Probability of bearing housing radial clearance tolerance

Deterministic (worst-case) and probabilistic bush wall-thickness and radial bearing clearance, from housing bore, bush and shaft tolerances.

✓ validated against legacyoriginal: /calculators/c1_1c.htm

Probability of bearing housing radial clearance tolerance — original diagram from /calculators/c1_1c.htm

Housing bore 22H7, minµmHousing bore 22H7, maxµmBush outer 22p6, minµmBush outer 22p6, maxµmBush inner 18E7, minµmBush inner 18E7, maxµmShaft 18h6, minµmShaft 18h6, maxµmProbability, R(t)

Wall thickness, deterministic, min-14 µm

Wall thickness, deterministic, max1.5 µm

Wall thickness, probabilistic, min-10.56 µm

Wall thickness, probabilistic, max-1.94 µm

Radial clearance, deterministic, min-1.5 µm

Radial clearance, deterministic, max30 µm

Radial clearance, probabilistic, min7.95 µm

Radial clearance, probabilistic, max20.55 µm

Method & references

Bearing bush/housing radial-clearance tolerance stack-up (deterministic vs. probabilistic), per DIN ISO 286.

The computation is a literal port of the original client-side JavaScript from /calculators/c1_1c.htm. Results are verified equal to the original by an automated golden-master test. No formula has been re-derived or “improved”.

Probability of bearing housing radial clearance tolerance — Engineering ABC