NUP design bearings have two integral flanges on the outer ring and one integral flange and one non-integral flange, i.e. a loose flange ring, on the inner ring. They are are used to locate the shaft axially in both directions. Features: Low friction (Roller end / flange contact area) - The open flange design, together with the roller end design and surface finish, promote lubricant film formation resulting in lower friction and higher axial load carrying capacity. Long service life - The logarithmic roller profile reduces edge stresses at the roller/raceway contact and sensitivity to misalignment and shaft deflection. Enhanced operational reliability - The surface finish on the contact surfaces of the rollers and raceways supports the formation of a hydrodynamic lubricant film. Separable and interchangeable - The separable components of SKF cylindrical roller bearings are interchangeable. This facilitates mounting and dismounting, as well as maintenance inspections. High speed capability - The cage designs are suitable for high speeds, rapid accelerations and peak loads. Specifications: Dimension Standards: Boundary dimensions: ISO 15. HJ angle rings: ISO 246. Snap rings and grooves: ISO 464. Locating slots: ISO 20515. Tolerances: ISO 492. Radial Internal Clearance: ISO 5753-1.