Cage/Retainer is a critical bearing component that separates and guides rolling elements in industrial-grade ladle turret bearings, ensuring proper spacing and alignment under extreme loads.
| Parameter | Typical range | Notes & selection driver |
|---|---|---|
| Hardness | 40-45 HRC (core), 55-60 HRC (surface treated) | |
| Surface Finish | Ra ≤ 0.8 μm (rolling contact surfaces) | |
| Pocket Clearance | 0.1-0.3 mm per rolling element diameter | |
| Weight Tolerance | ±2% of nominal mass | |
| Dimensional Tolerance | IT6-IT7 per ISO 286 | |
| Operating Temperature Range | -40°C to 400°C (continuous), peaks to 800°C | |
| Thermal Expansion Coefficient | 11.5×10⁻⁶/°C (matched to bearing steel) |
Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.
This component is used in the following industrial products
Heavy-duty bearing assembly for steel ladle turret rotation in continuous casting.
Precision bearing supporting compression rollers in pharmaceutical tablet presses
A mechanical assembly within a furniture hinge that facilitates smooth rotational movement and reduces friction between moving parts.
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Manufacturer profiles associated with Cage/Retainer.
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Ladle turret cages must withstand intermittent exposure to radiant heat from molten metal (up to 800°C), thermal shock during pouring cycles, and heavy impact loads. Standard bearing steels would anneal or warp under these conditions.
Proper cage design prevents rolling element contact (skidding), distributes loads evenly, accommodates thermal expansion differentials, and maintains lubrication pockets - all critical for preventing premature spalling, brinelling, or catastrophic bearing failure.
Yes, but replacement requires complete bearing disassembly, thorough cleaning, and verification of dimensional compatibility with existing rolling elements and raceways. Mixed component ages can accelerate wear.
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