Bearing Tolerance Symbols & Definitions

Update date: 2017-09-28 11:34�� Attention: | Inquiry entry: sales@fv-bearing.com

d/ds	Nominal bore diameter/Single bore diameter
dmp	Mean bore diameter; arithmetical mean of the largest & smallest single bore diameters measured in one radial plane
dmp	dmp-d; Deviation of mean bore diameter from the nominal dimension
ds	ds-d; deviation of single bore diameter from the nominal dimension
Vdp	Bore diameter variation; difference between the largest & smallest single bore diameters in one radial plane
Vdmp	dmp max-dmp min; Mean bore diameter variation; difference between the largest & smallest mean bore diameters
D/DS	Nominal outside diameter/Single outside diameter
Dmp	Mean outside diameter; arithmetical mean of the largest & smallest single outside diameters in one radial plane
dmp	Dmp-D; Deviation of mean outside diameter from nominal dimension
Ds	Ds-D; Deviation of mean outside diameter from nominal dimension
Vdp	Outside diameter variation; difference between the largest & smallest single outside diameter in one radial plane
VDmp	Dmp max-Dmp min; Mean outside diameter variation; difference between the largest & smallest mean outside diameters
Bs/Cs	Single inner ring/outer ring width
Bs	Bs-B; Deviation of a single inner ring width from nominal dimension
Cs	Cs-C; Deviation of a single outer ring width from nominal dimension
VBs	Bs max-Bs-min; Variation of inner ring widths; difference between the largest & smallest single inner ring width
VCs	Cs max-Cs min; Variation of outer ring widths; difference between the largest & smallest single outer ring width
B,C,T	Nominal bearing width/height
Ts	Actual bearing width/height
Ts	Deviation of the actual bearing width/height
Kia	Radial runout of assembled bearing inner ring
Kea	Radial runout of assembled bearing outer ring
Sd	Side face runout of inner ring with reference to bore
SD	Variation in inclination of outside cylindrical surface to outer ring side face
Sia	Axial runout; assembled bearing inner ring face runout with raceway
r	Norminal chamfer dimension
rs	Radial/axial single chamfer dimension
rs min	Smallest radial/axial single chamfer dimension
rs max	Largest radial/axial single chamfer dimension