Product Overview
The SK16 shaft support is a vertical aluminum clamp block designed to support and fix 16mm linear shafts in CNC routers, 3D printers, printing equipment, and automated linear motion systems. Interchangeable with SH16, SK16A and SH16A - see compatible models below.
The SK16 linear shaft support features a split-clamp open structure: the inner bore is machined to H7 tolerance before slotting, relaxing to H8 after the slot is cut.
Manufactured from 6063 aluminum alloy with standard hard anodized finish (matte silver-grey), the SK16 shaft clamp block offers corrosion resistance, dimensional stability, and a net weight of 40g per unit - suited for light-to-medium duty linear equipment frames.
Key Specifications
Product drawing
| Parameter | SK16 Value | Tolerance |
|---|---|---|
| Bore Diameter (d) | 16mm | H7 / H8 after slotting |
| Center Height (h) | 27mm | ±0.02mm |
| Base Length (W) | 48mm | ±0.05mm |
| Body Thickness (L) |
16mm |
±0.1mm |
| Total Height (F) | 44mm | ±0.02mm |
| Bolt Hole Spacing (B) | 38mm | ±0.1mm |
| Mounting Hole Dia. (S) | 5.5mm | Fits M5 bolt |
| Base Edge Width (G) | 8mm | - |
| Slot Width (P) | 25mm | - |
| Material | 6063 Aluminum Alloy | - |
| Surface Finish | Hard Anodized (matte silver) | - |
| Weight | 40g / 0.04kg | - |
| Working Temp. | -20°C to +80°C | - |
|
Weight |
0.39 kg | - |
Compatible Model References
This unit is sold and stocked under the following equivalent model numbers across global suppliers and marketplaces:
SK16 / SK-16 / SH16 / SH-16 / SK16A / SH16A
All designations share identical dimensions and are fully interchangeable.
Shaft Fit & Installation Notes
Designed for φ16mm precision linear shafts (LM shaft); recommended shaft tolerance: g5, h5, or f8
Clamping bolt: M4 socket head cap screw (side-mounted, tightens onto shaft OD)
Mounting bolts: M5 screws via 5.5mm through-holes on base (2-hole pattern, 38mm center spacing)
Center height precision: 27mm ±0.02mm - critical for multi-support shaft alignment on precision frames
Open clamp design - shaft insert from above only, not compatible with linear bearing pass-through.
For long shaft spans, increase support point quantity to reduce deflection
Application Fit
The SK16 linear shaft support is used as end support and mid-span support in:
Suitable for light-to-medium radial load support only. Not rated for heavy impact or axial loading.
Why Source SK16 Shaft Clamp Blocks from SIQIANG
SIQIANG (Zhejiang Siqiang Bearing Manufacturing Co., Ltd.) manufactures the SK16 shaft support and full SK series linear shaft clamp blocks under ISO-compliant processes. Full SK/SH series in stock. Custom surface finish and bulk packaging available for B2B orders. Available in standard matte silver anodized finish; black anodized and polished variants available on request.
- MOQ flexible for B2B procurement
- Compatible with SAMICK, SHAC, THK-equivalent dimensional standards
- Custom surface finish and bulk packaging available
FAQ
Q: What is the difference between SCS16UU and SCS16LUU?
A: The SCS16LUU is the extended-body version of the SCS16UU. It has a longer housing (L=85mm vs L=58mm) and houses two LM16UU bearings instead of one, giving greater load capacity and more stable linear motion along 16mm shafts.
Q: Does the SCS16LUU have a shaft clamping function?
A: No. The SCS16LUU housing has no clamping or locking mechanism. The block slides freely along the 16mm shaft and cannot be locked at a fixed position.
Q: What shaft diameter is compatible with SCS16LUU?
A: The SCS16LUU is designed for 16mm precision linear shafts (Ø16mm), and is compatible with standard SBR16 rail systems and open linear shaft configurations.
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