{"product_id":"enduro-bearings-61903-29-5-srs-abec-5-sealed-bearing-17x29-5x7mm-for-hubs-bottom-brackets","title":"Enduro Bearings 61903\/29.5 SRS ABEC 5 Sealed Bearing 17x29.5x7mm for Hubs \u0026 Bottom Brackets","description":"\u003cp\u003eThe Enduro Bearings 61903\/29.5 SRS ABEC 5 offers a significant upgrade in performance for your hubs and bottom brackets. Crafted with military-grade HRC-64 hardened Grade 5 Chromium Steel Balls and 52100 High-Carbon Chromium-Alloy mirror polished races, these bearings deliver exceptional precision and durability. Their tolerances are twice as tight as those of the ABEC 3 range, ensuring smooth, noise-free operation that enhances your riding experience.\u003c\/p\u003e\n\n\u003cp\u003eEquipped with Graphite\/Nylon ball retainers, these bearings minimize friction and maintain constant lubrication, extending their lifespan even under demanding conditions. The SRS sealed design keeps contaminants out while the Kyodo Yushi PS-2 grease guarantees consistent performance. With dimensions of 17mm x 29.5mm x 7mm, this bearing is perfectly suited for a variety of cycling components.\u003c\/p\u003e\n\n\u003ch3\u003eWhat It’s Good For\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003eDelivering high precision and smooth rotation for hubs and bottom brackets\u003c\/li\u003e\n  \u003cli\u003eReducing noise and friction during rides for improved comfort\u003c\/li\u003e\n  \u003cli\u003eEnhancing durability with military-grade steel and advanced lubrication\u003c\/li\u003e\n  \u003cli\u003eSealed design to protect against dirt and moisture, prolonging bearing life\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 requiring bearings with larger or smaller dimensions than 17mm x 29.5mm x 7mm\u003c\/li\u003e\n  \u003cli\u003eSituations where ABEC ratings higher than 5 are required for ultra-high precision\u003c\/li\u003e\n  \u003cli\u003eEnvironments with extreme contamination beyond the protection of SRS seals\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does ABEC 5 mean?\u003c\/strong\u003e\u003cbr\u003eABEC 5 is a precision rating that indicates tighter tolerances and smoother operation compared to lower ABEC ratings like ABEC 3, making it ideal for high-performance cycling components.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAre these bearings compatible with all hubs?\u003c\/strong\u003e\u003cbr\u003eThese bearings fit hubs and bottom brackets that match the 17mm x 29.5mm x 7mm dimensions, so it’s important to verify your component specifications before purchase.\u003c\/p\u003e","brand":"Enduro Bearings","offers":[{"title":"Default Title","offer_id":45478805930159,"sku":"eb8448","price":11.29,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0654\/2003\/4223\/files\/1525172982-17085500.jpg?v=1768523273","url":"https:\/\/www.swinnertoncycles.co.uk\/products\/enduro-bearings-61903-29-5-srs-abec-5-sealed-bearing-17x29-5x7mm-for-hubs-bottom-brackets","provider":"Swinnerton Cycles","version":"1.0","type":"link"}