Bearing tolerance symbols and definitions

Bearing tolerance symbols and definitions

D /ds Nominal bore diameter/ Nominal bore diameter

Mean bore diameter of DMP single plane;Arithmetical mean of the largest samallest single bore diamerers measured in one radial plane)

Delta DMP single plane average diameter deviation (dmp-d;Deviation of mean bore diameter from the nominal dimension)

Ds single diameter deviation (ds-d;Deviation of single bore diameter from the nominal dimension)

Bore diameter variation of Vdp single radial plane (Bore diameter variation;Difference between the largest and smallest single bore diameters in one radial plane)

Vdmp average diameter variation (DMP Max - DMP min);Mean bore diameter variation;Difference between the largest and smallest mean bore diameters)

D/Ds Nominal outside diameter/Single outside diameter

Dmp Mean outside diameter;Arithmetical mean of the largest and smallest single outside diameters in radial plane)

△Dmp single plane average outside diameter deviation (dmp-d;Deviation of mean outside diameter from nominal dimension)

Ds single outside diameter deviation (Ds-D;Deviation of mean outside diameter from nominal dimension)

VDp Outside diameter variation of a single radial planeDifference between the largest and single outside diameter in one radial plane)

VDmp mean diameter variation (Dmp Max -Dmp min);The Mean outside diameter variation;Difference between the largest and smallest mean outside diameters)

Bs/Cs inner ring/outer ring width

△Bs inner ring single width deviation (Bs-B;Deviation of a single inner ring width from nominal dimension)

△Cs outer ring single width deviation (cs-c;Deviation of a single outer ring width from nominal dimension)

VBs inner ring width variation (Bs max-bs-min;Variation of inner ring widths;Difference between the largest & smallest single inner ring width)

Width variation of outer ring of VCs (Cs Max -Cs min;Variation of outer ring widths;Difference between the largest & smallest single outer ring width)

B,C,T bearing Nominal width/height

Actual bearing width/height

Deviation of the actual bearing width/height (Deviation of the actual bearing width/height)

Kia set of bearing inner ring Radial runout (Radial runout of assembled bearing inner ring)

Kea complete sets of bearing outer ring Radial runout (Radial runout of assembled bearing outer ring)

Side face runout of inner ring with reference to bore

SD bus outside surface of reference face inclination change quantity (Variation in inclination of outside cylindrical surface to the outer ring side face)

Sia complete bearing inner ring Axial runout (Axial runout;Assembled bearing inner ring face runout with raceway)

Axial runout (Axial runout;Assembled bearing;Outer ring face runout with raceway)

R nominal chamfer dimension (Norminal chamfer dimension)

Rs Radial/axial single chamfer dimension (Radial/axial single chamfer dimension)

Rs min minimum radial/axial single chamfer dimension (line radial/axial single chamfer dimension)

Rs Max Largest single radial/axial chamfer dimension (Largest radial/axial single chamfer dimension)