Brake spring
Return extension springs for drum brakes and actuation mechanisms. Design and quote instantly.
Recommended type and material
Brake systems use return extension springs that pull the shoes back to rest. Stable initial tension ensures the brake fully releases on each actuation.
Reference specification
| Type | Extension |
|---|---|
| Material | Carbon steel |
| Wire diameter | 2 mm |
| Outer diameter | 16 mm |
| Length | 80 mm |
| Spring rate | 4.13 N/mm |
| Max safe load | 142 N |
| Spring index | 7 |
Values calculated for the reference example; adjust everything in the designer.
Things to consider
- Reliable shoe return after braking.
- Stable initial tension for full release.
- Faithful replacement by measuring the original.
Design your spring for this application
Open the example in the designer, adjust the dimensions and get an instant quote.
Design & quoteFrequently asked questions
Does it work as a drum-brake return spring?
Yes — size the return force and length to match the original mechanism.
Can I reproduce the original spring?
Yes — measure wire, diameter, hook-to-hook length and coils and reproduce it in the designer.