A cantilever V spring energizer is a formed metal spring used inside spring-energized seals. Its V-shaped profile provides spring force to the polymer sealing jacket, helping maintain contact with the mating surface as the seal wears or dimensional conditions change.
The two legs of the spring deflect under compression. By adjusting the profile geometry, material thickness, and installed deflection, the spring can be designed to provide the load required by a particular sealing application.
Cantilever V springs are commonly considered for dynamic sealing systems where controlled spring force and low-friction operation are important. Final performance depends on the spring design, seal geometry, polymer material, and operating conditions.
Cantilever V springs can be designed around the required spring force, available installation space, and operating conditions. The main design variables include:
Dimension Reference: S = Width | H = Height | C = Material Thickness
Custom dimensions available. Contact us for full specifications or specialized OD, strip thickness/width solutions.
Handa Spring offers standard V spring profiles as well as custom designs. The table below shows selected standard sizes. Dimensions and availability should be confirmed against the current product specification. Custom profiles can be developed based on drawings, sample parts, or application requirements.
| Series | S (mm | “) | H (mm | “) | C (mm | “) |
|---|---|---|---|
| HDY-CVS-095120010 | 0.95mm | .037″ | 1.20mm | .047″ | 0.10mm | .004″ |
| HDY-CVS-119104008 | 1.19mm | .047″ | 1.04mm | .041″ | 0.08mm | .003″ |
| HDY-CVS-150150008 | 1.50mm | .059″ | 1.50mm | .059″ | 0.08mm | .003″ |
| HDY-CVS-200200012 | 2.00mm | .079″ | 2.00mm | .079″ | 0.12mm | .0047″ |
| HDY-CVS-250250012 | 2.50mm | .098″ | 2.50mm | .098″ | 0.12mm | .0047″ |
| HDY-CVS-350350015 | 3.50mm | .138″ | 3.50mm | .138″ | 0.15mm | .0059″ |
| HDY-CVS-450450020 | 4.50mm | .177″ | 4.50mm | .177″ | 0.20mm | .0079″ |
| HDY-CVS-622597025 | 6.22mm | .245″ | 5.97mm | .235″ | 0.25mm | .0098″ |
| HDY-CVS-808914050 | 8.08mm | .318″ | 9.14mm | .36″ | 0.50mm | .0197″ |
| Request the Full Specification Sheet | |||
The load produced by a cantilever V spring depends on its profile geometry, material properties, thickness, and deflection. The relationship between load and deflection should be evaluated over the intended working range.
V spring designs can be tailored to provide the contact force required by the sealing system while accounting for friction, elastic recovery, and cyclic movement.
When selecting a V spring for dynamic service, the working deflection and required load should be considered together. Excessive deflection or an unsuitable profile may affect friction, recovery, and fatigue performance.
For a custom design, Handa Spring can review the required dimensions and load targets to determine a suitable configuration.
The load-deflection curve shown here illustrates the general behavior of the spring designs compared. Actual values depend on the specific spring profile and test conditions.
Different spring profiles provide different load and deflection characteristics. The appropriate design depends on the required spring force, available space, sealing motion, and operating conditions.
| Spring Type | Main Design Characteristic | Selection Consideration |
|---|---|---|
| Cantilever V | V-shaped profile with two deflecting legs | Consider for applications requiring a tailored load response and low-friction dynamic sealing |
| Cantilever U | U-shaped cantilever profile | Evaluate when the U-shaped geometry better suits the available space and required spring response |
| Helical | Helically formed spring profile | Consider when the required load-deflection behavior and available spring space suit a helical design |
| Canted Coil | Angled coil geometry | Consider when its load characteristics and deflection behavior suit the sealing design |
| Full Contact | Profile designed for continuous contact within its working configuration | Evaluate according to contact geometry and required spring response |
| Detached Leg | Profile with separated legs | Consider when the geometry and force requirements call for an independent-leg configuration |
The spring type should be selected based on the actual design requirements rather than the profile name alone. Handa Spring can review the application details and recommend a suitable configuration.
Not sure which spring type fits your application? Contact our engineering team for selection support →
Materials
Material selection depends on the required spring force, elastic recovery, operating temperature, corrosion resistance, and expected cycle life.
Handa Spring can manufacture spring energizers from selected stainless steels and high-performance alloys, subject to profile and material availability.
A cobalt-based alloy option for demanding spring applications requiring corrosion resistance and fatigue performance.
Nickel-based alloy options for applications where elevated-temperature performance or other specific mechanical properties are required.
Considered for selected applications requiring resistance to aggressive chemical environments.
Considered for spring applications requiring strength and elastic performance.
The final material should be selected according to the operating environment and required mechanical performance. Not every alloy is suitable for every spring profile or manufacturing process.
Handa Spring manufactures cantilever V spring energizers to customer drawings, samples, or agreed design requirements. Customization focuses on the spring profile, material thickness, dimensions, and load characteristics required for the application.
For custom projects, tooling requirements and costs depend on the design. Where applicable, tooling cost can be credited or refunded once the agreed production volume is reached, according to the quotation terms.
To help us evaluate your project, please provide a drawing or sample and any available information about the required spring force, installation space, operating environment, and expected production quantity.
Applications
Cantilever V spring energizers are used in spring-energized sealing systems where the spring profile and load response suit the required operating conditions.
Fo Suitability depends on the complete seal design, including the polymer jacket, mating surfaces, operating media, temperature, pressure, and motion conditions.
1. What is a cantilever V spring energizer?
2. What design parameters affect V spring performance?
3. What materials are available?
4. Can Handa Spring manufacture custom V springs?
5. Are cantilever V springs suitable for dynamic sealing?
6. What information is needed for a quotation?
Contact Handa
Our engineering team can recommend the optimal cantilever V spring energizer based on your seal design, motion type, operating pressure, and temperature.
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