/li\u003e\n  \u003cli\u003eHigh-impact or extreme off-road conditions that demand specialized shock-absorbing bearings.\u003c\/li\u003e\n  \u003cli\u003eNon-bicycle components that require alternative bearing types or sizes.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the LLU\/LLB seal combination mean?\u003c\/strong\u003e\u003cbr\u003eThe LLU\/LLB seal setup uses a more robust LLU seal facing outward to protect against water and dirt, while the lighter LLB seal inside reduces friction and keeps lubricant inside the bearing for optimal performance.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan this bearing be used for suspension pivots?\u003c\/strong\u003e\u003cbr\u003eWhile it can be used for pivot points, the MAX-type Enduro bearings are specifically designed for suspension applications and provide better performance under those conditions.\u003c\/p\u003e","brand":"Enduro Bearings","offers":[{"title":"7mm \/ Silver \/ 61903 30mm ABEC 5","offer_id":46201183666351,"sku":"EB9770","price":22.6,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/48132-pm.jpg?v=1768534296","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/enduro-bearings-61903-llu-llb-abec-5-radial-bearing-17x30x7-mm-for-bikes","provider":"Swinnerton Cycles","version":"1.0","type":"link"}