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Tolerance symbolsdnominal bore diameterd S
D outside inclination variation; variation in inclination of outside cylindrical surface to outer ring side faceS ∆
mp mean bore diameter; arithmetical mean of the largest and smallest single bore diameters in one plane ∆
i , S
e thickness variation, measuredfrom middle of raceway to back(seating) face of shaft washer andof housing washer, respectively(axial runout)
dmp deviation of the mean bore dia- meter from the nominal (
dmp = d
mp – d)V
dp bore diameter variation; difference between the largest and smallestsingle bore diameters in one planeV
dmp mean bore diameter variation; dif-ference between the largest andsmallest single bore diameters inone planeDnominal outside diameter D

Needle roller bearings (4703 /IE) - 5564 2

mp mean outside diameter; arith- metical mean of the largest andsmallest single outside diametersin one plane ∆
Dmp deviation of the mean outside diameter from the nominal ( ∆
Dmp = D
mp – D)V
Dp outside diameter variation; differ- ence between the largest andsmallest single outside diametersin one planeV
Dmp mean outside diameter variation;difference between the largestand smallest mean bore dia- meters of one ring or washerB
s , C
s single width of inner ring and outer ring, respectively ∆
Bs , ∆
Cs deviation of single inner ring widthor single outer ring width from thenominal ( ∆
Bs = B
s – B; ∆
Cs = C
s – C)V
Bs , V
Cs ring width variation; difference between the largest and smallestsingle widths of inner ring and ofouter ring, respectivelyT ∆
s single height (H) of single direction thrust bearing
Ts deviation of single height of thrust bearing from the nominal( ∆
Ts = T
s – T) K
ia , K
ea radial runout of assembled bearing inner ring and assembledbearing outer ring, respectivelyS
d side face runout with reference to bore (of inner ring)15