PRODUCT
Linear Motion Bearings & Shafts
Bearing Overview
Our linear motion products — including linear motion bearings and precision linear shafts (linear rods) — are designed to provide smooth, accurate, and low-friction linear movement in industrial automation systems. These components work together to ensure stable guidance performance, high repeatability, and long service life under continuous operating conditions.
Linear bearings achieve precise linear motion by recirculating or sliding rolling elements along a hardened shaft or rail, offering excellent load capacity and minimal resistance. When paired with precision-ground linear shafts made from hardened carbon steel or stainless steel, the system delivers reliable motion performance even under high-speed or high-cycle conditions.
These components are widely used in CNC machines, automation equipment, 3D printers, packaging machinery, and robotic systems. Our linear motion products are available in multiple series, sizes, and configurations to meet diverse industrial requirements.
Key Features
- Smooth and low-friction linear motion
- High precision and repeatable positioning
- Compatible with hardened steel and stainless steel shafts
- High load capacity and stable performance
- Multiple sealed and open-type bearing options
- Corrosion-resistant shaft options available
- Easy installation and maintenance
- Suitable for high-speed automation systems
Bearing Types
Linear Bearings Series
| Series | Type | Structure Features | Typical Applications |
| LM / LME UU | Standard linear bearing | Sealed type, compact design | CNC, automation systems |
| LM / LME LUU | Extended type | Longer housing, better stability | Heavy-duty linear motion |
| LM AJ / OP / GA | Adjustable / open type | Adjustable clearance design | Precision machinery |
| LB UU Series | Compact linear bearing | Small size, lightweight | Small automation equipment |
| Flange LMF / LMK / LMH | Flanged type | Easy mounting, stable fixing | Industrial automation |
| KH Series | Miniature linear bearing | Ultra-compact structure | Precision instruments |
| SCS / SCS LUU Series | Shaft support type bearing | Integrated shaft support design | Linear modules |
| SBR / SBR LUU Series | Slide bearing system | Aluminum support rail system | CNC routers |
| SK / SHF Series | Shaft holder support | Fixed shaft support structure | Linear motion systems |
| SDM Series | Standard linear motion unit | General-purpose design | Automation equipment |
Precision Linear Shafts (Linear Rods)
| Item | Specification |
| Shaft Diameter | 5 mm – 120 mm |
| Material | Hardened Carbon Steel / Stainless Steel |
| Surface Treatment | Hard chrome plated / polished / corrosion-resistant |
| Precision | High precision ground finish |
| Straightness | High straightness tolerance for smooth motion |
| Hardness | High surface hardness for wear resistance |
Applications
Linear motion systems are widely used in precision automation and industrial equipment requiring controlled linear movement.
- CNC machines
- 3D printers
- Industrial robots
- Packaging machinery
- Semiconductor equipment
- Measuring instruments
- Automation production lines
- Laser cutting machines
- Textile machinery
- Medical equipment
Technical Specifications
| Item | Available Options |
| Structure | Linear Bearing + Linear Shaft System |
| Bearing Types | LM / LME / LUU / Flange / Miniature Series |
| Shaft Diameter | 5 mm – 120 mm |
| Shaft Material | Bearing Steel / Carbon Steel / Stainless Steel |
| Surface Finish | Hard chrome / Polished / Anti-corrosion |
| Sealing Type | Open / Sealed (UU type) |
| Precision Grade | Standard / High precision |
| Lubrication | Grease or Oil |
| Operating Type | Reciprocating linear motion |
Dimensions Table
Please refer to the table below for detailed dimensions and specifications of each series and model.
Many additional bearing models and customized solutions are available. If you have specific requirements, please feel free to contact us for technical support and selection guidance.
