Xem Studiomeasured geometryMGN9, MGN12 and MGN15 rails, 150 to 400 mm
What are the MGN12 rail dimensions and hole spacing? · Hardware · basis: HIWIN MGN catalogue rail section, hole pitch and counterbore (other brands match)
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
- Rail section W × H: MGN9 9 × 6.5; MGN12 12 × 8; MGN15 15 × 10. Lengths 150, 200, 300, 400.
- Holes Ø3.5 through with a Ø6 counterbore, 3.5 deep on MGN9 and 4.5 on MGN12 / MGN15, for M3 socket heads. Pitch 20 (MGN9), 25 (MGN12), 40 (MGN15).
- Holes are centred along each rail: the end hole sits 12.5 from the end on every MGN12; 5 (150) or 10 on the MGN9; 15, 20, 10 and 20 on the MGN15 150–400.
- Rail section drawn as a plain rectangle; the carriage files have the rail channel at this section.
Sizes
| rail | W | H | pitch | hole | counterbore | end hole (150/200/300/400) |
|---|---|---|---|---|---|---|
| MGN9 | 9 | 6.5 | 20 | Ø3.5 | Ø6 × 3.5 | 5 / 10 / 10 / 10 |
| MGN12 | 12 | 8 | 25 | Ø3.5 | Ø6 × 4.5 | 12.5 / 12.5 / 12.5 / 12.5 |
| MGN15 | 15 | 10 | 40 | Ø3.5 | Ø6 × 4.5 | 15 / 20 / 10 / 20 |
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 |
|---|---|---|---|---|
| rail holes | Ø3.5 through, counterbore Ø6 × 3.5 (MGN9) / 4.5 | M3 socket head screws | designed | all |
| carriage holes | M3 (Ø3 major) | M3 screws | designed | all |
| rail section | 9 × 6.5 / 12 × 8 / 15 × 10 | carriage channel | designed | all |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| HIWIN | MGN series linear guideway catalogue | PDF, STEP | HIWIN site terms verify |
| Wikipedia | Linear-motion bearing | web | CC BY-SA 4.0 (text) |
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
| mgn9-rail-150 | MGN9 rail 150 mm, 20 mm hole pitch | STEP · STL |
| mgn9-rail-200 | MGN9 rail 200 mm, 20 mm hole pitch | STEP · STL |
| mgn9-rail-300 | MGN9 rail 300 mm, 20 mm hole pitch | STEP · STL |
| mgn9-rail-400 | MGN9 rail 400 mm, 20 mm hole pitch | STEP · STL |
| mgn12-rail-150 | MGN12 rail 150 mm, 25 mm hole pitch | STEP · STL |
| mgn12-rail-200 | MGN12 rail 200 mm, 25 mm hole pitch | STEP · STL |
| mgn12-rail-300 | MGN12 rail 300 mm, 25 mm hole pitch | STEP · STL |
| mgn12-rail-400 | MGN12 rail 400 mm, 25 mm hole pitch | STEP · STL |
| mgn15-rail-150 | MGN15 rail 150 mm, 40 mm hole pitch | STEP · STL |
| mgn15-rail-200 | MGN15 rail 200 mm, 40 mm hole pitch | STEP · STL |
| mgn15-rail-300 | MGN15 rail 300 mm, 40 mm hole pitch | STEP · STL |
| mgn15-rail-400 | MGN15 rail 400 mm, 40 mm hole pitch | STEP · STL |
Plain text: sheet.txt · JSON: /api/geometry?object=mgn-rails
How it fits
Goes in or on
2020 aluminum extrusionscrewed to the extrusion faceConnects to
MGN9C/H, MGN12C/H and MGN15H carriagescarriage channel at the rail sectionAlso needed
Socket head cap screws, M2–M8M3 in the counterboresYou might also need
Questions
What is the hole spacing on an MGN12 rail?
25 mm, Ø3.5 holes with a Ø6 counterbore 4.5 deep for M3. MGN9 is 20 (counterbore 3.5 deep), MGN15 40.
What size is an MGN12 rail?
12 wide × 8 tall.