Design reference
Derived from DIN 2093 / DIN EN 16983 base dimensions with slots or contact flats added per drawing
Disc Springs / Belleville Washers
Custom Slotted & Contact Disc Springs
Customized disc-spring variants with slots, contact flats or special interfaces for compact axial force where a standard Belleville disc does not match the mating geometry.
- Manufacturing basis
- Made to drawing
- Wire / thickness
- Thickness 0.2 - 6 mm, following DIN 2093 groups
- Envelope
- 8 - 200 mm typical
- Length / height
- Cone height 0.4 - 8 mm typical
About Custom Slotted & Contact Disc Springs
Slotted and contact disc springs start from the same compact conical-disc concept as Belleville springs but add application-specific features. Slots can change flexibility and load distribution; contact flats or tabs can control where force enters the assembly. These features make drawing-based review essential.
Key Design Characteristics
- Slot count, width and root geometry influence stiffness and local stress.
- Contact flats define load-entry points and can reduce unwanted edge contact in the assembly.
- Base disc OD, ID, thickness and cone height still control the overall envelope.
- Modified discs should not be assumed to follow an unmodified DIN load curve.
What to Specify for a Custom Quote
- OD, ID, thickness and free cone height
- Slot pattern or contact-flat geometry
- Required load and working deflection
- Mating surfaces, guide features and allowable rotation
- Material, surface condition, cycles and quantity
Manufacturing Review
Laser cutting, stamping, machining and forming routes can produce different edge conditions and residual stress. The chosen process should be matched to thickness, volume and fatigue requirement, followed by functional checking of the finished geometry.
Common Assembly Roles
- Compact contact-force interfaces
- Special valve or clutch elements
- Disc-spring functions with non-standard engagement geometry
Made to Order
How This Product Is Quoted
This category is reviewed from the drawing and working requirement rather than from a fixed public stock list.
Typical material direction
51CrV4 spring steel, 301/304 stainless
Why there is no fixed table
Slot pattern and contact-flat geometry are application-specific and confirmed against a drawing.
Engineering Data
Typical Dimensions & Design Data
Use these data points to compare geometry, material and working parameters when defining your custom spring. Final values are reviewed and confirmed for the actual assembly before production.
| Configuration | Data type | Key parameters | Material / basis |
|---|---|---|---|
| Engineering Data 01 | Standard Dimension |
|
Spring steel / stainless / specialty alloy |
| Engineering Data 02 | Engineering Data |
|
Depends on standard/type |
| Engineering Data 03 | Material Option |
|
Depends on the specific series |
| Typical Configuration 04Data point | Typical Configuration |
|
Spring steel / alloy per SCHNORR series |
| Typical Configuration 05Data point | Typical Configuration |
|
Spring steel / alloy per SCHNORR series |
| Typical Configuration 06Data point | Typical Configuration |
|
Spring steel / alloy per SCHNORR series |
Design note: dimensions, force / torque, material, tolerances, fatigue life and compliance are finalized against your drawing and operating conditions during quotation.
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.
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 →Materials
Choose the material for the environment
Spring steel and stainless grades are common starting points. Slot roots and formed contact features may control fatigue, so material condition and edge quality should be reviewed together.
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.
Disc Springs / Belleville Washers
DIN 2093 Belleville Disc Springs
Conical disc springs referenced to DIN 2093 / DIN EN 16983 for high axial force in short travel, with stack arrangements available to change total force and deflection.
Disc Springs / Belleville Washers
Diaphragm Springs
A thin conical plate spring, often with radial fingers, for clutch, valve and compact force-control assemblies that need a broad annular load path.
Spring Washers
Wave, Curved & Conical Washers
Spring washers in wave, curved or conical forms for light-to-moderate axial preload, tolerance compensation and contact maintenance in compact bolted or stacked assemblies.
Product Questions
Slotted & Contact Disc Springs FAQ
Can a slotted disc spring use the same load table as DIN 2093?
Not safely. Slots and contact features change stiffness and stress distribution, so the modified part needs its own load review.
When are contact flats useful?
They help when the assembly needs force introduced at defined areas rather than around the full disc edge.
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.