DLY SBR-UU Linear Bearing Block is an open-type aluminum linear bearing block designed for SBR supported round rail systems. It runs together with SBR supported linear rails and is commonly used for CNC routers, woodworking machines, automation slides, 3D printers, light-duty motion platforms and replacement rail systems.
The SBR-UU block uses an aluminum housing with an open-type LM linear bearing inside. The UU double-sealed design helps reduce dust entry during operation, while the open bottom structure allows the block to slide along supported round rails. DLY can supply SBR-UU blocks separately or provide matched SBR rail-and-block sets to reduce model mismatch during installation.
Main supply scope:
SBR10UU, SBR12UU, SBR13UU, SBR16UU, SBR20UU, SBR25UU, SBR30UU, SBR35UU, SBR40UU, SBR50UU standard blocks, SBR-LUU extended blocks, replacement SBR-UU blocks, matched SBR supported rails, customized rail length and export packaging.
SBR-UU and SBR-LUU aluminum linear bearing blocks for supported round rail systems.
Standard SBR-UU bearing block with aluminum housing, open bottom and double-sealed linear bearing.
SBR-UU slider block for SBR supported linear rail replacement and new machine assembly.
SBR-UU Linear Bearing Block Specifications
| Product Name | SBR-UU Linear Bearing Block / SBR UU Bearing Block / SBR Linear Bearing Block |
| Matched Rail | SBR supported round linear rail |
| Structure Type | Open-type linear bearing block |
| Bearing Type | LM open-type linear bearing inside aluminum housing |
| Seal Type | UU double seal |
| Housing Material | Aluminum alloy housing |
| Standard Models | SBR10UU, SBR12UU, SBR13UU, SBR16UU, SBR20UU, SBR25UU, SBR30UU, SBR35UU, SBR40UU, SBR50UU |
| Extended Models | SBR16LUU, SBR20LUU, SBR25LUU, SBR30LUU, SBR40LUU |
| Supply Method | Block only, matched SBR rail-and-block set, custom rail length assembly |
| Typical Applications | CNC routers, woodworking machines, 3D printers, automation slides, packaging machines, maintenance replacement, linear motion platforms |
SBR-UU vs SBR-LUU Bearing Blocks
SBR-UU is the standard-length bearing block for general supported rail systems. SBR-LUU is the extended-length version, selected when the moving platform needs longer block support, improved stability or better load distribution.
| Type | Structure | Best For |
|---|---|---|
| SBR-UU | Standard-length aluminum bearing block with UU double seal | General SBR rail systems, replacement blocks, compact installation, light-to-medium automation |
| SBR-LUU | Extended-length aluminum bearing block with longer housing body | Longer stroke, larger moving plate, higher stability and better load support |
SBR-UU and SBR-LUU Dimension Table
It shows SBR-UU and SBR-LUU block structure, mounting hole layout, slide bush designation, load rating and weight reference.
SBR-UU and SBR-LUU linear motion ball slide unit dimension table for supported round rail systems.
| Unit Type | h | E | W | L | F | h1 | θ | B | C | S | L1 | T | Designation | Dynamic C(N) | Static Co(N) | Weight(g) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SBR10UU | 15 | 18 | 36 | 32 | 24 | 6 | 80° | 25 | 20 | M5 | 10 | 7 | LM10UU-OP | 372 | 549 | 65 |
| SBR12UU | 17 | 20 | 40 | 39 | 27.6 | 8.5 | 80° | 28 | 26 | M5 | 10 | 8 | LM12UU-OP | 510 | 784 | 100 |
| SBR13UU | 17 | 20 | 40 | 39 | 27.6 | 8.5 | 80° | 28 | 26 | M5 | 10 | 8 | LM13UU-OP | 510 | 784 | 100 |
| SBR16UU | 20 | 22.5 | 45 | 45 | 33 | 10 | 80° | 32 | 30 | M5 | 12 | 9 | LM16UU-OP | 774 | 1180 | 150 |
| SBR20UU | 23 | 24 | 48 | 50 | 39 | 10 | 60° | 35 | 35 | M6 | 12 | 11 | LM20UU-OP | 882 | 1370 | 200 |
| SBR25UU | 27 | 30 | 60 | 65 | 47 | 11.5 | 50° | 40 | 40 | M6 | 12 | 14 | LM25UU-OP | 980 | 1570 | 450 |
| SBR30UU | 33 | 35 | 70 | 70 | 56 | 14 | 50° | 50 | 50 | M8 | 18 | 15 | LM30UU-OP | 1570 | 2740 | 630 |
| SBR35UU | 37 | 40 | 80 | 80 | 63 | 16 | 50° | 55 | 55 | M8 | 18 | 18 | LM35UU-OP | 1670 | 3140 | 925 |
| SBR40UU | 42 | 45 | 90 | 90 | 72 | 19 | 50° | 65 | 65 | M10 | 20 | 20 | LM40UU-OP | 2160 | 4020 | 1330 |
| SBR50UU | 53 | 60 | 120 | 110 | 92 | 23 | 50° | 94 | 80 | M10 | 20 | 25 | LM50UU-OP | 3820 | 7940 | 3000 |
| SBR16LUU | 20 | 22.5 | 45 | 85 | 33 | 10 | 80° | 32 | 60 | M5 | 12 | 9 | LM16LUU-OP | 1548 | 2360 | 300 |
| SBR20LUU | 23 | 24 | 48 | 96 | 39 | 10 | 60° | 35 | 70 | M6 | 12 | 11 | LM20LUU-OP | 1764 | 2740 | 400 |
| SBR25LUU | 27 | 30 | 60 | 130 | 47 | 11.5 | 50° | 40 | 100 | M6 | 12 | 14 | LM25LUU-OP | 1960 | 3140 | 900 |
| SBR30LUU | 33 | 35 | 70 | 140 | 56 | 14 | 50° | 50 | 110 | M8 | 18 | 15 | LM30LUU-OP | 3140 | 5480 | 1260 |
| SBR40LUU | 42 | 45 | 90 | 175 | 72 | 19 | 50° | 65 | 140 | M10 | 20 | 20 | LM40LUU-OP | 4320 | 8040 | 2660 |
Available SBR-UU Models and Rail Matching
The first selection step is confirming the supported rail shaft diameter. For example, SBR16UU is matched with SBR16 supported rail, and SBR20UU is matched with SBR20 supported rail.
