d = Nominal bearing bore diameter
dm = Bore Tolerances for all bearings within specific
D = Nominal bearing outside diameter
Dm = Outside Diameter Tolerances for all bearings
within specific O.D. diameters.
B = Width of bearing
T = Overall bearing width of Tapered Roller Bearings
Radial Runout =
- Inner Ring: The radial runout of a radial bearing is the difference between the maximum and minimum indicator readings taken on the bore while rotating the inner ring one revolution.
Outer Ring: The radial runout of a radial bearing outer ring is the difference between the minimum and maximum reading when rotating the outer ring one revolution with arbor stationary.
Axial Runout = Thrust Bearings - Maximum variation of shaft or housing washer thickness.
H = Bearing height - Thrust Bearings.