Continuous Casting Machine Bearings (SC/SCP)
SC・SCP / JTEKT Corporation (Official website) / Listed on page 222 of the document
Full-complement cylindrical roller bearings for roll support in continuous casting machines. Available as free-side SC and fixed-side SCP types, accommodating roll thermal expansion and self-alignment.
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Specifications
| Inner diameter d | 50～220 mm |
|---|---|
| Outer diameter D | 90～370 mm |
| Permissible displacement | ±4～±19 mm |
How to choose Rolling Bearings
Points to check when selecting, with the values for this product (Continuous Casting Machine Bearings (SC/SCP)).
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1. Bore and housing bore dimensions
This product: Inner diameter d 50～220 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
Free-side SC bearings and fixed-side SCP bearings used at roll ends of continuous casting machines. High-load design with a self-aligning mechanism that absorbs roll deflection and misalignment. Bore diameter 50 to 220 mm.
Features
- Full-complement roller design increases basic static load rating
- Inner ring can move axially to accommodate thermal expansion of rolls
- Axial load can be carried by flanges and flange rings
Applications
- Roll support in continuous casting machines
FAQ
- Q. How do the free-side SC and fixed-side SCP bearings of the Continuous Casting Machine Bearings (SC/SCP) accommodate thermal expansion and misalignment of rolls?
- A. The bearings are available as free-side SC and fixed-side SCP types, and the inner ring can move axially to accommodate thermal expansion of rolls. They have a self-aligning mechanism that absorbs roll deflection and misalignment.
- Q. What are the bore diameter, outside diameter, and allowable axial displacement ranges of the Continuous Casting Machine Bearings (SC/SCP)?
- A. Bore diameter d is 50 to 220 mm, outside diameter D is 90 to 370 mm, and allowable displacement is ±4 to ±19 mm.
- Q. Can the Continuous Casting Machine Bearings (SC/SCP) carry axial loads?
- A. Yes, axial loads can be carried by flanges and flange rings.
- Q. What applications are the Continuous Casting Machine Bearings (SC/SCP) used for, and what are their load capacity features?
- A. They are used for roll support at roll ends of continuous casting machines. The full-complement roller design increases basic static load rating, resulting in a high-load design.
Written by AI based on the content of the source documents.
Source documents
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