LEGEND  Tapered roller bearings

d = Inner diameter in mm
D = Outer diameter in mm
T = Height in mm
C = Width Außenring in mm
B = Bearing width Innenring in mm

Cr (N) = Dynamic load rating in Newton (N)
Cor (N) = Static load rating in Newton (N)

N = kg * 9.8 
kg = N / 9.8

rpm = maximum rounds / minute * 1000

Prefix E / Suffix J = Heavy duty execution. Measurements correspond to ISO Standards.

Suffix D: Series 303 .. D has a larger contact angle and is well suited for higher axial load ratings. This series is designated with 313 .. by other manufacturers.