QualificationExact sourced interface · assembled guide unqualified
ArticleSSFJ4-82 · 440C stainless steel equivalent
EnvelopeØ4 × 82 mm
Diameterg6 · -0.008 / -0.002 mm
Hardness≥ 56 HRC
Intended sliderigus-dst-rfrm-3d-02-ds8x8
Geometry authority: manufacturer-drawing
Datum: Shaft axis +X; cut end at x = 0; circular center y = z = 0.
Exact configured SSFJ family, 4 mm nominal g6 diameter, 82 mm ordered length, SUS440C-equivalent material, and 56 HRC minimum hardness from the manufacturer catalog. The solid is the sourced cylindrical exterior envelope, not a measurement of a delivered article. Straightness, cut-end condition, surface finish, friction in the igus flange-nut mounting bores, fastenerless socket retention, contamination response, wear, and Belfry suitability remain physically unvalidated.