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Bearing pocket gauge for 623, 625 and 608 (Ø10 / Ø16 / Ø22, +0 / +0.2 / +0.4)
How tight should a 3D printed 608 bearing pocket be? · Hardware · basis: Pockets at the bearing OD (623 Ø10, 625 Ø16, 608 Ø22) and +0.2 / +0.4, 6 deep
Long Earth Society build part. Print these first to measure your allowances; every LES part is drawn at exact size. 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
- Every file on this site is drawn at exact size with no printing allowance; this gauge steps through sizes around the nominal so you can measure the allowance your process needs for one fit class, then apply it only to the features each object lists under Mating features.
- The gauge is a 100 × 36 × 8 mm block with nine pockets 6 mm deep: Ø10.0, 10.2, 10.4 (623), Ø16.0, 16.2, 16.4 (625), Ø22.0, 22.2, 22.4 (608).
- Press each bearing in with a thumb: the pocket that holds it, minus the bearing OD, is your bearing-pocket allowance.
- The three Ø22 pockets run out through the long edge of the block (they are 0.2–3.2 mm wider than the edge allows), which does not affect reading the bore.
Sizes
| bearing | od_mm | pockets_mm | depth_mm |
|---|---|---|---|
| 623 | 10 | 10.0 / 10.2 / 10.4 | 6 |
| 625 | 16 | 16.0 / 16.2 / 16.4 | 6 |
| 608 | 22 | 22.0 / 22.2 / 22.4 | 6 |
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 |
|---|---|---|---|---|
| gauge sizes | stepped around nominal | the true pin, nut, bearing or extrusion slot being tested | designed | all |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| Wikipedia | Engineering tolerance | web | CC BY-SA 4.0 (text) |
| Prusa | Knowledge base: XY size compensation | web | Prusa KB verify |
| 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
| bearing-pocket-gauge-623-625-608 | bearing pocket gauge, 100 × 48 × 8 block: Ø10.0/10.2/10.4 (623) and Ø16.0/16.2/16.4 (625) in the top row, Ø22.0/22.2/22.4 (608) in the bottom row, 6 deep, every pocket separate with at least 2.9 mm of wall to its neighbours and the block edges | STEP · STL |
Plain text: sheet.txt · JSON: /api/geometry?object=bearing-pocket-gauge
How it fits
Connects to
608 ball bearingØ22 OD into the 22.x pockets
Ball bearings, 683 to 6210 and flanged F6xx623 Ø10 and 625 Ø16 into their pocketsAlso needed
Printed pin gauges 2.8–3.2 and 4.8–5.2 mmthe bore side of the same bearingsYou might also need
Questions
What size pocket for a 608 bearing?
The bearing is Ø22; the pocket is drawn at Ø22.000 and this gauge shows how much your process needs on top.
Which bearings does the gauge cover?
623 (Ø10), 625 (Ø16) and 608 (Ø22).