| Model | Matching Rail Shaft Diameter | Common Use |
|---|---|---|
| SBR12UU | 12mm | Small automation, compact equipment |
| SBR16UU | 16mm | CNC routers, 3D machines, light-duty motion |
| SBR20UU | 20mm | General automation, woodworking machines |
| SBR25UU | 25mm | Medium-load machine platforms |
| SBR30UU | 30mm | Heavier linear motion systems |
| SBR35UU | 35mm | Industrial equipment |
| SBR40UU | 40mm | Large machinery and long-travel systems |
Key Product Features
Open-Type Structure
Designed to run on SBR supported round rails, where the supported shaft requires an open bearing block structure.
UU Double-Sealed Design
The double-sealed bearing structure helps reduce dust and debris entry during normal operation.
Easy Mounting
The aluminum housing comes with mounting holes for connection with machine plates, brackets or moving platforms.
Block Only or Rail Set
Buyers can order SBR-UU blocks separately or together with matched SBR supported linear rails.
How to Choose the Right SBR-UU Block
When selecting an SBR-UU linear bearing block, do not only check the appearance. The block must match the rail shaft diameter, block height, mounting hole spacing and machine installation space.
| Selection Item | What to Confirm |
|---|---|
| Rail Shaft Diameter | Confirm 10mm, 12mm, 16mm, 20mm, 25mm, 30mm, 35mm, 40mm or 50mm rail size. |
| Standard or Extended Type | Choose SBR-UU for standard use or SBR-LUU for longer housing and better support. |
| Mounting Hole Distance | Check mounting hole spacing before replacing an old block or designing a new platform. |
| Number of Blocks | Confirm whether each rail uses one block, two blocks or multiple blocks. |
| Rail Condition | If replacing old blocks, check whether the supported shaft surface is worn, rusted or scratched. |
Typical Applications
SBR-UU bearing blocks are suitable for supported round rail systems where users need a practical balance between installation convenience, smooth movement and cost-effective linear motion.
CNC Router and Engraving Machine
Used for table movement, gantry movement and light-to-medium linear guide structures.
Woodworking Machine
Commonly used in woodworking equipment that needs supported rail guidance over longer spans.
3D Printer and DIY Platform
Suitable for DIY linear motion structures, small platforms and light automation projects.
Automation Slide
Used in light-duty feeding, pushing, guiding and positioning systems.
Packaging Machine
Applied in repeated movement mechanisms where simple and stable rail guidance is required.
Maintenance Replacement
Used to replace worn SBR-UU blocks in existing SBR supported rail systems.
Need help selecting SBR-UU blocks?
Send us your model number, rail size, quantity, rail length or old block photo. DLY can help confirm the suitable SBR-UU block or matched SBR rail-and-block set.
WhatsApp: +86 166 0578 8856 | Email: dlyexport2@dlybearing.com
FAQ
Q1: What is SBR-UU used for?
SBR-UU is used as the sliding bearing block on SBR supported linear rails. It helps machine tables, carriages and moving plates slide smoothly along supported round shafts.
Q2: Can I buy only the SBR-UU block without the rail?
Yes. DLY can supply SBR-UU blocks separately for replacement, maintenance or stock orders. Please confirm the matching rail shaft diameter before ordering.
Q3: What is the difference between SBR-UU and SBR-LUU?
SBR-UU is the standard-length block. SBR-LUU is the extended-length block, selected when the application needs longer support, better stability or higher load distribution.
Q4: How do I choose the correct SBR-UU model?
Choose the model according to the supported rail shaft diameter. For example, SBR16UU is used with SBR16 rail, and SBR20UU is used with SBR20 rail.
Q5: Can DLY supply SBR rails and SBR-UU blocks together?
Yes. DLY can provide matched SBR supported linear rails and SBR-UU bearing blocks as complete linear motion sets with custom rail length.
Q6: Can I send a drawing or photo to confirm the replacement model?
Yes. You can send the old block photo, model number, rail diameter or drawing, and DLY can help confirm the suitable replacement model.
Hot Tags: SBR-UU Linear Bearing Block, China SBR-UU Linear Bearing Block manufacturers, suppliers, factory, linear actuator shaft, 16mm Linear Shaft, 10mm Linear Rod, Sbr Linear Guide Rail, linear motion rail guide, cam roller linear guide rails
