SKF High-Temperature Insert Bearing Ball Bearing Unit VA201
VA201 / SKF (Official website)
High-temperature insert bearing ball bearing unit lubricated with polyalkylene glycol and graphite, for operating temperatures up to 250°C. Not food grade.
Last verified: (date the content was verified against the source document)
Specifications
| Maximum Operating Temperature | 250 °C |
|---|---|
| Limiting rotational speed | 4500/d (d = mean bearing diameter) r/min |
| Break-In Operation | Required |
VA201 model comparison
Compare 2 models in the same series by specification.
| Model | Maximum Operating Temperature | Break-In Operation |
|---|---|---|
| SKF高温用インサート軸受・玉軸受ユニット VA201 This product | 250 °C | Required |
| SKF高温用深溝玉軸受 VA201 | 250 °C | Required |
How to choose Rolling Bearings
Points to check when selecting, with the values for this product (SKF High-Temperature Insert Bearing Ball Bearing Unit VA201).
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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
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
Pre-packed with lubricant and lubricated for the life of the bearing. Running-in is required for low-temperature applications. Equipped with shields and flingers.
Features
- Maximum operating temperature 250°C
- Shields and flingers (2F)
- Running-in required
Applications
- Conveying and rotating machinery at medium temperatures
FAQ
- Q. What are the maximum operating temperature and lubrication method of the VA201?
- A. The maximum operating temperature is 250 °C. It is lubricated with polyalkylene glycol and graphite, and is pre-packed with lubricant and lubricated for the life of the bearing.
- Q. Can the VA201 be used in food-related applications?
- A. No, it is not food grade.
- Q. What are the limiting speed of the VA201 and the precautions for low-temperature applications?
- A. The limiting speed is 4500/d (d = mean bearing diameter) r/min. Running-in is required for low-temperature applications.
- Q. What sealing structure does the VA201 have?
- A. It is equipped with shields and flingers (2F).
Written by AI based on the content of the source documents.
Source documents
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Catalog
SKF高温用軸受 最高運転温度350 °C(660 °F)
40 pages Found on: https://azuma-eg.com/catalogue/
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