Product Overview
The SC16LUU is a long-type aluminum alloy linear bearing slide unit housing two LM16UU linear bearings in series. Designed for high-precision, continuous-stroke linear motion on 16mm hardened shafts, it delivers superior load capacity and rigidity ideal for demanding B2B automation and machinery applications.
Technical Data
| Unit Designation | Dimensions(mm) | Slide bush | Weight(g) | ||||||||||||||
| T | h | E | W | L | F | G | B | C | K | S₁ | S₂ | L₁ | Designation | Basic load rating dynamic C (N) | Basic load rating static Co (N) | ||
| SCS8LUU | 6 | 11 | 17 | 34 | 58 | 22 | 18 | 24 | 42 | 5 | M4 | 3.4 | 8 | LM8UU×2 | 274 | 392 | 0.1 |
| SCS10LUU | 8 | 13 | 20 | 40 | 68 | 26 | 21 | 28 | 46 | 6 | M5 | 4.3 | 12 | LM10UU×2 | 372 | 549 | 0.18 |
| SCS12LUU | 8 | 15 | 21 | 42 | 70 | 28 | 24 | 30.5 | 50 | 5.75 | M5 | 4.3 | 12 | LM12UU×2 | 510 | 784 | 0.2 |
| SCS13LUU | 8 | 15 | 22 | 44 | 75 | 30 | 24.5 | 33 | 50 | 5.5 | M5 | 4.3 | 12 | LM13UU×2 | 510 | 784 | 0.23 |
| SCS16LUU | 9 | 19 | 25 | 50 | 85 | 38.5 | 32.5 | 36 | 60 | 7 | M5 | 4.3 | 12 | LM16UU×2 | 774 | 1180 | 0.39 |
| SCS20LUU | 11 | 21 | 27 | 54 | 96 | 41 | 35 | 40 | 70 | 7 | M6 | 5.2 | 12 | LM20UU×2 | 882 | 1370 | 0.49 |
| SCS25LUU | 12 | 26 | 38 | 76 | 130 | 51.5 | 42 | 54 | 100 | 11 | M8 | 7 | 18 | LM25UU×2 | 980 | 1570 | 1.165 |
| SCS30LUU | 15 | 30 | 39 | 78 | 140 | 59.5 | 49 | 58 | 110 | 10 | M8 | 7 | 18 | LM30UU×2 | 1570 | 2740 | 1.43 |
| SCS35LUU | 18 | 34 | 45 | 90 | 155 | 68 | 54 | 70 | 120 | 10 | M8 | 7 | 18 | LM35UU×2 | 1670 | 3140 | 2.13 |
| SCS40LUU | 20 | 40 | 51 | 102 | 175 | 78 | 62 | 80 | 140 | 11 | M10 | 8.7 | 25 | LM40UU×2 | 2160 | 4020 | 3.09 |
| SCS50LUU | 25 | 52 | 61 | 122 | 215 | 102 | 80 | 100 | 160 | 11 | M10 | 8.7 | 25 | LM50UU×2 | 3820 | 7940 | 6.53 |
| SCS60LUU | 30 | 58 | 66 | 132 | 240 | 114 | 94 | 108 | 180 | 12 | M12 | 10.7 | 25 | LM60UU×2 | 4700 | 10000 | 9.29 |
Engineering Advantages
Dual-Bearing Long Housing
The "LUU" long-type design houses two LM16UU bearings in a single rigid aluminum block, significantly increasing the effective contact length and anti-tilting moment capacity versus the standard single-bearing SC16UU.
High-Precision Linear Motion
Recirculating steel balls and precisely ground raceways deliver smooth, low-friction linear movement on hardened Ø16mm shafts. Enables repeatability essential in CNC, robotics, and medical automation.
Double-Lip Sealed (UU)
Standard dual rubber seals on both ends of each bearing insert retain grease and block contamination from metal chips, coolant mist, and industrial dust-extending service life in harsh factory environments.
Rigid Aluminium Alloy Block
Die-cast aluminium housing delivers excellent rigidity-to-weight ratio. Four M5 mounting bolts per face provide stable, vibration-resistant installation with ±0.02mm positioning accuracy.
Interchangeable Standard
SC16LUU dimensions conform to industry-standard specifications, ensuring direct drop-in compatibility with third-party linear shafts, support rails, and existing machine designs-no re-engineering required.
OEM Customization Ready
Factory-direct supply with full OEM/ODM support: custom branding, special seals, chrome or nickel plating, and bulk packaging with your brand labels or neutral white-box options.
Ordering & Support
Custom Packaging
OEM branded boxes, neutral white boxes, bulk bags, or custom inner cartons per your spec.
Assembly Support
Installation videos and assembly guides provided. Telephone and email technical support available.
Pre-shipment Samples
Physical samples with actual product photography available before bulk order commitment.
12-Month Warranty
One-year quality guarantee. Defective components replaced free of charge. Regular rust-prevention oil application recommended.
Industry Applications
CNC Machine Tools & Machining Centers
Used in tool-changer carriages, Z-axis quills, and auxiliary linear slides where precision repetitive motion and rigidity under cutting loads are essential.
Industrial Automation & Robotics
X/Y/Z gantry stages, pick-and-place arms, collaborative robot linear joints, and conveyor indexing units requiring low-maintenance, high-cycle linear guidance.
Packaging & Labeling Machinery
Vertical form-fill-seal machines, labeling carriage systems, and filling nozzle guides where smooth reciprocating motion at high cycle rates is critical.
Printing & Textile Equipment
Printhead linear stages, fabric feed guides, and winding carriage systems in industrial printing and textile manufacturing lines.
Medical & Laboratory Equipment
Sample-handling stages, imaging system linear drives, and diagnostic instrument carriages where smooth motion and contamination resistance are paramount.
3D Printing & Laser Cutting
High-speed motion axes in FDM and SLA printers, laser engravers, and plasma cutters. The long-type housing reduces rocking, improving surface quality and cut precision.
FAQ
What are the lead time and shipping options?
Standard items ship within 3–5 business days. Custom/OEM orders take 7–15 business days. We ship worldwide via DHL, FedEx, UPS, and sea freight. Export documents (invoice, packing list, CO) included as standard.
When should I choose SC16LUU over a linear guide rail?
SC16LUU on a round shaft offers lower cost, easier installation, and self-alignment tolerance - ideal for automation, packaging, and 3D printing. Choose a profile rail (HG/EG series) only when you need extreme rigidity or multi-directional moment loads beyond what a round shaft system can handle.
How is quality controlled before shipment?
Under our ISO9001:2015 system, every batch is checked for bore/housing dimensions, running smoothness on a calibrated 16mm shaft, and seal integrity. Batch records are fully traceable. Third-party inspection (SGS, BV) available on request for large orders.
What are the storage and installation recommendations?
Store in dry conditions; apply light anti-rust oil if storing over 3 months. During installation, ensure the mounting surface flatness is within 0.05mm and align the shaft axis parallel to travel direction before final tightening. When using two units on one shaft, maximize the spacing between them for best anti-tilt rigidity.
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