NTN 5307 Double Row Angular Contact Bearing 35 mm Bore, 80 mm OD, 1.3750 in Width, Open, Without Snap Ring, 25 ° Contact Angle Series_04^6800 Measuring range 40~52mmX0 343 8392 Measuring range 40~52mmX0 Static Rating(N) Clearance sign No Preload No Contact angle(Degree) 40 Holder Symbol No Symbol of Bearing Ring Shape No Seal Table 3 shows information on using duplex (side by side) angular contact ball bearings Angular contact ball bearings are non separable bearings with a defined contact angle in the radial direction relative to the straight line that runs through the point where each ball makes contact with the inner and outer rings (see Fig