Product Overview
DLY High Temperature Linear Bearings ST...UU and ST...UUB are round linear motion bearings designed for linear shaft systems used in higher-temperature or heat-affected working conditions.
ST...UU is the standard type, while ST...UUB provides higher basic load rating for applications requiring stronger load support within a limited travel route. The series covers shaft diameters from 8 mm to 100 mm.
These bearings can be used in industrial automation, packaging machinery, handling equipment, heating-related machinery and customized linear motion assemblies.
| Product Name | High Temperature Linear Bearing |
| Series | ST...UU / ST...UUB |
| Structure | Round linear bearing for linear shaft motion |
| Shaft Diameter Range | 8 mm to 100 mm |
| Available Types | ST...UU standard type; ST...UUB higher load type |
| Application | Linear shaft systems, automation equipment, packaging machinery, handling units and customized linear motion assemblies |
ST...UU and ST...UUB Type Difference
The ST...UU type is suitable for standard linear shaft guidance where smooth motion and compact installation are required. The ST...UUB type is designed with higher basic load rating, making it suitable for applications where the bearing needs stronger load support.
When selecting between ST...UU and ST...UUB, the working load, shaft diameter, travel route, installation space, working temperature and lubrication condition should be confirmed together.
Load Rating and Weight
| ST...UU Type | Travel Route Max | C kN | Co kN | Weight g | ST...UUB Type | Travel Route Max | C kN | Co kN | Weight g |
|---|---|---|---|---|---|---|---|---|---|
| ST 8UU | 14 | 0.98 | 0.27 | 17 | - | - | - | - | - |
| ST 10UU | 16 | 2.35 | 0.62 | 31 | - | - | - | - | - |
| ST 12UU | 17 | 4.02 | 1.08 | 49 | - | - | - | - | - |
| ST 16UU | 24 | 4.02 | 1.27 | 80 | - | - | - | - | - |
| ST 20UU | 32 | 4.12 | 1.57 | 112 | ST 20UUB | 12 | 8.33 | 3.24 | 125 |
| ST 25UU | 32 | 4.12 | 1.76 | 132 | ST 25UUB | 12 | 8.14 | 3.63 | 145 |
| ST 30UU | 65 | 9.31 | 4.12 | 245 | ST 30UUB | 27 | 18.7 | 8.14 | 280 |
| ST 35UU | 75 | 9.31 | 4.51 | 375 | ST 35UUB | 37 | 18.7 | 9.02 | 420 |
| ST 40UU | 91 | 9.41 | 6.18 | 580 | ST 40UUB | 49 | 25.0 | 12.4 | 640 |
| ST 45UU | 91 | 12.5 | 6.76 | 635 | ST 45UUB | 49 | 25.2 | 13.5 | 705 |
| ST 50UU | 120 | 12.6 | 8.82 | 920 | ST 50UUB | 70 | 32.5 | 17.7 | 1030 |
| ST 55UU | 120 | 16.3 | 9.71 | 1280 | ST 55UUB | 70 | 33 | 19.3 | 1400 |
| ST 60UU | 120 | 16.6 | 10.5 | 1370 | ST 60UUB | 70 | 33.6 | 21.0 | 1490 |
| ST 70UU | 120 | 16.8 | 11.7 | 1450 | ST 70UUB | 70 | 33.6 | 23.3 | 1680 |
| ST 80UU | 114 | 21.3 | 15.3 | 2240 | ST 80UUB | 58 | 42.5 | 30.6 | 2450 |
| ST 90UU | 114 | 21.7 | 16.9 | 2470 | ST 90UUB | 58 | 43.3 | 33.7 | 2700 |
| ST 100UU | 114 | 22.0 | 18.3 | 2700 | ST 100UUB | 58 | 43.9 | 36.8 | 2940 |
Main Dimensions
| dr mm | D mm | L mm | e1 | T | t | d | r |
|---|---|---|---|---|---|---|---|
| 8 | 15 | 24 | 15.3 | 1.5 | 0.5 | 1.5 | 0.5 |
| 10 | 19 | 30 | 18.5 | 1.5 | 0.5 | 1.5 | 0.5 |
| 12 | 23 | 32 | 20.1 | 1.5 | 0.5 | 1.5 | 0.5 |
| 16 | 28 | 37 | 24.1 | 1.5 | 0.5 | 1.5 | 0.5 |
| 20 | 32 | 45 | 30.8 | 2 | 0.5 | 2 | 0.5 |
| 25 | 37 | 45 | 30.8 | 2 | 0.5 | 2 | 1 |
| 30 | 45 | 65 | 50.1 | 2.5 | 0.5 | 2.5 | 1 |
| 35 | 52 | 70 | 55.1 | 2.5 | 0.7 | 2.5 | 1.5 |
| 40 | 60 | 80 | 64.9 | 2.5 | 0.7 | 2.5 | 1.5 |
| 45 | 65 | 80 | 64.9 | 2.5 | 0.7 | 2.5 | 1.5 |
| 50 | 72 | 100 | 83.4 | 3 | 1 | 3 | 1.5 |
| 55 | 80 | 100 | 83.4 | 3 | 1 | 3 | 2 |
| 60 | 85 | 100 | 83.4 | 3 | 1 | 3 | 2 |
| 70 | 95 | 100 | 83.4 | 3 | 1 | 3 | 2 |
| 80 | 110 | 100 | 83 | 3 | 1.5 | 3 | 2 |
| 90 | 120 | 100 | 83 | 3 | 1.5 | 3 | 2 |
| 100 | 130 | 100 | 83 | 3 | 1.5 | 3 | 2 |
How to Select the Right Model
- Confirm the shaft diameter first, such as 20 mm, 30 mm, 40 mm or 60 mm.
- Choose ST...UU for standard load and general linear guidance.
- Choose ST...UUB when higher basic load rating is required.
- Check travel route, bearing length and installation space before confirming the model.
- For high-temperature use, confirm working temperature, shaft hardness, lubrication and surrounding environment before ordering.
Applications
ST...UU and ST...UUB high temperature linear bearings can be used in linear shaft guide systems where round bearing structure, compact installation and stable linear motion are required.
- Industrial automation equipment
- Packaging machinery
- Material handling systems
- Heating-related machinery
- Customized linear shaft assemblies
For model selection, please provide the shaft diameter, required load, travel route, working temperature and installation condition. DLY can help confirm a suitable ST...UU or ST...UUB high temperature linear bearing model.
WhatsApp: +86 166 0578 8856
Email: dlyexport2@dlybearing.com
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