Series  775 Cone Part Number  780 Cup Part Number  774D Design Units  Imperial Bearing Weight  22.9690 lb 10.4186 Kg Cage Type  Stamped Steel D - Cup Outer Diameter  7.1250 in 180.975 mm d - Cone Bore  4.0000 in 101.600 mm B - Cone Width  1.8900 in 48.006 mm C - Double Cup Width  3.3750 in 85.725 mm T - Bearing Width across Cones  4.1250 in 104.775 mm Z - Number of Rollers Per Row  21 Ka - Locking Pin Diameter  N/A Kb - Locking Pin Depth  N/A R - Cone Backface "To Clear" Radius1  0.140 in 3.600 mm r - Cup Frontface "To Clear" Radius2  0.06 in 1.5 mm db - Cone Backface Backing Diameter  4.69 in 119.10 mm Da - Cup Frontface Backing Diameter  6.65 in 168.90 mm Aa - Cage-Cone Backface Clearance  0.14 in 3.60 mm C90 - Dynamic Radial Rating (One-Row, 90 million revolutions)1  20200 lbf 89700 N C1 - Dynamic Radial Rating (Two-Row, 1 million revolutions)2  135000 lbf 603000 N C90(2) - Dynamic Radial Rating (Two-Row, 90 million revolutions)3  35100 lbf 156000 N Ca90 - Dynamic Thrust Rating (90 million revolutions)4  13300 lbf 59200 N K - Factor1  1.51 e - ISO Factor2  0.83 Y1 - ISO Factor3  0.82 1.22 Y2 - ISO Factor4  1.22 G1 - Heat Generation Factor (Roller-Raceway)5  227 G2 - Heat Generation Factor (Rib-Roller End)  38.2 Cg - Geometry Factor6  0.107

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