Korogard Pro Bearing®-MD
コロガードプロベアリング® / JTEKT Corporation (Official website) / Listed on page 7 of the document
Corrosion-resistant bearing made of precipitation-hardening stainless steel, resistant to salt water and solutions, and suitable for vacuum use.
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Specifications
| Atmospheric pressure | Atmospheric pressure to 10-5 Pa |
|---|---|
| Operating Temperature Range | -30～200 ℃ |
| Permissible rotational speed | dmn value < 18000, max. 1000 min-1 |
| Permissible radial load | Approx. 3% or less of basic dynamic load rating |
コロガードプロベアリング® model comparison
Compare 3 models in the same series by specification.
| Model | Operating Temperature Range | Atmospheric pressure | Permissible rotational speed | Permissible radial load |
|---|---|---|---|---|
| コロガードプロベアリング®-MD This product | -30～200 ℃ | Atmospheric pressure to 10-5 Pa | dmn value < 18000, max. 1000 min-1 | Approx. 3% or less of basic dynamic load rating |
| コロガードプロベアリング®-SC | -30～300 ℃ | Atmospheric pressure to 10-5 Pa | dmn value < 18000, max. 1000 min-1 | Approx. 3% or less of basic dynamic load rating |
| コロガードプロベアリング®-ZO | -30～150 ℃ | Atmospheric pressure to 10-5 Pa | dmn value < 18000, max. 1000 min-1 | 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 (Korogard Pro Bearing®-MD).
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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
Uses precipitation-hardening stainless steel with excellent corrosion resistance, combining ceramic balls and a PEEK cage to suit salt water, solution, and vacuum environments.
Features
- Resistant to salt water and solutions
- Suitable for vacuum environments
Applications
- Semiconductor manufacturing equipment
- Food machinery
- Chemical manufacturing equipment
- Washing equipment
- Chemical equipment
- Conveying equipment
FAQ
- Q. In what environments can the Korogard Pro Bearing®-MD be used?
- A. It is suitable for salt water, solution, and vacuum environments. It supports atmospheric pressure to 10-5 Pa.
- Q. What are the operating temperature range and permissible rotational speed of the Korogard Pro Bearing®-MD?
- A. The operating temperature range is -30 to 200 ℃. The permissible rotational speed is dmn value < 18000, with a maximum of 1000 min-1.
- Q. What are the material and structural features of the Korogard Pro Bearing®-MD?
- A. It uses precipitation-hardening stainless steel and combines ceramic balls with a PEEK cage.
- Q. What is the permissible radial load of the Korogard Pro Bearing®-MD?
- A. It is approximately 3% or less of the basic dynamic load rating.
- Q. What applications is the Korogard Pro Bearing®-MD used for?
- A. It is used in semiconductor manufacturing equipment, food machinery, chemical manufacturing equipment, washing equipment, chemical equipment, conveying equipment, and similar applications.
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 7
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