docs/CC-DIN988-DS-15x21.pdf

Datasheet — 15x21 Shim Washer (Shim Ring), DIN 988 by Milo

CC-DIN988-DS-15x21 revA Size datasheet - 15x21

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DIN 988 15x21 shim ring

Size datasheet: this size's values with their levels, conventions and sources.

Fits a 15 mm shaft, ina 21 mm bore Thicknesses 0.1-0.15-0.2-0.3-0.5-1-

Part keys din988-15x21x0-1 ... din988- 15x21x2

Files 8 STEP AP214 (simplified), one

per thickness 15x21, front view, 2:1 15x21, view from above, 1:1

Sym. _ Dimensi Value Level

d1 Bore, D12 (band middle) 15.14 11-3 15.05-15.23

d2 Outside, d12 (band middle) 20.83 1: 3

20.725-20.935

h Thickness, nominal = max (a file each) 0.1 - 0.15 -60.2-0.3-05-1:1.5-2 1-2

Modeled value: d1 and d2 at the middle of their ISO 286-2 band (grey: its limits), h at its nominal. * amber: one source (LO). c: a source value was corrected. Level - independent sources.

DIN 988:1990-03 (as tabulated) - ISO 286-2 (D12, d12) Page 1/2 Shim ring - 15x21 - Dimensions in mm - CC-BY 4.0, lronPixel Labs LLC spec 091135b88172de29a46c1a2ac9916F747F26acf7

Modeled from cited sources; not certified. Found an error? Use the feedback section on the part page.

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CC-DIN988-DS-15x21 revA Size datasheet - 15x21

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Conventions

« Edges: Sharp on both faces, outside and bore: no edge break, die-roll or burr.

e Walls and faces: The bore and the outside are true cylinders at d1 and d2, concentric, square to flat, parallel faces; the concentricity and flatness tolerances aren't modeled.

e Values: d1 and d2 at the middles of their ISO 286-2 bands, D12 wholly above the d1 nominal and d12 wholly below the d2 nominal; h at its nominal, which is the maximum. One file per standard thickness that two sources confirm.

« Markings and material: No markings. Material and finish (bright steel, A2) are metadata only: one model per size and thickness.

« Listed by one source only, not generated: h = 1.1, 1.2, 1.3, 1.4, 1.6, 1.7, 1.8, 1.9.

Sources

Source Publisher Retrieved sha256

bossard-iso286-2-tolerances Bossard 2026-10-30 e872fdb362e6 (kept outside the repo) fasteners-eu-din988-is0286 fasteners.eu 2026-10-30 42f9634cc78a

fasteners-eu-din988 fasteners.eu 2026-10-30 42f9634cc78a

fasten-it-din988 fasten.it 2026-10-30 401156c0046e schrauben-lexikon-din988 schrauben -lexikon.de (Wegertseder) 2026-10-30 8158b9F48271

dinmark-din988 Dinmark (Ukraine) 2026-10-30 13f1237ee4d5

schraubenluchs-din988 Schraubenluchs 2026-10-30 6e4b2caa8de8

The whole series (verification map, corrections, drawings): CC-DIN988-DS.

DIN 988:1990-03 (as tabulated) - ISO 286-2 (D12, d12) Page 2/2 Shim ring - 15x21 - Dimensions in mm - CC-BY 4.0, lronPixel Labs LLC spec 091135b88172de29a46c1a2ac9916F747F26acf7

Modeled from cited sources; not certified. Found an error? Use the feedback section on the part page.

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