HH437549 Timken Tapered Roller Bearing Cone Only HH 437549 Heavy Duty Timken USA

HH437549 Timken Tapered Roller Bearing Cone Only This is the most basic and most widely used type of tapered roller bearing. It consists of two main separable parts: the cone (inner ring) assembly and the cup (outer ring). It is typically mounted in opposing pairs on a shaft. Unit of Measure Imperial Metric Both Specifications | Dimensions | Abutment and Fillet Dimensions | Basic Load Ratings | Factors Specifications Cone Part Number HH437549 Design Units Imperial Cage Type Stamped Steel C1 – Dynamic Radial Rating (Two-Row, 1 million revolutions) 1 648000 lbf 2880000 N C90(2) – Dynamic Radial Rating (Two-Row, 90 million revolutions) 2 168000 lbf 748000 N Dimensions d – Cone Bore 6 1/2 in 165.1 mm B – Cone Width 3.7500 in 95.250 mm Abutment and Fillet Dimensions R – Cone Backface “To Clear” Radius 3 0.13 in 3.300 mm da – Cone Frontface Backing Diameter 7.72 in 196 mm db – Cone Backface Backing Diameter 7.72 in 196 mm Ab – Cage-Cone Frontface Clearance 0.09 in 2.3 mm Aa – Cage-Cone Backface Clearance 0.43 in 10.9 mm a – Effective Center Location 4 -0.84 in -21.3 mm Basic Load Ratings C90 – Dynamic Radial Rating (90 million revolutions) 5 96500 lbf 429000 N C1 – Dynamic Radial Rating (1 million revolutions) 6 372000 lbf 1660000 N C0 – Static Radial Rating 434000 lbf 1930000 N C a90 – Dynamic Thrust Rating (90 million revolutions) 7 61400 lbf 273000 N Factors K – Factor 8 1.57 G1 – Heat Generation Factor (Roller-Raceway) 909.5 G2 – Heat Generation Factor (Rib-Roller End) 75.1 Cg – Geometry Factor 9 0.131 1 Based on 1 x 10 6 revolutions L 10 life, for the ISO life calculation method. 2 Based on 90 x 10 6 revolutions L 10 life, for The Timken Company life calculation method. C 90 and C a90 are radial and thrust values for a single-row, C 90(2) is the two-row radial value. 3 These maximum fillet radii will be cleared by the bearing corners. 4 Negative value indicates effective center inside cone backface. 5 Based on 90 x 10 6 revolutions L 10 life, for The Timken Company life calculation method. C 90 and C a90 are radial and thrust values. 6 Based on 1 x 10 6 revolutions L 10 life, for the ISO life calculation method. 7 Based on 90 x 10 6 revolutions L 10 life, for The Timken Company life calculation method. C 90 and C a90 are radial and thrust values for a single-row, C 90(2) is the two-row radial value. 8 These factors apply for both inch and metric calculations. Consult your Timken representative for instruction on use. 9 Geometry constant for Lubrication Life Adjustment Factor a3l.