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SK shaft supports SK8–SK60: centre height, base, bolt spacing and hole size for linear rods
What are the SK8 to SK60 shaft support dimensions: centre height, width, base, bolt spacing and bolt hole? · Standard part · basis: Wangong's SK series table (manufacturer datasheet, hosted by Phidgets) checked against the Motion-and-Drives and Handsontec SK tables, which carry identical values
Also called: sk8 dimensions, sk8 shaft support centre height, sk10 shaft support, sk12 dimensions, sk16 bolt spacing, sk20 shaft support dimensions, sk25 dimensions, sk30 shaft support, 8mm rod support bracket, linear rail shaft support sk8 drawing
Exact dimensions. Every file is drawn at true size with no tolerance added. The holes and pins that meet another part are listed below under Mating features, with the fit each joint needs; open those by your process's clearance before making the part. Mating features
- sizes
- 12 in table
Notes
- Dimensions are exact nominal, true size, no tolerance added. Shaft axis horizontal, base flat on the mounting surface. h = shaft centre height above the base (±0.02 on Wangong's drawing), A = width, B = length along the shaft, C = overall height, E = base thickness, F = width of the upright clamp body, R = bolt spacing, T = bolt hole diameter. A/2 is the datum from the side face to the shaft centre (±0.05).
- SK8 and SK10 share one housing (42 wide, 20 centre height, 32 bolt spacing); so do SK12 and SK13. Only the bore differs.
- The files model the base plate, the upright clamp body, the shaft bore at h and the two vertical bolt holes. Not modelled: the clamp slit and pinch screw (position not tabled) and the rounded top corners (radius not published), so the top is drawn square.
- Wangong's table also prints a column S (5 to 14 mm) that its text does not define; it is listed as printed and not used in the files.
- Files: sk-shaft-supports--sk8, sk-shaft-supports--sk10, sk-shaft-supports--sk12, sk-shaft-supports--sk16, sk-shaft-supports--sk20, sk-shaft-supports--sk25, sk-shaft-supports--sk30.
SK shaft supports SK8–SK60: centre height, base, bolt spacing and… size chart
| size | shaft d | h centre height | A width | B length | C height | E base | F upright | R bolt spacing | T hole | S (undefined) | clamp bolt | mounting bolt | mass g |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SK8 | 8 | 20 | 42 | 14 | 32.8 | 6 | 18 | 32 | 5.5 | 5 | M4 | M5 | 24 |
| SK10 | 10 | 20 | 42 | 14 | 32.8 | 6 | 18 | 32 | 5.5 | 5 | M4 | M5 | 24 |
| SK12 | 12 | 23 | 42 | 14 | 37.5 | 6 | 20 | 32 | 5.5 | 5 | M4 | M5 | 30 |
| SK13 | 13 | 23 | 42 | 14 | 37.5 | 6 | 20 | 32 | 5.5 | 5 | M4 | M5 | 30 |
| SK16 | 16 | 27 | 48 | 16 | 44 | 8 | 25 | 38 | 5.5 | 5 | M4 | M5 | 40 |
| SK20 | 20 | 31 | 60 | 20 | 51 | 10 | 30 | 45 | 6.6 | 7.5 | M5 | M6 | 70 |
| SK25 | 25 | 35 | 70 | 24 | 60 | 12 | 38 | 56 | 6.6 | 7 | M6 | M6 | 130 |
| SK30 | 30 | 42 | 84 | 28 | 70 | 12 | 44 | 64 | 9 | 10 | M6 | M8 | 180 |
| SK35 | 35 | 50 | 98 | 32 | 82 | 15 | 50 | 74 | 11 | 12 | M8 | M10 | 270 |
| SK40 | 40 | 60 | 114 | 36 | 96 | 15 | 60 | 90 | 11 | 12 | M8 | M10 | 420 |
| SK50 | 50 | 70 | 126 | 40 | 120 | 18 | 74 | 100 | 14 | 13 | M12 | M12 | 750 |
| SK60 | 60 | 80 | 148 | 45 | 136 | 18 | 90 | 120 | 14 | 14 | M12 | M12 | 1100 |
Mating features
Drawn at the exact size. Open press, slide, run and socket features by your process's clearance (tolerances by process); leave designed gaps and clamp fits as drawn.
| feature | exact | mates with | fit | files |
|---|---|---|---|---|
| bore | d (SK8 8, SK12 12, SK20 20) | linear shaft of the same nominal diameter | clamp | all |
| bolt holes | T on R (SK8 5.5 on 32, SK20 6.6 on 45) | M5 / M6 / M8 bolts into the frame or extrusion | designed | all |
| centre height | h (SK8 20, SK16 27) | matching bearing block centre height on the carriage | designed | all |
Where the files are
Other publishers' files are linked, not hosted. "verify" = check the license at the link before commercial use.
| Wangong (manufacturer datasheet, hosted by Phidgets) | Linear guide products: SHF and SK series shaft supports (LMN4221_0 datasheet) | web | Publisher's page; dimensions are facts |
| Motion-and-Drives | SK steel shaft supports technical specification | web | Publisher's page; dimensions are facts |
| Handsontec | SK shaft holder data sheet | web | Publisher's page; dimensions are facts |
Free files
★ Free files 7 parts. Generated by Xem Studio from the standard; threads are plain cylinders at major diameter. CC BY 4.0. index.json
| sk-shaft-supports--sk10 | SK10 shaft support for Ø10 mm rod (Wangong SK series, mounting reference) | STEP · STL |
| sk-shaft-supports--sk12 | SK12 shaft support for Ø12 mm rod (Wangong SK series, mounting reference) | STEP · STL |
| sk-shaft-supports--sk16 | SK16 shaft support for Ø16 mm rod (Wangong SK series, mounting reference) | STEP · STL |
| sk-shaft-supports--sk20 | SK20 shaft support for Ø20 mm rod (Wangong SK series, mounting reference) | STEP · STL |
| sk-shaft-supports--sk25 | SK25 shaft support for Ø25 mm rod (Wangong SK series, mounting reference) | STEP · STL |
| sk-shaft-supports--sk30 | SK30 shaft support for Ø30 mm rod (Wangong SK series, mounting reference) | STEP · STL |
| sk-shaft-supports--sk8 | SK8 shaft support for Ø8 mm rod (Wangong SK series, mounting reference) | STEP · STL |
https://xemstudio.com/mcp to Claude, ChatGPT, Cursor or any MCP client (free, no account, one minute) and it can look up exact sizes, mating fits and free STEP/STL from every chat.Plain text: sheet.txt · JSON: /api/geometry?object=sk-shaft-supports
Fits with
Questions
What is the SK8 centre height?
20 mm from the base to the shaft centre; SK8 is 42 wide, 14 long, 32.8 tall, with two 5.5 mm holes 32 mm apart for M5.
Are SK8 and SK10 the same size?
Yes, same 42 × 14 × 32.8 housing, 20 mm centre height and 32 mm bolt spacing; only the bore changes (8 or 10 mm).
What are the SK20 dimensions?
Centre height 31, width 60, length 20, height 51, base 10 thick, two 6.6 mm holes 45 mm apart for M6, M5 clamp screw.