A tapered roller bearing comprising: an outer ring having an outer ring raceway surface undergoing crowning, wherein the width of the outer ring raceway surface of the outer ring in an axial direction is determined as SB, the taper angle of the outer ring raceway surface is determined as α, and the residual width dimension after curved surfaces of chamfering parts (22a, 23a) formed at both ends of the outer ring raceway surface that are removed from the whole width of the outer ring raceway surface are determined as T1 and T2, an inner ring having an inner ring raceway surface undergoing crowning, wherein the width of the inner ring raceway surface to the inner ring in an axial direction is determined as SK, a taper angle of the inner ring raceway surface is determined as β, and chamfering dimensions formed at both ends of the of the inner ring raceway surface are determined as L1 and L2, and a plurality of tapered rollers having a rolling surface undergoing crowning, which are located as rolling universally between said outer and inner ring raceway surfaces (21, 11), wherein the width of the rolling surface of the tapered roller in a center axial direction is determined as L, the taper angle of the rolling surface is determined as γ, and the residual width dimensions after curved surfaces of chamfering parts (32a, 33a) formed at both ends of the rolling surface that are removed from the whole width of the rolling surface are determined as S1 and S2; characterized in that; a crowning mount of the inner ring is determined as a distance dimension from a center point of a crowning circular arc of a raceway length LRI to the center point of a crowning chord on the raceway length LRI, the raceway length LRI defined according to the equation, LRI = SK / cosβ − L 1 + L 2; a roller crowning amount is determined as a distance dimension from a center point of a crowing circular arc of a roller effective length LWR to the center point of a crowning chord on the roller effective length LWR, the roller effective length LWR defined according to the equation, LWR = L / cos γ / 2 − S 1 + S 2; and an outer ring crowning amount is determined as a distance dimension from a center point of a crowning circular arc of a raceway length LRO to the center point of a crowning chord on the raceway length LRO, the raceway length LRO defined according to the equation, LRO = SB / cosα − T 1 + T 2; wherein the total crowning amount, which is equal to the outer ring crowning amount plus the crowning amount of the inner ring plus twice the roller crowning amount, is 50 μm or more, and wherein the crowning ratio of the outer ring, which is equal to the outer ring crowning amount divided by the total crowning amount, is 40% or more, and the roller crowning ratio, which is equal to twice the roller crowning amount divided by the total crowning amount, is 20% or less. an outer ring having an outer ring raceway surface undergoing crowning, wherein the width of the outer ring raceway surface of the outer ring in an axial direction is determined as SB, the taper angle of the outer ring raceway surface is determined as α, and the residual width dimension after curved surfaces of chamfering parts (22a, 23a) formed at both ends of the outer ring raceway surface that are removed from the whole width of the outer ring raceway surface are determined as T1 and T2, an inner ring having an inner ring raceway surface undergoing crowning, wherein the width of the inner ring raceway surface to the inner ring in an axial direction is determined as SK, a taper angle of the inner ring raceway surface is determined as β, and chamfering dimensions formed at both ends of the of the inner ring raceway surface are determined as L1 and L2, and a plurality of tapered rollers having a rolling surface undergoing crowning, which are located as rolling universally between said outer and inner ring raceway surfaces (21, 11), wherein the width of the rolling surface of the tapered roller in a center axial direction is determined as L, the taper angle of the rolling surface is determined as γ, and the residual width dimensions after curved surfaces of chamfering parts (32a, 33a) formed at both ends of the rolling surface that are removed from the whole width of the rolling surface are determined as S1 and S2; characterized in that; wherein the total crowning amount, which is equal to the outer ring crowning amount plus the crowning amount of the inner ring plus twice the roller crowning amount, is 50 μm or more, and wherein the crowning ratio of the outer ring, which is equal to the outer ring crowning amount divided by the total crowning amount, is 40% or more, and the