Resin Ball Bearing
単列深溝玉軸受・スラスト玉軸受 / SKF (Official website) / Listed on page 100 of the document
Resin ball bearing with excellent corrosion and chemical resistance. Self-lubricating, used in food, medical and chemical fields.
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Specifications
| Inner diameter d | 3～60 mm |
|---|
How to choose Rolling Bearings
Points to check when selecting, with the values for this product (Resin Ball Bearing).
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1. Bore and housing bore dimensions
This product: Inner diameter d 3～60 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
Bearing with ra878 rings made of resin (POM, PP), balls of stainless steel or glass, and a resin cage. Single-row deep groove ball bearings are available in bore diameters of 3 to 60 mm, and thrust ball bearings in bore diameters of 10 to 45 mm.
Features
- Corrosion and chemical resistance
- Self-lubricating (no lubrication required)
- Low friction and quiet operation
- Lightweight
- Electrical insulation
Applications
- Food and beverage industry
- Medical and pharmaceutical industry
- Chemical industry
- Textile industry
- Electrical industry
- Photographic industry
- Vacuum applications
- Office equipment
FAQ
- Q. Within what range can I select the bore diameter of resin ball bearings (SKF single-row deep groove ball bearings and thrust ball bearings)?
- A. Single-row deep groove ball bearings are available in bore diameters of 3 to 60 mm, and thrust ball bearings in bore diameters of 10 to 45 mm.
- Q. What materials are used for the rings, balls, and cage of resin ball bearings?
- A. The rings are made of resin (POM, PP), the balls are stainless steel or glass, and the cage is made of resin.
- Q. What are the features of resin ball bearings regarding corrosion resistance, chemical resistance, and lubrication?
- A. They offer excellent corrosion and chemical resistance and are self-lubricating, so no lubrication is required.
- Q. In which fields and applications are resin ball bearings used?
- A. They are used in the food and beverage, medical and pharmaceutical, chemical, textile, electrical, photographic industries, vacuum applications, office equipment, and more.
- Q. What are the characteristics of resin ball bearings regarding operating noise, electrical properties, and weight?
- A. They offer low friction and quiet operation, are lightweight, and have electrical insulation.
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 100
Found on: https://azuma-eg.com/catalogue/
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