Prufi
PRU-180Declared input

Retaining groove bottom radius too large

Joining · Machining

Scope and limits

Selected Smalley shaft/housing groove bottom radius maximum 0.127 mm for measured host diameter at most 25.4 mm, else 0.254 mm; no load qualification.

Standards and references

SMALLEY-RETAINING-GROOVE:web-2026-10-03

Smalley — Retaining ring load capacity, groove radius and edge margin

Source scope
Selected Smalley shaft or housing retaining groove. Table limits bottom radius to 0.005in for shaft/housing diameter <=1in, else0.010in. Edge margin of 3 times depth is explicitly approximate; actual shear and bending govern.
Implementation in Prufi
PRU180/181 measure selected full cylindrical groove floor, optional analytic quarter-circle toroidal bottom fillets, two perpendicular annular shoulders and coaxial hosts to physical perpendicular end faces on one assessed valid solid. No retained-part radius inference, load, dynamic, eccentric or safety certification.

STEP examples for this check

No public STEP example is currently assigned to this check.

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