Series HM903200 Cone Part Number HM903249 Cup Part Number HM903210 Design Unit Inch Cage Material Stamped Steel Dimensions d - Bore 1 3/4 in 44.450 mm D - Cup Outer Diameter 3.7500 in 95.250 mm B - Cone Width 1.1250 in 28.575 mm C - Cup Width 0.8750 in 22.225 mm T - Bearing Width 1.2188 in 30.958 mm Abutment and Fillet Dimensions R - Cone Backface "To Clear" Radius1 0.14 in 3.560 mm r - Cup Backface "To Clear" Radius2 0.03 in 0.76 mm da - Cone Frontface Backing Diameter 2.13 in 54 mm db - Cone Backface Backing Diameter 2.56 in 65.0 mm Da - Cup Frontface Backing Diameter 3.62 in 91.90 mm Db - Cup Backface Backing Diameter 3.19 in 81.03 mm Ab - Cage-Cone Frontface Clearance 0.11 in 2.8 mm Aa - Cage-Cone Backface Clearance 0.12 in 3 mm a - Effective Center Location3 0.02 in 0.5 mm Basic Load Ratings C90 - Dynamic Radial Rating (90 million revolutions)4 7950 lbf 35400 N C1 - Dynamic Radial Rating (1 million revolutions)5 30700 lbf 136000 N C0 - Static Radial Rating 29700 lbf 132000 N Ca90 - Dynamic Thrust Rating (90 million revolutions)6 10100 lbf 44800 N Factors K - Factor7 0.79 e - ISO Factor8 0.74 Y - ISO Factor9 0.81 G1 - Heat Generation Factor (Roller-Raceway) 33.7 G2 - Heat Generation Factor (Rib-Roller End) 9.91 Cg - Geometry Factor10 0.101