1561T651
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| Part Number | BFGBTGFB |
| System of Measurement | Inch |
| Spring Type | Disc |
| Height | 1" |
| Compressed Height @ Working Load | 0.415" |
| Deflection @ Working Load | 0.585" |
| Material | High-Carbon Steel |
| Disc Spring Type | Wave |
| For Hole Diameter | 1 3/4" |
| For Shaft Diameter | 1 5/16" |
| Working Load | 25 lbf |
| Thickness | 0.018" |
| Features | Flat Ends |
| RoHS | RoHS 3 (2015/863/EU) Compliant |
| REACH | REACH (EC 1907/2006) (01/21/2025, 247 SVHC) Compliant |
| DFARS | Specialty Metals COTS-Exempt |
| Country of Origin | China |
| USMCA Qualifying | No |
NOTE：All other trademarks are the property of their respective owners.
All other trademarks mentioned herein are used for the purpose of compatibility description and product identification only. Lily Bearing is not affiliated with, endorsed by, or sponsored by the holders of these trademarks.
Lily Bearing’s BFGBTGFB Stacked Wave Disc Springs (Nested Wave Springs) are high-precision tensioning devices designed for extreme load requirements in space-constrained environments. By utilizing a continuous, multi-turn flat wire design, these springs deliver the massive force of a traditional disc spring stack while maintaining the alignment stability of a single-piece component.
Key Technical Advantages of BFGBTGFB Springs
- Nested vs. Individually Stacked: Unlike stacking individual wave washers, our Nested design is coiled from a single filament. This ensures that the waves stay perfectly synchronized, eliminating the risk of wave-peak interference or "nesting failure" common in manual stacks.
- Proportional Force Scaling: The load capacity increases linearly with the number of turns. A 3-turn stacked spring provides triple the force of a single-turn spring without increasing the footprint.
- Reduced Operating 1": Replaces bulky coil springs by occupying up to 50% less axial space while providing identical or higher loads.
- Flat-Wire Precision: Our springs feature deburred, rounded edges that prevent internal friction and gouging, extending the fatigue life of both the spring and the housing.
Critical Applications for BFGBTGFB Springs
Stacked wave disc springs are indispensable in precision engineering where performance reliability and space optimization are non-negotiable:
- High-Load Bearing Preloading: Specifically designed for high-precision ball bearings and roller bearings to eliminate axial play, reduce operating noise, and compensate for thermal expansion under heavy-duty conditions.
- Seals & High-Pressure Valves: Provides consistent, high-sealing pressure in compact valve bodies. It is the preferred choice for oil and gas equipment where space for traditional springs is unavailable.
- Transmission & Clutch Systems: Ensures uniform and consistent engagement force in automotive and industrial drive systems, allowing for a more compact transmission design.
- Aerospace & Electrical Connectors: Maintains critical contact pressure in high-vibration environments, ensuring uninterrupted performance in aerospace and defense applications.
