Bearing Disc Spring with Ultra-High Cycle Durability for High-Speed Continuous Bearing Operation and Fatigue Resistance
Product Details
| Material: | 50CrVA, 60Si2MnA | Carbon Content: | 1.05% (50CrVA), 0.6% (60Si2MnA) |
|---|---|---|---|
| Vanadium Content: | 0.8% (50CrVA) | Molybdenum Content: | 0.25% (50CrVA) |
| Silicon Content: | 2.0% (60Si2MnA) | Manganese Content: | 1.0% (60Si2MnA) |
| Quenching Temperature: | 860°C (50CrVA), 870°C (60Si2MnA) | Tempering Temperature: | 420°C (50CrVA), 480°C (60Si2MnA) |
| Hardness: | HRC 45-50 (50CrVA) | Tensile Strength: | 1800MPa (50CrVA) |
| Elastic Limit: | ≥1200MPa (60Si2MnA) | Fatigue Life: | >10⁷ Cycles At 40% Load |
| Preload Retention: | >95% After 10⁶ Cycles | Load Variance: | ±3% In Stacked Configurations |
| Load Multiplication: | 2.5-5.2x At Equivalent Displacement | Max RPM: | 25,000 RPM |
| Stress Relief Fillets: | R0.3-R0.8mm | Wall Thickness Tolerance: | ±0.005mm |
| Stacking Range: | 2-8 Discs | Operating Frequency: | Up To 500Hz |
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Product Description
- Optimized annular geometry with stress-relieved fillets (R0.3-R0.8mm)
- Uniform wall thickness (±0.005mm) eliminates stress concentration points
- High-frequency preload cycling capability (up to 500Hz)
- 50CrVA alloy steel (1.05%C-0.8%V-0.25%Mo)
- 60Si2MnA alloy steel (0.6%C-2.0%Si-1.0%Mn)
- 50CrVA: 860°C quenching + 420°C tempering → HRC 45-50 hardness, 1800MPa tensile strength
- 60Si2MnA: 870°C quenching + 480°C tempering → ≥1200MPa elastic limit
- Fatigue life exceeds 10⁷ cycles at 40% of ultimate load
- Preload force retention >95% after 10⁶ compression-rebound cycles (ISO 10243)
- Uniform load distribution (±3% variance) in parallel stacked configurations
- Load multiplication ratios: 2.5-5.2x at equivalent displacement
- Stable preload for high-speed bearings up to 25,000 RPM
Product Highlights
Bearing disc springs with ultra-high cycle durability (10⁷+ cycles) for high-speed continuous operation up to 25,000 RPM. Premium alloy steel construction with ISO 10243 certification ensures >95% preload retention and stable performance in extreme conditions.
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