Xem Studiomeasured geometrySK8 rod support for Ø8 rods
What are the dimensions of an SK8 shaft support? · Hardware · basis: SK8 catalogue dimensions: 42 × 14 base, Ø8 rod at 20 mm, M5 base holes 32 apart, M4 pinch screw
Long Earth Society build part. Flywheel shaft blocks and displacer guides on the LES engines. 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
- 6 in table
Notes
- A 42 × 14 block, 32 tall in the middle and 27 at the two stepped ends, with a Ø8 bore across the 14 mm thickness 20 mm above the base.
- A 1.5 mm slot runs from the bore up through the top; an M4 pinch screw closes it on the rod: Ø4.5 clearance on one side of the slot, Ø3.3 tap drill on the other, 28 mm above the base.
- Two Ø5.5 holes (M5 clearance) through the stepped ends, 32 mm apart.
Sizes
| feature | value_mm |
|---|---|
| base | 42 × 14 |
| height | 32 (27 at the ends) |
| rod bore | Ø8 at 20 |
| clamp slot | 1.5 |
| pinch screw | M4: Ø4.5 / Ø3.3 at 28 |
| base holes | 2 × Ø5.5 at 32 |
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 |
|---|---|---|---|---|
| rod clamp bore | Ø8 | Ø8 rod; the 1.5 split closes on it | clamp | rod-support-* |
| pinch screw holes | Ø4.5 / Ø3.3 | M4 clearance / M4 tap drill | designed | rod-support-* |
| base holes | Ø5.5 | M5 screw clearance | designed | rod-support-* |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| McMaster-Carr | Mounted bearings (free STEP per part, for your own design use; no redistribution) | STEP, PDF | McMaster-Carr site terms verify |
| McMaster-Carr | Sleeve bearings (free STEP per part, for your own design use; no redistribution) | STEP, PDF | McMaster-Carr site terms verify |
| OpenBuilds | Solid V wheel kit | web, STEP | OpenBuilds site verify |
| Wikipedia | Plain bearing | web | CC BY-SA 4.0 (text) |
| Long Earth Society | Engine and rig builds | web, video | LES site |
Free files
★ Free files 1 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json
| rod-support-sk8 | SK8 rod support: Ø8 split clamp, 20 mm centre height, two Ø5.5 (M5 clearance) base holes 32 mm apart, M4 pinch (Ø4.5 clearance / Ø3.3 tap drill) | STEP · STL |
Plain text: sheet.txt · JSON: /api/geometry?object=rod-support-sk8
How it fits
Connects to
Linear rod Ø8 × 300Ø8 rod clamped in the bore
SC8UU slide block for an LM8UUcarriage on the same rodAlso needed
LM8UU linear bearing Ø8 × Ø15 × 24rides on the rod between two supportsYou might also need
Questions
What are SK8 dimensions?
42 × 14 base, 32 tall, Ø8 rod 20 mm above the base, two M5 holes 32 mm apart, M4 pinch screw.
How does an SK8 hold the rod?
A 1.5 mm slot from the bore to the top; the M4 screw across it closes the bore on the Ø8 rod.