JHS Series Self-Aligning Roller Bearing
JHS / JTEKT Corporation (Official website) / Listed on page 6 of the document
Highly durable self-aligning roller bearing achieving long life, high speed, and high-temperature capability through optimized bearing material and internal design, and dimensional stabilization treatment.
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Specifications
| Inner diameter d | 25〜160 mm |
|---|---|
| Service Life Improvement | Max. 2 倍 |
| Speed increase | Max. 25 %UP |
| Operating Temperature | 〜200 ℃ |
How to choose Rolling Bearings
Points to check when selecting, with the values for this product (JHS Series Self-Aligning Roller Bearing).
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1. Bore and housing bore dimensions
This product: Inner diameter d 25〜160 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
Features extended service life through the use of JTEKT specified steel, higher speed through improved internal design and lubricity, and high-temperature capability up to approximately 200°C through dimensional stabilization treatment. Available in both cylindrical bore and tapered bore specifications.
Features
- Longer service life through improved material cleanliness
- Higher speed through improved internal design and lubricity
- Dimensional stabilization treatment enables operation up to approximately 200°C
Applications
- Speed reducers
FAQ
- Q. What is the bore diameter (d) range of the JHS Series self-aligning roller bearings, and are both cylindrical bore and tapered bore specifications available?
- A. The bore diameter d ranges from 25 to 160 mm. Both cylindrical bore and tapered bore specifications are available.
- Q. What applications are the JHS Series self-aligning roller bearings suited for, and what is the upper limit of their operating temperature?
- A. They are intended for use in speed reducers. Due to the dimensional stabilization treatment, they can operate at temperatures up to approximately 200°C.
- Q. How much has the service life and high-speed performance of the JHS Series self-aligning roller bearings improved compared with conventional products?
- A. Through the use of JTEKT specified steel and improved material cleanliness, service life is increased by up to 2 times. Through improved internal design and lubricity, high-speed performance is increased by up to 25%.
Written by AI based on the content of the source documents.
Source documents
- Catalog 農業機械・建設機械用 商品のご紹介 Open page 6
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