A friction hinge is a positioning hinge that uses controlled frictional torque to enable smooth rotation while holding a lid, panel, or display at a desired angle—without additional locks or support mechanisms.
This guide explains what friction hinges are, how they work, key design considerations, common applications, and how to choose the right friction hinge for your product.
What Is a Friction Hinge?
A friction hinge is a hinge mechanism designed to generate resistive torque through internal friction, allowing an attached component to move smoothly and remain stable at specific angles.
Key Characteristics
- Controlled resistance throughout rotation
- Stable holding at any angle within the motion range
- No need for external stays, locks, or springs
How Friction Hinges Work
Friction hinges work by generating controlled torque through friction interfaces inside the hinge assembly. As the hinge rotates, internal components create resistance that counteracts gravity and external loads.
Internal Friction Components
- Friction washers, discs, or sliding surfaces
- Spring elements or preload mechanisms
- Material pairing and surface finishes
- Assembly compression and torque calibration
Key Design Considerations
Torque Requirements
Correct torque selection ensures the hinge can support the weight of the lid or panel while maintaining smooth motion and stable positioning.
Materials and Surface Finishes
Material choice and surface treatment affect durability, wear resistance, and long-term torque stability.
Package Size and Mounting Constraints
Designers must evaluate installation space, mounting orientation, and integration with surrounding structures.
Applications Across Industries
Friction hinges are widely used in products that require repeatable angle control and stable positioning.
Consumer Electronics
Laptops, monitors, tablets, and display panels requiring smooth adjustable positioning.
Automotive and Transportation
Console lids, display screens, storage compartments, and adjustable interior components.
Medical Equipment
Diagnostic equipment, monitor arms, and adjustable medical panels where stability and precision are critical.
How to Choose the Right Friction Hinge
Key selection steps include:
- Determine lid or panel weight and center of gravity
- Define required angle range and holding positions
- Specify torque values and symmetry requirements
- Confirm available installation space and mounting method
- Consider expected lifecycle and environmental exposure
Friction Hinge Product Categories
Common Types
- Constant torque friction hinges
- Adjustable torque hinges
- Detent friction hinges
- One-way friction hinges