Applications
Where this spring style fits
Review best-fit uses, assembly constraints and situations where another spring style may be a better choice.
View application guidance →Wave Springs
Custom Single-Turn Overlap Wave Springs
Single-turn axial wave springs with overlapping ends, defined by working height, end freedom and radial installation clearance.
- Specification
- Drawing and working requirement
- Dimensions
- Confirmed for the assembly
- Performance
- Specified at working positions
- Quotation
- Submit dimensions and quantity
About Custom Single-Turn Overlap Wave Springs
An overlap wave spring has a single wavy turn with ends that overlap rather than forming a closed stamped washer. The end arrangement permits circumferential movement as the spring changes diameter during axial compression. Selection must account for that movement inside the cavity. Specify axial load at working height and check both bore and shaft clearances throughout the required stroke.
Key Design Characteristics
- Show the overlap feature and leave room for its working movement.
- Review radial clearance at compressed as well as free conditions.
- Define the seating faces and the required axial load.
Choosing Between Related Designs
A gap-type wave spring has separated ends; an overlap type has overlapping ends. Both differ from a continuous stamped wave washer. A multi-turn wave spring should be compared separately if the required travel is different.
Specification and Inspection Review
Include cavity fit and freedom of end movement in acceptance checks. A load test between flat seats should use the agreed working height and any relevant radial constraint from the actual assembly.
Product Specification
What to Define for This Spring
Use these product-specific inputs to describe your requirement. Final dimensions, material and performance are confirmed against the drawing and operating conditions.
| Specification item | What to define |
|---|---|
| Cavity dimensions | Bore, shaft and available radial space. |
| Axial working range | Free height, working height and maximum deflection. |
| Required force | Load and tolerance at the installation height. |
| Overlap geometry | End overlap and permitted circumferential movement. |
| Material and section | Flat-wire width, thickness, grade and surface condition. |
Next Design Decisions
Next Steps for Your Spring Design
Once the spring style is selected, confirm how it works in the assembly, which material suits the environment, how it will be manufactured and which dimensions and performance points should be controlled on the drawing.
Materials
Choose the material for the environment
Review flat-wire grade and surface condition against seating contact, corrosion and the required deflection.
Compare spring materials →Manufacturing
Plan prototype and production
Review forming, heat treatment, secondary operations, inspection and the path from first samples to repeat production.
View manufacturing capabilities →Engineering Data
Use the engineering guide for design support
Use the engineering library to review materials, sizing considerations and applicable standards for the custom design.
Open Spring Engineering Guide →Material Direction
Common Material Families to Review
The links below are selection guides, not a claim that every grade is suitable for every size or load.
Compare Designs
Related Spring Products
Use these alternatives when the available space, connection style, travel or force direction changes.
Wave Springs
Crest-to-Crest Wave Springs
Multi-turn axial wave springs specified by working height, required load, bore clearance and shaft clearance.
Wave Springs
Wave Expanders / Marcel Expanders
Circular wave-formed expanders for radial loading, specified by installed diameter, cavity geometry and the required outward force.
Wave Springs
Crest-to-Crest Wave Springs with Shim Ends
Multi-turn wave springs with flat shim-end contact features, specified for the required seat interface and axial load-height range.
Product Questions
Single-Turn Overlap Wave Springs FAQ
Why must the ends be free to move?
Compression changes the ring geometry. The overlap needs enough freedom to accommodate the intended movement within the cavity.
Can it be selected from outside diameter alone?
No. Working height, axial force, shaft clearance and the permitted end movement also need to be defined.
RFQ
Send the Working Requirement
A drawing is ideal. If you do not have one yet, provide the dimensions, load or torque, travel, environment and expected quantity that matter in the assembly.
CustomSprings Engineering Catalog
Request This Spring
Send your dimensions, quantity and drawing for engineering review.