WHAT IS A HYBEID CERAMIC BEARING? A ceramic hybrid bearing is a combination of ceramic balls and bearing quality steel rings. Which combine hardened steel rings with rolling elements made of high-performance ceramic materials, are an increasingly popular option for demanding applications. The hub is the central part of your bike's wheels (front and rear), which connects to the wheel's rim via the spokes and through which the axle is fitted, enabling the wheel to freely spin on two sets of bearings.As bikes have front and rear wheels, so too have they front- and rear-specific hubs. The front hub is simply designed to enable the wheel to spin, while the rear hub is a little more complex as it also forms part of the bike's transmission ? the cassette or sprocket which drives the rear wheel is attached to the rear hub, which on most bikes also features mechanism to allow you to coast or freewheel (exceptions being fixed-gear or 'fixie' bikes and track bikes).Your wheels spin more than any other part of your bike. Therefore, having the best bearings in this application is crucial to producing the best results. BEARING STRUCTURE: 52100 Chrome Steel Outer Ring & Inner Ring +Si3N4 Ceramic Balls +Nylon Cage +Grease + Sealed = HYBID CERAMIC BEARINGS Model: 24377 RS Structure: Ceramic Ball Bearing Bore Dia (d): 24 mm Outer Dia (D): 37 mm Width (B): 7 mm Closures: Rubber Sealed (2RS) Lubrication: Grease Weight: 20 g Quantity: 1 Lot = 1 PC
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