K Series Full-Ball Combination Ceramic Bearing
Model 3NC□□□□VST4-1 / Kシリーズ / JTEKT Corporation (Official website) / Listed on page 9 of the document
Ultra-thin section full-ball ceramic bearing. Compatible with clean and vacuum applications.
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Specifications
| Atmospheric pressure | Atmospheric pressure to 10-5 Pa |
|---|---|
| Operating Temperature Range | -30～200 ℃ |
| Permissible radial load | Approx. 3% or less of basic dynamic load rating |
How to choose Rolling Bearings
Points to check when selecting, with the values for this product (3NC□□□□VST4-1).
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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 -30～200 ℃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
Ultra-thin section ball bearing with clean specification, suitable for clean environments and vacuum applications.
Features
- Ultra-thin section
- Clean specification
Applications
- Wafer transfer robots
- LCD manufacturing equipment
- Semiconductor manufacturing equipment
FAQ
- Q. In what environments can the K Series Full-Ball Combination Ceramic Bearing 3NC□□□□VST4-1 be used?
- A. It is suitable for clean environments and vacuum applications. The atmospheric pressure range is from atmospheric pressure to 10-5 Pa, and the operating temperature range is -30 to 200 ℃.
- Q. What are the main applications of the K Series Full-Ball Combination Ceramic Bearing 3NC□□□□VST4-1?
- A. Wafer transfer robots, LCD manufacturing equipment, and semiconductor manufacturing equipment.
- Q. What are the features of the K Series Full-Ball Combination Ceramic Bearing 3NC□□□□VST4-1, and what is its allowable radial load?
- A. It is an ultra-thin section full-ball ceramic bearing with a clean specification. The allowable radial load is approximately 3% or less of the basic dynamic load rating.
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 9
- Catalog 半導体製造工程内で活用できる製品シリーズ ①②
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