SCV...UU Short Type Linear Motion Ball Slide Unit is a compact linear bearing slide unit designed for smooth movement on round shafts. It integrates an LME...UU linear bearing inside a block-style housing, making installation easier and helping the moving part travel with lower friction and stable guidance.
This series is suitable for automation equipment, small machines, measuring devices, packaging machinery and light-duty linear motion systems where compact structure, simple mounting and reliable sliding performance are required.
Available shaft diameters include 8 mm, 12 mm, 16 mm, 20 mm, 25 mm, 30 mm, 40 mm and 50 mm.
Contact DLY for Model SelectionProduct Type
Short type linear bearing slide unit
Matched Bearing
LME...UU linear bearing
Shaft Diameter
8 mm to 50 mm
Main Use
Round shaft linear motion systems
SCV...UU slide units are used together with round linear shafts. Compared with using a loose linear bearing alone, the block-style unit provides a more convenient mounting structure and is easier to install on machine plates, brackets or moving mechanisms.
Product Features
- Short type structure for compact linear motion designs.
- Built-in LME...UU linear bearing for smooth movement on round shafts.
- Block-style housing allows convenient top mounting.
- Suitable for shaft diameters from 8 mm to 50 mm.
- Useful for automation equipment, transfer mechanisms, measuring devices and small machinery.
- Matched with KBA...UU type for related installation requirements.
Structure and Dimensions
The drawing below shows the main structure and dimension symbols of SCV...UU short type linear motion ball slide units, including shaft diameter, block width, height, mounting hole size and matched linear bearing type.
Dimension drawing and model table for SCV...UU short type linear motion ball slide units.
Model Table
The following table lists common SCV...UU models, installed linear bearing type, shaft diameter, load rating, weight and main installation dimensions.
| Model | Installed Linear Bearing | Dynamic Load C(N) | Static Load C0(N) | Weight(g) | Shaft Dia | h | D | W | H | G | A | J | E | S1×L | S2 | Lv | Matched Type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SCV8UU | LME8UU | 260 | 400 | 40 | φ8 | 11 | 17 | 34 | 22 | 18 | 6 | 24 | 5 | M4×8 | φ3.4 | 14.4 | KBA8UU |
| SCV12UU | LME12UU | 410 | 590 | 82 | φ12 | 15 | 22 | 44 | 30 | 24.5 | 8 | 33 | 5.5 | M5×10 | φ4.3 | 20.3 | KBA12UU |
| SCV16UU | LME16UU | 770 | 1170 | 122 | φ16 | 19 | 25 | 50 | 38.5 | 32.5 | 9 | 36 | 7 | M5×12 | φ4.3 | 22.3 | KBA16UU |
| SCV20UU | LME20UU | 860 | 1370 | 176 | φ20 | 21 | 27 | 54 | 41 | 35 | 11 | 40 | 7 | M6×12 | φ5.2 | 28.3 | KBA20UU |
| SCV25UU | LME25UU | 980 | 1560 | 400 | φ25 | 26 | 38 | 76 | 51.5 | 41 | 12 | 54 | 11 | M8×18 | φ6.8 | 40.4 | KBA25UU |
| SCV30UU | LME30UU | 1560 | 2740 | 570 | φ30 | 30 | 39 | 78 | 59.5 | 49 | 15 | 58 | 10 | M8×18 | φ6.8 | 48.4 | KBA30UU |
| SCV40UU | LME40UU | 2150 | 4010 | 1320 | φ40 | 40 | 51 | 102 | 78 | 62 | 20 | 80 | 11 | M10×25 | φ8.6 | 56.4 | KBA40UU |
| SCV50UU | LME50UU | 3820 | 7930 | 1900 | φ50 | 52 | 61 | 122 | 102 | 80 | 24 | 100 | 11 | M10×25 | φ8.6 | 72.3 | KBA50UU |
How to Select SCV...UU Linear Slide Units
When selecting an SCV...UU linear bearing slide unit, the first step is to confirm the shaft diameter. For example, SCV20UU is used with a 20 mm round shaft, while SCV30UU is used with a 30 mm round shaft.
After confirming the shaft size, check the available installation space, load requirement and mounting hole dimensions. For compact structures, smaller shaft diameters can save space. For applications requiring higher load capacity and better rigidity, larger shaft diameters are usually more suitable.
If the slide unit is used in a complete linear motion system, it is also recommended to check the matching round shaft, shaft support, mounting plate and lubrication condition together.
Typical Applications
- Automation equipment
- Packaging machinery
- Measuring instruments
- Light-duty transfer devices
- Small CNC auxiliary mechanisms
- Linear positioning structures using round shafts
Related Linear Motion Products
SCV...UU linear slide units are often used together with round shafts, linear bearings and shaft supports. For a complete linear motion structure, you can also check the following related products:
FAQ
Q: What is SCV...UU used for?
A: SCV...UU is used to build a compact linear sliding structure on round shafts. It allows a machine part or moving plate to travel smoothly along the shaft.
Q: What linear bearing is installed inside SCV...UU?
A: The SCV...UU series uses LME...UU linear bearings. For example, SCV20UU is matched with LME20UU.
Q: How do I choose the correct model?
A: Choose the model according to the shaft diameter first. Then check load rating, block dimensions and mounting hole size according to the machine structure.
Q: Can SCV...UU be used with supported shafts?
A: SCV...UU is mainly designed for round shaft sliding structures. Whether it can be used with a supported shaft depends on the shaft support design and available clearance. Please confirm the installation structure before selection.
Contact DLY for SCV...UU Linear Slide Units
If you need to confirm shaft diameter, load capacity, mounting dimensions or matching linear motion components, DLY can help check the model according to your drawing or application requirements.
WhatsApp: +86 166 0578 8856
Email: dlyexport2@dlybearing.com
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