Ceramicspeed coated deep groove ball bearing 61903 17 mm x 30 mm x 7 mm

Product Description CeramicSpeed ball bearing Coated Designation 61903 - Coated ceramic bearing for top performance The CeramicSpeed Coated deep groove ball bearing 61903 with the dimensions 17 mm x 30 mm x 7 mm impresses with extra-hard, super-smooth and heavy-duty ceramic bearing balls. The rings were additionally coated with metal, which increases durability. Specifications:Dimensions (Inner x Outer x Width):17 mm x 30 mm x 7 mmDesignation:61903 (6903)Models:61903: Design:deep groove ball bearingsTolerance:ABEC 3Recommended Use:hubs, bottom brackets, headsetsInner Race Material:steelOuter Race Material:steelBall Material:CeramicFeatures:high-performance bearings with special ceramic balls made of grade 3 silicon nitride (best achievable degree for ceramic bearings)CeramicSpeed bearing balls: 15% harder, 100% smoother and 99% more resilient than commercially available ceramic ballsball bearing retainer made of reinforced polyamide, race made of hardened steel with polished channeladditional metal-coated race for more performance and durabilityenergy savings thanks to greatly reduced friction, higher top speed thanks to improved power transfersuitable for all disciplines: road, time trial, triathlon, track, cyclocross, MTBhandmade in DenmarkManufacturer Number:101275 Contents:1 x CeramicSpeed 61903 Coated ball bearing Manufacturer: CeramicSpeed Sport A/S Noergaardsvej 3 7500 Holstebro Denmark info@ceramicspeed.com