| DESCRIPTION | Model NO. |
| LM UU Series | LM3UU LM4UU LM5UU LM6UU LM8UU LM10UU LM12UU LM13UU LM16UU LM20UU LM25UU LM30UU LM35UU LM40UU LM50UU LM60UU LM80UU LM100UU |
| LME UU Series | LME5UU, LME8UU, LME12UU, LME16UU, LME20UU, LME25UU, LME30UU, LME40UU, LME50UU, LME60UU, LME80UU |
| LM LUU Series | LM6LUU LM8LUU LM10LUU LM12LUU LM13LUU LM16LUU LM20LUU LM25LUU LM30LUU LM35LUU LM40LUU LM50LUU LM60LUU |
| LME LUU Series | LME8LUU LME12LUU LME16LUU LME20LUU LME25LUU LME30LUU LME40LUU LME50LUU LME60LUU |
| LM AJ Series | LM6AJ LM8AJ LM10AJ LM12AJ LM13AJ LM16AJ LM20AJ LM25AJ LM30AJ LM35AJ LM40AJ LM50AJ LM60AJ LM80AJ |
| LM OP Series | LM6OP LM8OP LM10OP LM12OP LM13OP LM16OP LM20OP LM25OP LM30OP LM35OP LM40OP LM50OP LM60OP LM80OP |
| LM GA Series | LM12GA LM16GA LM20GA LM25GA LM30GA LM12M LM16M LM20M LM25M LM30M |
| LB UU Series | LB6UU LB8UU LB10UU LB12UU LB13UU LB16UU LB20UU LB25UU LB30UU LB35UU LB40UU LB50UU LB60UU LB80UU LB100UU LB120UU LB150UU |
| Flange LMF UU | LMF6UU LMF8SUU LMF8UU LMF10UU LMF12UU LMF13UU LMF16UU LMF20UU LMF25UU LMF30UU LMF35UU LMF40UU LMF50UU LMF60UU LMF80UU LMF100UU |
| Flange LMK UU | LMK6UU LMK8SUU LMK8UU LMK10UU LMFK12UU LMK13UU LMK16UU LMK20UU LMK25UU LMK30UU LMK35UU LMK40UU LMK50UU LMK60UU LMK80UU LMK100UU |
| Flange LMH UU | LMH6UU LMH8UU LMH10UU LMFH12UU LMH13UU LMH16UU LMH20UU LMH25UU LMH30UU |
| KH Series | KH0622PP KH0824PP KH1026PP KH1228PP KH1630PP KH2030PP KH2540PP KH3050PP KH4060PP KH5070PP |
| SDM Series | SDM 16 SDM 20 SDM 25 SDM 30 SDM 35 SDM 40 SDM 50 SDM 60 SDM 80 SDM 100 SDM120 SDM150 |
| SCS Serie | SCS6UU SCS8UU SCS10UU SCS12UU SCS13UU SCS16UU SCS20UU SCS25UU SCS30UU SCS35UU SCS40UU SCS50UU SCS60UU |
| SCS LUU Series | SCS8LUU SCS10LUU SCS12LUU SCS13LUU SCS16LUU SCS20LUU SCS25LUU SCS30LUU SCS35LUU SCS40LUU SCS50LUU SCS60LUU |
| SBR UU Series | SBR10UU SBR12UU SBR13UU SBR16UU SBR20UU SBR25UU SBR30UU SBR35UU SBR40UU SBR50UU |
| SBR LUU Series | SBR10LUU SBR12LUU SBR13LUU SBR16LUU SBR20LUU SBR25LUU SBR30LUU SBR35LUU SBR40LUU SBR50LUU |
| TBR UU Series | TBR16UU TBR20UU TBR25UU TBR30UU TBR35UU TBR40UU |
| SK Series | SK8 ,SK10 ,SK12 ,SK13 ,SK16 ,SK20 ,SK25 ,SK30 ,SK35 ,SK40, SK50, SK60 |
| SHF Series | SHF8, SHF10, SHF12, SHF13, SHF16, SHF20, SHF25, SHF30, SHF35, SHF40 , SHF50 |
| Diameter (mm) | Diameter (mm) |
| 5 | 32 |
| 6 | 35 |
| 7 | 36 |
| 8 | 38 |
| 9 | 40 |
| 10 | 45 |
| 12 | 50 |
| 13 | 55 |
| 14 | 56 |
| 15 | 60 |
| 16 | 63 |
| 17 | 65 |
| 18 | 70 |
| 19 | 75 |
| 20 | 80 |
| 22 | 85 |
| 24 | 90 |
| 25 | 100 |
| 28 | 110 |
| 30 | 120 |
Q & A
What are linear bearings used for?
Linear bearings are used to provide smooth and precise linear motion in CNC machines, automation systems, and robotic equipment.
What is the difference between linear bearings and linear shafts?
Linear bearings provide motion guidance, while linear shafts act as the precision running surface for the bearings.
What is the difference between open and sealed linear bearings?
Sealed bearings (UU type) provide better protection against dust and contamination, while open types are suitable for controlled environments.
Can linear motion systems be used in high-speed applications?
Yes, linear bearings and shafts are suitable for high-speed applications when properly lubricated and correctly selected.
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