Series L68100 Cone Part Number L68149 Cup Part Number L68110 Design Unit Inch Cage Material Stamped Steel Dimensions d - Bore 1.3775 in 34.989 mm D - Cup Outer Diameter 2.3280 in 59.131 mm B - Cone Width 0.6600 in 16.764 mm C - Cup Width 0.4700 in 11.938 mm T - Bearing Width 0.6250 in 15.875 mm Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius1 0.14 in 3.560 mm r - Cup Backface "To Clear" Radius2 0.05 in 1.27 mm da - Cone Frontface Backing Diameter 1.54 in 39 mm db - Cone Backface Backing Diameter 1.79 in 45.5 mm Da - Cup Frontface Backing Diameter 2.24 in 55.90 mm Db - Cup Backface Backing Diameter 2.09 in 53.09 mm Ab - Cage-Cone Frontface Clearance 0.06 in 1.5 mm Aa - Cage-Cone Backface Clearance 0.01 in 0.3 mm a - Effective Center Location3 -0.1 in -2.5 mm Basic Load Ratings C90 - Dynamic Radial Rating (90 million revolutions)4 2650 lbf 11800 N C1 - Dynamic Radial Rating (1 million revolutions)5 10200 lbf 45500 N C0 - Static Radial Rating 11000 lbf 48700 N Ca90 - Dynamic Thrust Rating (90 million revolutions)6 1890 lbf 8400 N Factors K - Factor7 1.4 e - ISO Factor8 0.42 Y - ISO Factor9 1.44 G1 - Heat Generation Factor (Roller-Raceway) 15.7 G2 - Heat Generation Factor (Rib-Roller End) 14.7 Cg - Geometry Factor10 0.0657