SKF FW171 Ball Bearing (Double Row, Angular Contact, 2-Seals, Split Inner Ring) Sealed For Life Design Ensures Problem Free Operation Angular Bearing Contact Allows For Outstanding Durability While Supporting Both Radial And Axial Loads Available In Wide Variety Of Types, Designs, Sizes, And Materials Quality You Can Count On. Skf Has Been Making Ball Bearings For Over 100 Years Optimized operating clearances Glass fiber reinforced polyamide cages Premium grease