SKF rod end inner ring tolerances

SKF rod end inner ring dimensional tolerances are in accordance with ISO 12240-4:1998. The tolerances for the steel/steel rod end inner rings are listed as below:

Inner ring dimensional tolerances for steel/steel, SKF Explorer steel/steel and steel/bronze rod ends

Bore diameter Series Series Series
    SA(A), SI(A), SIJ, SIR, SC, SCF SIQG SIKAC, SAKAC
d   Δdmp ΔBs Δdmp ΔBs Δdmp ΔBs
over incl. high low  high low  high low  high low  high low  high low 
mm   μm   μm   μm   μm   μm   μm  
2,5  -8  -120  10  -120 
3 6 0 -8 0 -120 - - - - 12 0 0 -120
6 10 0 -8 0 -120 - - - - 15 0 0 -120
10 18 0 -8 0 -120 18 0 0 -180 18 0 0 -120
18 30 0 -10 0 -120 21 0 0 -210 21 0 0 -120
30 50 0 -12 0 -120 25 0 0 -250 - - - -
50 80 0 -15 0 -150 30 0 0 -300 - - - -
80 120 0 -20 0 -200 35 0 0 -350 - - - -
120 180 - - - - 40 0 0 -400 - - - -
180 250 - - - - 46 0 0 -460 - - - -
  • d: nominal bore diameter
  • Δdmp: deviation of the mean bore diameter from the nominal in a single plane
  • ΔBs: deviation of the single inner ring width from the nominal 
  • Please refer to SKF bearing tolerances.

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