This type bearing has a very high radial load capacity but no axial load capacity. With relative smaller radial measurements, it gives a higher limiting speed. Fc type has two outer rings with ribs, full set of outer ring(ourter ring, rollers and cages), and one inner ring. Cages are rib-type. Fcd type has two outer rings with ribs, full set of outer ring(ourter ring, rollers and cages), and two inner rings. Cages are rib-type. Fcdp type has two outer rings without ribs, full set of rollers and cages, two inner rings, two rib rings and one middle snap rib ring, Cages are pin-type. In the view of position of lubricating bore, they have following types Fc: the sides of outer ring have lubricating groove Fc/a1: the radial surface has lubricating groove and oil bore¡£ Fcd: the sides of outer ring have lubricating groove. Fcd/a1:the radial surface of outer ring has lubricating groove and oil bore. Fcd/a13:both the sides and radial surfaces have lubricating groove and oil bore. Fcdp:the radial surfaces of both outer ring and middle rib ring have lubricating groove and oil bore. 80x80x80cm