EXSEV®-EX
EXSEV® / JTEKT Corporation (Official website) / Listed on page 6 of the document
Bearing sealed with fluorine-based grease for vacuum environments, combining high lubricity with low particle generation.
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Specifications
| Cleanliness level | Class 100 |
|---|---|
| Atmospheric pressure | Atmospheric pressure to 10-5 Pa |
| Operating Temperature Range | -50～260 ℃ |
| Permissible rotational speed | dmn value < 72000 min-1 |
EXSEV® model comparison
Compare 9 models in the same series by specification.
| Model | Operating Temperature Range | Atmospheric pressure | Permissible rotational speed | Permissible radial load | Cleanliness level |
|---|---|---|---|---|---|
| EXSEV®-EX This product | -50～260 ℃ | Atmospheric pressure to 10-5 Pa | dmn value < 72000 min-1 | — | Class 100 |
| EXSEV®-EX（グリース） | -50～260 ℃ | Atmospheric pressure to 10-5 Pa | — | — | Class 100 |
| EXSEV®-FA | -100～200 ℃ | Atmospheric pressure to 10-5 Pa | dmn value < 18000, max. 1000 min-1 | Approx. 1% or less of basic dynamic load rating | Class 1000 |
| EXSEV®-MG | -200～350 ℃ | 10-5～10-10 Pa | dmn value < 18000, max. 1000 min-1 | Approx. 3% or less of basic dynamic load rating | — |
| EXSEV®-MO | -100～300 ℃ | Atmospheric pressure to 10-5 Pa | dmn value < 18000, max. 1000 min-1 | Approx. 3% or less of basic dynamic load rating | — |
| EXSEV®-PN | -30～300 ℃ | Atmospheric pressure to 10-5 Pa | dmn value < 18000, max. 1000 min-1 | Approx. 3% or less of basic dynamic load rating | — |
| EXSEV®-SK | -30～120 ℃ | — | — | — | — |
| EXSEV®-WS | -100～350 ℃ | Atmospheric pressure to 10-5 Pa | dmn value < 7200, max. 500 min-1 | Approx. 5% or less of basic dynamic load rating | — |
| EXSEV®-XT | 200～300 ℃ | Atmospheric pressure to 10-5 Pa | dmn value < 7200 min-1 | — | — |
How to choose Rolling Bearings
Points to check when selecting, with the values for this product (EXSEV®-EX).
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1. Bore and housing bore dimensions
Select the bore diameter d to match the shaft seat, the outside diameter D to match the housing bore, and the width B to suit the installation space. Main dimensions are standardized in ISO and JIS dimension series, so interchangeable products can be found by boundary dimension designation. For tapered roller bearings, also check the assembled width T; for thrust bearings, also check the height H.
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2. Dynamic load rating based on life calculation
The basic dynamic load rating Cr is the reference value for calculating rated life. Verify that the required life is met using the equivalent load during operation and the rotational speed. For ball bearings, life is proportional to the cube of the load ratio, so providing load margin greatly extends life.
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3. Margin for static and shock loads
The basic static load rating C0r is the allowable standard for permanent deformation generated at the rolling elements and raceways under stationary or low-speed conditions. For applications with oscillating motion or shock loads, confirm that a static safety factor against the maximum load is secured using C0r.
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4. Operating speed and lubrication method
The limiting speed differs by lubrication method, and separate values are given for grease lubrication and oil lubrication. Confirm that the normal operating speed does not exceed the limiting value, and in high-speed ranges also consider cage material and precision grade. The reference speed can also be consulted as a thermal guideline.
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5. Precision grade and internal clearance
Precision grades (P0, P6, P5, etc.) indicate rotational accuracy and dimensional accuracy; for high-precision applications such as machine tool spindles, select higher grades. Internal clearance (C2, CN, C3, etc.) is selected to allow for changes caused by interference fit and temperature differences during operation.
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6. Materials and lubrication suited to the environment
This product: Operating Temperature Range -50～260 ℃For corrosive, high-temperature, vacuum, or clean environments, select specifications such as rings and rolling elements made of stainless steel or ceramics, or solid lubricants and fluorine grease for vacuum use. Check the operating temperature range, low dust generation, and whether food-grade grease registration applies against the application conditions.
This guide was written by AI based on the listed products' documents and specification items.
Description
A bearing sealed with fluorine-based grease (EXSEV-EX) for vacuum environments, achieving high lubricity and low particle generation in clean and vacuum applications. PFOA-free, complying with environmental regulations.
Features
- Sealed with fluorine grease for vacuum environments
- PFOA-free
Applications
- Semiconductor manufacturing equipment
- Transfer robots
- Liquid crystal manufacturing equipment
- Vacuum pumps
FAQ
- Q. In what environments can EXSEV®-EX be used?
- A. It is a rolling bearing sealed with fluorine-based grease (EXSEV-EX) for clean and vacuum applications. It is compatible with atmospheric pressure to 10-5 Pa.
- Q. What are the operating temperature range and permissible rotational speed of EXSEV®-EX?
- A. The operating temperature range is -50 to 260 ℃. The permissible rotational speed is dmn value < 72000 min-1.
- Q. What are the cleanliness class and particle generation characteristics of EXSEV®-EX?
- A. The cleanliness class is Class 100. It combines high lubricity and low particle generation in vacuum environments.
- Q. What equipment is EXSEV®-EX used in?
- A. It is used in applications such as semiconductor manufacturing equipment, transfer robots, liquid crystal manufacturing equipment, and vacuum pumps.
- Q. Does EXSEV®-EX comply with environmental regulations?
- A. Yes, it is PFOA-free and complies with environmental regulations.
Written by AI based on the content of the source documents.
Source documents
- Catalog 特殊環境用 EXSEV 商品ガイド Open page 6
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