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Venditore: meluccicuscinetti (428) 100%, Luogo in cui si trova l'oggetto: Napoli, NA, Spedizione verso: Americas, Europe, Numero oggetto: 282676626977 C0 6805 VV (25X37X7mm), ORIGINAL ENDURO ZERO CERAMIC Bicycle Bike Bearing/ Cuscinetto originale ENDURO CERAMICO per bicicletta. (C0 6805 VV) Bearing size (dimensioni): 25mm(ID) X 37mm(OD) X 7mm(Width) ZERØ Ceramic GradeProven time and again in World Cup race conditions, the ZERØ Ceramic bearings are the ultimate race day weapon. Oversized Grade 3 balls roll on races which are ground to a mirror finish after receiving Magnetite and then Cryogenic treatments for hardness and longevity. More durable and with even lower rolling resistance than any 2RS bearings, they come closer to that magic “zero” rolling resistance number. Enduro Bearings uses Silicone seals which are more slippery than rubber seals used by other ceramic bearing suppliers. We get more email and blog feedback on the ZERØ's than any other bearing, describing the noticed difference in downhill rolling speed. And they win the independent wattage output tests when stacked against the competition. If you want to buy raw speed, ZERØ bearings are it. ENDURO ZERØ CERAMIC HYBRID THE BALLS are made in the USA from pure Silicon Nitride with extreme high density from uniform compaction (3.25 g/cm3). The micro-structural development of this material during manufacture is second to none. These high precision Grade 3, SI3N4 pure ceramic balls are 3/1,000,000” from exactly round in sphericity. They are 60% lighter in weight, and 7 times harder than steel. Friction is reduced to near zero. THE RACES for the ZERØ series feature vacuum de-gassed alloy steel hardened to Rockwell C-64. These high precision races are cryogenically treated not once, but three times during the final "super polishing" phase. Cryogenic treatment means taking the races down to minus 300º Fahrenheit to nomalize the crystalline structure of the material so that the races will resist the hardness of the ceramic balls and get the maximum wear potential. This critical treatment to the races is left out by many manufacturers, but not by Enduro. THE RETAINERS are nylon with Graphite and are virtually frictionless. THE SEALS are "VV" non-contact labyrinth type, with 2 sealing lips. They have been upgraded from NBR rubber to silicone. DA MELUCCI DISPONIBILI TUTTE LE TIPOLOGIE DI CUSCINETTI ENDURO PER MTB/ AT MELUCCI YOU CAN FIND ALL THE TYPES OF ENDURO BIKE BEARINGS FOR MTB !!! WWW.MELUCCICUSCINETTI.COM Condition: Nuovo, Unità di misura: Unità, Marca: ENDURO, MPN: Non applicabile

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