Ultra-High and Low Temperature Single-Row Deep Groove Ball Bearings
VA201 / VA208 / VA228 対応 単列深溝玉軸受 / SKF (Official website) / Listed on page 31 of the document
A series of single-row deep groove ball bearings usable in ultra-high temperature and cryogenic environments. Offered in a wide range of bore sizes from 10 to 120 mm.
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Specifications
| Inner diameter d | 10〜120 mm |
|---|---|
| Outer diameter D | 35〜180 mm |
| Width B | 10〜34 mm |
How to choose Rolling Bearings
Points to check when selecting, with the values for this product (Ultra-High and Low Temperature Single-Row Deep Groove Ball Bearings).
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1. Bore and housing bore dimensions
This product: Inner diameter d 10〜120 mmSelect 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
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
Single-row deep groove ball bearings compatible with the VA201, VA208, and VA228 specifications. Shielded (2Z) variants are available. Dimensions: bore diameter 10 to 120 mm, outside diameter 35 to 180 mm. Basic dynamic load rating, basic static load rating, and limiting speed are listed.
Features
- Compatible with ultra-high and cryogenic temperatures
- Shielded (2Z) variants available
- Selectable from VA201, VA208, and VA228 specifications
Applications
- Machinery for high-temperature environments
- Machinery for low-temperature environments
FAQ
- Q. Are shielded (2Z) variants available for the VA201, VA208, and VA228 compatible models of the Ultra-High and Low Temperature Single-Row Deep Groove Ball Bearings?
- A. Yes, shielded (2Z) variants are available.
- Q. What dimension ranges can be selected in the Ultra-High and Low Temperature Single-Row Deep Groove Ball Bearings series?
- A. Bore diameter d is 10 to 120 mm, outside diameter D is 35 to 180 mm, and width B is 10 to 34 mm.
- Q. What temperature environments can machines using the Ultra-High and Low Temperature Single-Row Deep Groove Ball Bearings operate in?
- A. They are compatible with ultra-high and cryogenic environments and can be used in machinery for high-temperature environments and machinery for low-temperature environments.
- Q. What performance values are listed for selecting the Ultra-High and Low Temperature Single-Row Deep Groove Ball Bearings?
- A. Basic dynamic load rating, basic static load rating, and limiting speed are listed.
Written by AI based on the content of the source documents.
Source documents
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Catalog
SKF 転がり軸受カタログ 15 エンジニアリング製品 15A センサー軸受ユニット
120 pages Open page 31
Found on: https://azuma-eg.com/catalogue/
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