{"product_id":"m-part-ceramic-bearing-6904-llb-20x37x9-for-bicycle-hubs-wheel-assemblies","title":"M Part Ceramic Bearing 6904 LLB 20x37x9 for Bicycle Hubs \u0026 Wheel Assemblies","description":"\u003cp\u003eThe M Part Ceramic Bearing 6904 LLB 20x37x9 is engineered for cyclists seeking precision and durability. Featuring high-quality Si3N4 Silicon Nitride ball bearings and CrMo races, it ensures exceptional low friction spinning, enhancing your ride efficiency. Its nylon retainer and ABEC-5 tolerance deliver reliable performance comparable to top-tier bike brands.\u003c\/p\u003e\n\n\u003cp\u003eDesigned with rubber LLB non-contact seals and filled with Multemp PS2 (Kyodo Yushi) grease, this bearing offers smooth operation and long-lasting protection against contaminants. Ideal for hubs and wheel assemblies, it stands out as a premium upgrade for your bicycle components.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It’s Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eReducing friction for smoother, faster wheel rotation\u003c\/li\u003e\n  \u003cli\u003eEnduring rigorous cycling conditions with durable materials\u003c\/li\u003e\n  \u003cli\u003eEnhancing the lifespan of hubs and wheel assemblies\u003c\/li\u003e\n  \u003cli\u003eMaintaining consistent performance with high-quality grease\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat It’s NOT Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eApplications outside of bicycle components\u003c\/li\u003e\n  \u003cli\u003eUse in environments with extreme contamination beyond sealing capabilities\u003c\/li\u003e\n  \u003cli\u003eHeavy industrial machinery requiring specialized bearings\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eIs this bearing compatible with all bike hubs?\u003c\/strong\u003e\u003cbr\u003eIt is designed to fit standard 6904 size hubs, but compatibility should be confirmed with your specific bike model.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow does the ceramic material benefit cycling?\u003c\/strong\u003e\u003cbr\u003eCeramic bearings reduce friction and heat buildup, resulting in smoother rides and increased bearing longevity compared to standard steel bearings.\u003c\/p\u003e","brand":"M Part","offers":[{"title":"Default Title","offer_id":45499469988015,"sku":"CB-368","price":23.49,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/1720177682-14200900.jpg?v=1768523591","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/m-part-ceramic-bearing-6904-llb-20x37x9-for-bicycle-hubs-wheel-assemblies","provider":"Swinnerton Cycles","version":"1.0","type":"link"}