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Shafts, D-flats, set-screw collars, E-clips (DIN 6799) and circlips (DIN 471)

What groove does an E-clip for a 5 mm shaft need? · Hardware · basis: DIN 6799 E-clip and DIN 471 circlip groove dimensions; set-screw collar envelopes typical of metric catalogue parts; h6 precision rod

Long Earth Society build part. Flywheel and crank shafts with their clips and collars. The engines · all LES parts

sizes
22 in table

Notes

  • E-clip grooves (DIN 6799), shaft → groove Ø × width: 2 → 1.4 × 0.4; 3 → 2.3 × 0.5; 4 → 3.2 × 0.7; 5 → 4.0 × 0.7; 6 → 5.0 × 0.7; 8 → 6.0 × 0.9; 10 → 8.0 × 1.1 mm. Circlip grooves (DIN 471): 5 → 4.8 × 0.7; 6 → 5.7 × 0.8; 8 → 7.6 × 0.9; 10 → 9.6 × 1.1; 12 → 11.5 × 1.1; 15 → 14.3 × 1.1; 20 → 19.0 × 1.3 mm.
  • Set-screw collars: Ø3 bore 8 OD × 5; Ø5 10 × 6; Ø6 12 × 7; Ø8 16 × 8; Ø10 20 × 10; Ø12 22 × 10 (M3/M4/M5 screws). A collar each side of a bearing locates a shaft axially; a printed collar in PETG with an M3 holds a 5 mm shaft for light duty.
  • D-flat: 0.4 × d deep (5 mm shaft → 2 mm flat, leaving 3 mm), 20 mm long; a set screw seats on it. Precision rod is h6 (5 mm: 5.000/4.992); a printed Ø5.2 hole is a running fit, Ø4.9 press.
  • LES: Ø8 flywheel shafts in 608s with circlip grooves; Ø5 crank shafts in 625s with E-clips; collars where a clip groove is too much work.

Sizes

itemshaft_mmgroove_dia_mmgroove_w_mmcollar_od_x_w
E-clip21.40.4
E-clip32.30.5
E-clip43.20.7
E-clip54.00.7
E-clip65.00.7
E-clip86.00.9
E-clip108.01.1
circlip43.80.5
circlip54.80.7
circlip65.70.8
circlip87.60.9
circlip109.61.1
circlip1211.51.1
circlip1514.31.1
circlip2019.01.3
collar38 × 5, M3
collar49 × 5, M3
collar510 × 6, M3
collar612 × 7, M3
collar816 × 8, M4
collar1020 × 10, M4
collar1222 × 10, M5

Where the files are

Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.

WikipediaCirclipwebCC BY-SA 4.0 (text)
WikipediaRetaining ringwebCC BY-SA 4.0 (text)
McMaster-CarrShaft collars (free STEP per part, for your own design use; no redistribution)STEP, PDFMcMaster-Carr site terms verify
McMaster-CarrRetaining rings (free STEP per part, for your own design use; no redistribution)STEP, PDFMcMaster-Carr site terms verify
Long Earth SocietyEngine and rig buildsweb, videoLES site

