Xem Studiomeasured geometryLibrary › Stirling engines › Drives & mechanisms ·
Shaft spacers for Ø3, Ø5 and Ø8 shafts, 1 to 5 mm
What thrust spacers set the gaps along a small crankshaft? · Hardware · basis: Flat rings at the shaft Ø, OD = shaft + 5, in 1, 2, 3 and 5 mm thicknesses
Long Earth Society build part. The shafts, rods and pins every engine here turns on. The engines
Exact dimensions. Every file is drawn at true size with no printing tolerance. The holes and pins that meet another part are listed below under Mating features, with the fit each joint needs; open those by your printer's or process's clearance before making the part. Mating features
- sizes
- 3 in table
Notes
- Flat rings: Ø3 × Ø8, Ø5 × Ø10 and Ø8 × Ø13 (bore × OD), each 1, 2, 3 and 5 thick.
- Stacked on the shaft they set the 1 mm gaps between tower, web, rod and flywheel; any gap from 1 to 11 mm is a sum of the four.
- The bore is the shaft Ø; the fit is listed under Mating features.
Sizes
| shaft Ø | OD | thicknesses |
|---|---|---|
| 3 | 8 | 1 / 2 / 3 / 5 |
| 5 | 10 | 1 / 2 / 3 / 5 |
| 8 | 13 | 1 / 2 / 3 / 5 |
Mating features
Drawn at the exact size. Open press, slide, run and socket features by your process's clearance; leave designed gaps and clamp fits as drawn.
| feature | exact | mates with | fit | files |
|---|---|---|---|---|
| shafts, rods, pins | Ø3 / Ø5 / Ø8 | the bores listed on each mating object | slide | all |
| spacer bore | Ø3 / Ø5 / Ø8 | shaft | slide | spacer-* |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| Long Earth Society | Engine builds | web, video | LES site |
Free files
★ Free files 12 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json
| spacer-3mm-t1 | thrust spacer for a Ø3 shaft, 1 mm: sets the 1 mm gaps between tower, web, rod and flywheel | STEP · STL |
| spacer-3mm-t2 | thrust spacer for a Ø3 shaft, 2 mm: sets the 1 mm gaps between tower, web, rod and flywheel | STEP · STL |
| spacer-3mm-t3 | thrust spacer for a Ø3 shaft, 3 mm: sets the 1 mm gaps between tower, web, rod and flywheel | STEP · STL |
| spacer-3mm-t5 | thrust spacer for a Ø3 shaft, 5 mm: sets the 1 mm gaps between tower, web, rod and flywheel | STEP · STL |
| spacer-5mm-t1 | thrust spacer for a Ø5 shaft, 1 mm: sets the 1 mm gaps between tower, web, rod and flywheel | STEP · STL |
| spacer-5mm-t2 | thrust spacer for a Ø5 shaft, 2 mm: sets the 1 mm gaps between tower, web, rod and flywheel | STEP · STL |
| spacer-5mm-t3 | thrust spacer for a Ø5 shaft, 3 mm: sets the 1 mm gaps between tower, web, rod and flywheel | STEP · STL |
| spacer-5mm-t5 | thrust spacer for a Ø5 shaft, 5 mm: sets the 1 mm gaps between tower, web, rod and flywheel | STEP · STL |
| spacer-8mm-t1 | thrust spacer for a Ø8 shaft, 1 mm: sets the 1 mm gaps between tower, web, rod and flywheel | STEP · STL |
| spacer-8mm-t2 | thrust spacer for a Ø8 shaft, 2 mm: sets the 1 mm gaps between tower, web, rod and flywheel | STEP · STL |
| spacer-8mm-t3 | thrust spacer for a Ø8 shaft, 3 mm: sets the 1 mm gaps between tower, web, rod and flywheel | STEP · STL |
| spacer-8mm-t5 | thrust spacer for a Ø8 shaft, 5 mm: sets the 1 mm gaps between tower, web, rod and flywheel | STEP · STL |
Plain text: sheet.txt · JSON: /api/geometry?object=shaft-spacers
How it fits
Goes in or on
Crankshafts Ø3, Ø5 and Ø8 with full-length D-flatbore = shaft ØConnects to
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Questions
What spacer goes on a 5 mm crankshaft?
Ø5 bore × Ø10 OD, 1, 2, 3 or 5 thick.
How do I make a 4 mm gap?
Stack the 1 and 3, or two 2s.