Cartridge bearing with metal cage separated Grade 10 ball design . Includes rubber dual lip labyrinth seals. 90% filled with the highest quality grease.90% filled with Mobilux NGLI 2 synthetic grease, dual-lip labyrinth seals. If the bearing you are replacing is not marked with a manufacturer number, measure it and compare to specifications listed. Item Specifications: Bearing I.D. (mm), 12, Manufacturer Number, 6801, Bearing O.D. (mm), 21, Material, Stainless Steel, Thickness, 5, Bearing Number, 6801, ID x OD x Width (mm), 12x21x5,.
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