Free files

★ Free files 32 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json

collar-3mmset-screw shaft collar Ø3 bore, OD 8, 5 wide, M3STEP · STL
collar-4mmset-screw shaft collar Ø4 bore, OD 9, 5 wide, M3STEP · STL
collar-5mmset-screw shaft collar Ø5 bore, OD 10, 6 wide, M3STEP · STL
collar-6mmset-screw shaft collar Ø6 bore, OD 12, 7 wide, M3STEP · STL
collar-8mmset-screw shaft collar Ø8 bore, OD 16, 8 wide, M4STEP · STL
collar-10mmset-screw shaft collar Ø10 bore, OD 20, 10 wide, M4STEP · STL
collar-12mmset-screw shaft collar Ø12 bore, OD 22, 10 wide, M5STEP · STL
eclip-2mmDIN 6799 E-clip for Ø2 shaft: groove Ø1.4 × 0.4 wideSTEP · STL
eclip-3mmDIN 6799 E-clip for Ø3 shaft: groove Ø2.3 × 0.5 wideSTEP · STL
eclip-4mmDIN 6799 E-clip for Ø4 shaft: groove Ø3.2 × 0.7 wideSTEP · STL
eclip-5mmDIN 6799 E-clip for Ø5 shaft: groove Ø4.0 × 0.7 wideSTEP · STL
eclip-6mmDIN 6799 E-clip for Ø6 shaft: groove Ø5.0 × 0.7 wideSTEP · STL
eclip-8mmDIN 6799 E-clip for Ø8 shaft: groove Ø6.0 × 0.9 wideSTEP · STL
eclip-10mmDIN 6799 E-clip for Ø10 shaft: groove Ø8.0 × 1.1 wideSTEP · STL
circlip-4mmDIN 471 external circlip for Ø4 shaft: groove Ø3.8 × 0.5 wideSTEP · STL
circlip-5mmDIN 471 external circlip for Ø5 shaft: groove Ø4.8 × 0.7 wideSTEP · STL
circlip-6mmDIN 471 external circlip for Ø6 shaft: groove Ø5.7 × 0.8 wideSTEP · STL
circlip-8mmDIN 471 external circlip for Ø8 shaft: groove Ø7.6 × 0.9 wideSTEP · STL
circlip-10mmDIN 471 external circlip for Ø10 shaft: groove Ø9.6 × 1.1 wideSTEP · STL
circlip-12mmDIN 471 external circlip for Ø12 shaft: groove Ø11.5 × 1.1 wideSTEP · STL
circlip-15mmDIN 471 external circlip for Ø15 shaft: groove Ø14.3 × 1.1 wideSTEP · STL
circlip-20mmDIN 471 external circlip for Ø20 shaft: groove Ø19.0 × 1.3 wideSTEP · STL
shaft-3x100precision shaft Ø3 × 100STEP · STL
shaft-4x100precision shaft Ø4 × 100STEP · STL
shaft-5x100precision shaft Ø5 × 100 with 20 mm D-flat (0.4 d deep)STEP · STL
shaft-5x200precision shaft Ø5 × 200 with 20 mm D-flat (0.4 d deep)STEP · STL
shaft-6x150precision shaft Ø6 × 150 with 20 mm D-flat (0.4 d deep)STEP · STL
shaft-8x200precision shaft Ø8 × 200 with 20 mm D-flat (0.4 d deep)STEP · STL
shaft-8x300precision shaft Ø8 × 300 with 20 mm D-flat (0.4 d deep)STEP · STL
shaft-10x200precision shaft Ø10 × 200STEP · STL
shaft-8x100-groovedØ8 × 100 with DIN 471 circlip grooves at 10 and 88 mm and a D-flatSTEP · STL
shaft-5x80-groovedØ5 × 80 with DIN 6799 E-clip grooves at 8 and 70 mm and a D-flatSTEP · STL

Plain text: sheet.txt · JSON: /api/geometry?object=shaft-collars-clips-and-shafts

Shafts, D-flats, set-screw collars, E-clips (DIN 6799) and circlips (DIN 471), isometric render of a generated part
Render of collar-8mm from the free STEP; not to scale.

Fits with

Questions

What groove size for an E-clip on a 5 mm shaft?

Ø4.0 mm groove, 0.7 mm wide (DIN 6799 size 4). For a 3 mm shaft: Ø2.3 × 0.5; 8 mm: Ø6.0 × 0.9.

What is the circlip groove for an 8 mm shaft?

DIN 471: Ø7.6 mm, 0.9 mm wide; the clip is 0.8 mm thick. 10 mm shaft: Ø9.6 × 1.1.

How deep is a D-flat on a 5 mm shaft?

Usually 0.4 × d = 2 mm deep (3 mm remaining), 15–25 mm long; set screws seat on it so the pulley can't spin.

What size shaft collar for an 8 mm shaft?

16 mm OD, 8 mm wide, M4 set screw (typical metric catalogue size); the 5 mm collar is 10 × 6 with an M3.