Hints for Correctly Using NBK Products
Dimension Drawing
Specs/CAD
Unit : mm
| Part Number | M (Coarse) Nominal of Thread |
Pitch | L | D1 | L1 | e | Key Part No. | Hexalobular Socket No. | t | Mass (g) |
Price (USD) |
CAD Download |
QTY (Piece) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SLEC-M3-A-EL | M3 | 0.5 | 6 | 6.8 | 2.5 | 0.4 | SKX-10 | 10 | 1 | 0.7 | 4.75 | CAD | Cart |
| SLEC-M4-A-EL | M4 | 0.7 | 8 | 7 | 3 | 0.4 | SKX-15 | 15 | 1.2 | 1.6 | 5.06 | CAD | Cart |
| SLEC-M5-A-EL | M5 | 0.8 | 10 | 8.5 | 4 | 0.4 | SKX-20 | 20 | 1.5 | 2.6 | 4.75 | CAD | Cart |
| SLEC-M6-A-EL | M6 | 1 | 12 | 10 | 4 | 0.5 | SKX-25 | 25 | 2 | 5.1 | 4.93 | CAD | Cart |
| SLEC-M8-A-EL | M8 | 1.25 | 16 | 13 | 5 | 0.8 | SKX-30 | 30 | 2.5 | 11 | 5.83 | CAD | Cart |
| SLEC-M10-A-EL | M10 | 1.5 | 20 | 16 | 7 | 1 | SKX-40 | 40 | 3 | 22 | 6.84 | CAD | Cart |
| SLEC-M12-A-EL | M12 | 1.75 | 24 | 18 | 8 | 1 | SKX-45 | 45 | 3.5 | 32 | 9.23 | CAD | Cart |
Related Services
Material/Finish
| SLEC-A-EL | |
|---|---|
| Main Body | SCM435 Electroless Nickel Plating |
| Strength Class | 10.9 |
＊1： The hexalobular shape is prescribed by JIS B 1015：2008（ISO 10664：2005）“Hexalobular internal driving feature for bolts and screws”.
Application
Fixing linear guideway rails / Workpieces / JigsCharacteristics
- When the screw is tightened, the workpiece is strongly clamped by the head, which is decentered from the shaft center of the screw. The wedge effect creates a large clamping force with low tightening torque.
-
The hexalobular＊1 shape can withstand high tightening torque.
⇒Features of the Hexalobular Socket - Use a dedicated wrench SKX for mounting and removing.
- Use the SKX-N hexalobular wrench for extremely limited access spaces for mounting and removing in tight spaces.
- Suitable for fixing linear guideway rails. As the decentered head presses the linear guideway rail against the installation reference surface, precision can be easily achieved when mounting. Also, mounting accuracy is maintained by suppressing warping and misalignment caused by long-term use.
- SLEC-A-EL is an electroless nickel plating type. For applications that require corrosion resistance.
＊1： The hexalobular shape is prescribed by JIS B 1015: 2008(ISO 10664: 2005)"Hexalobular internal driving feature for bolts and screws".
Usage Example
Fixing linear guideway rails.
Refer to the s max. dimension in the mounting dimensions; if the clamping screw with eccentric head may interfere with the carriage, etc., avoid interference by lowering its mounting surface.
When using in a rail, press at the position of the rail body's mounting screws.
Mounting Method
Mounting Dimensions
Unit : mm
| Part Number | Part Number | E | M | Adjustment Range min./max. |
s max. |
|---|---|---|---|---|---|
| SLEC-M3-A | SLEC-M3-A-EL | 3.10～+0.3 | M3 | -0.1/0.7 | 3.3 |
| SLEC-M4-A | SLEC-M4-A-EL | 3.150～+0.3 | M4 | -0.05/0.75 | 4.1 |
| SLEC-M5-A | SLEC-M5-A-EL | 3.90～+0.3 | M5 | -0.05/0.75 | 5.3 |
| SLEC-M6-A | SLEC-M6-A-EL | 4.650～+0.3 | M6 | -0.15/0.85 | 5.5 |
| SLEC-M8-A | SLEC-M8-A-EL | 6.050～+0.5 | M8 | -0.35/1.25 | 7 |
| SLEC-M10-A | SLEC-M10-A-EL | 7.50～+0.5 | M10 | -0.5/1.5 | 9.5 |
| SLEC-M12-A | SLEC-M12-A-EL | 8.50～+0.5 | M12 | -0.5/1.5 | 10.9 |
Recommended size of linear guideway rail
Unit : mm
| Nominal of Rail | Rail Width W |
Applicable Clamping Screws with Eccentric Head | |
|---|---|---|---|
| #9 | 9 | SLEC-M3-A | SLEC-M4-A |
| #12 | 12 | SLEC-M3-A | SLEC-M4-A |
| #15 | 15 | SLEC-M3-A | SLEC-M4-A |
| #20 | 20 | SLEC-M4-A | SLEC-M5-A |
| #25 | 23 | SLEC-M5-A | SLEC-M6-A |
| #30 | 28 | SLEC-M6-A | SLEC-M8-A |
| #35 | 34 | SLEC-M8-A | SLEC-M10-A |
| #45 | 45 | SLEC-M10-A | SLEC-M12-A |
| #55 | 53 | SLEC-M12-A | |
