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 →Torsion Springs
Custom Micro Torsion Springs
Small torsion springs defined by coil clearance, precise leg locations and torque at installed angular positions.
- Specification
- Drawing and working requirement
- Dimensions
- Confirmed for the assembly
- Performance
- Specified at working positions
- Quotation
- Submit dimensions and quantity
About Custom Micro Torsion Springs
Micro torsion springs provide rotational spring action in small assemblies. Define actual dimensions instead of relying on the word micro or an unscaled image. The mounting shaft, leg contacts and angular references are particularly important to a clear specification. State torque at installed positions, direction of movement and the available axial space so both fit and spring action can be reviewed.
Key Design Characteristics
- Dimension leg contacts and bends from a common reference.
- Check shaft clearance and body space through the working movement.
- Describe the torque-test fixture and the handling of small loose parts.
Choosing Between Related Designs
Choose a micro compression spring when the required action is axial. For rotational action, specify single or paired torsion geometry independently of size; a small body does not establish the number of working elements.
Specification and Inspection Review
Agree the angular datum, leg-loading points and torque measurement method before setting tolerances. Identify any handling or packaging requirement needed to protect small legs and maintain assembly orientation.
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 |
|---|---|
| Small coil geometry | Wire size, coil inside diameter, outside diameter and width. |
| Leg detail | Leg lengths, bends, free angle and contact locations. |
| Mounting space | Shaft size, axial clearance and surrounding envelope. |
| Torque-angle targets | Torque at stated installed angles and movement direction. |
| Handling and duty | Material, cycle range, cleanliness and packaging needs. |
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 small-section spring wire, surface condition and the service environment against the defined torque and movement.
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.
Related Spring Design Guides
Review the design and measurement requirements for this spring family.
Compare Designs
Related Spring Products
Use these alternatives when the available space, connection style, travel or force direction changes.
Compression Springs
Micro Compression Springs
Small compression springs for restricted installation spaces, specified by actual dimensions and loads at working heights.
Torsion Springs
Double Torsion Springs
Custom Double Torsion Springs manufactured to your drawing, dimensions, load or torque, material, working environment and production requirements.
Torsion Springs
Double-Leg Torsion Springs
A torsion spring with two working arms used to share rotary load across a wider mechanism or provide balanced return around a common pivot.
Product Questions
Micro Torsion Springs FAQ
Can torque be specified as a force only?
Give either torque directly or force together with its contact-arm distance and angular position. A force without that geometry is incomplete.
Can the minimum producible size be read from the image?
No. An unscaled image shows form only. Actual wire, coil and leg dimensions need to be supplied for feasibility review.
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.