What are Single-Coil Torsion Springs?
Single-coil torsion springs store energy through the twisting of a wire. Their design allows them to generate and release torque in a controlled manner. These springs are both space-efficient and highly effective, making them essential in a wide range of applications.
Coil Direction: Right-Hand or Left-Hand Wound
Single-coil torsion springs can be either right-hand or left-hand wound, depending on the direction in which the torque needs to be applied:
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Right-Hand Wound: Designed to be loaded when rotated clockwise.
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Left-Hand Wound: Designed to be loaded when rotated counterclockwise.
The choice of winding direction depends on the specific application and should be carefully considered during the design process.
Leg Positions: Flexibility in Design
A single-coil torsion spring can have different leg orientations to meet the specific requirements of the application. The most common leg positions include:
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90 Degrees: The legs are positioned at a right angle to each other.
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180 Degrees: The legs are oriented in opposite directions.
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270 Degrees: The legs are offset by 270 degrees.
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360 Degrees: Both legs are aligned in the same direction.
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These variations allow the torsion spring to be optimally adapted to the available installation space and the intended function.
Advantages of Single-Coil Torsion springs
- Space-saving: Ideal for applications with limited installation space.
- Easy to manufacture: Lower production costs compared to more complex spring types.
- Versatile: Suitable for a wide range of torque requirements.
Typical Applications
Single-coil torsion springs are used in a variety of fields:
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Hinges: Such as in flaps, lids, or cabinet doors.
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Mechanical return mechanisms: For example, in tools or electronic devices.
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Control elements: Such as levers or mechanical switches.
Installation Guidelines for Torsion Springs
- Our torsion springs are designed to absorb and release forces through twisting.
- The specified torque values are intended for standard applications and static loads.
- For dynamic loads, a significantly longer service life can be achieved by reducing the applied torque by approximately 40%.
- Torsion springs are typically mounted on a mandrel (shaft).
- The specified M/S diameter in our product table allows for 10% clearance between the wound spring and the shaft.
- For higher torsional stress, the mandrel diameter should be reduced accordingly.
- Axial play must also be considered during installation to ensure proper function.
- Use the spring in the direction of the winding.
- Using the spring against the winding direction bends it along the stretched fiber, which significantly shortens the service life.
What Should the Shaft Diameter Be for Torsion Springs?
- The shaft diameter must be selected so that even at the maximum deflection angle, there is still clearance between the inner diameter of the spring and the shaft.
- The M/S dimension (as listed in our product table) indicates the maximum shaft diameter that still allows clearance when the torsion spring reaches the specified deflection angle.