Everything You Need to Know About Friction Hinge

Torque hinges, also known as friction and constant torque, resist pivoting motion to keep a door, lid or panel in place at any desired angle. This versatile hinge type can also be found in display devices; product covers or flaps, and access panels on tools or equipment.

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Pipe Friction

When liquid is flowing through pipes, it carries precious energy with it. Whenever the fluid encounters resistance, that energy is diverted away from its path and wasted. It is what causes friction loss in piping systems. The smoother the pipe wall, the lower the friction loss. The fluid molecules do not have to overcome as much pressure to resist displacement.

On the other hand, a rougher pipe wall has to overcome a higher force of resistance. Friction hinges are designed to prevent this problem by providing a mechanism that generates friction to control the pivoting motion of a hinge. Several names, including free stop, position control, and torque hinges, know these. Each type has a unique function that meets the needs of different applications.


Friction hinges can provide various amounts of torque and are available in many shapes and sizes. They are commonly used indoors for laptop computers, storage cabinets and machine covers. Their function is to prevent too quick or accidental opening and closing of door elements. Several types of friction hinges are available, including one-way torque. These offer constant torque in one direction, allowing the element to move only a small amount in the other. They are also useful for products that should only open at a certain angle and stay in position. Hinge manufacturers offer a variety of styles and materials, including stainless steel. The selection of a material depends on the application and environment. For example, corrosion resistance and strength are important in acidic environments. Other factors include hardness, elasticity, rust resistance and appearance. In addition, some hinges require a spring mechanism to keep the element in place. These are known as detent friction hinges.


A hinge’s torque is an important factor that affects its function. It measures the force used to rotate or move the hinge and can vary depending on several things, including the hinge’s size, weight, and environment. It may also be affected by environmental conditions like temperature or humidity. When selecting a friction hinge, it’s important to consider the amount of torque exerted on it. A friction hinge’s resistive torque should be stronger than the force exerted to ensure the hinge doesn’t fail prematurely.

Some versatile torque positioning hinge has an adjustment screw for changing the resistance level and allows you to position lids, flaps, doors, and panels at any angle. It’s suitable for various applications, such as storage cabinets, jewelry boxes, tool boxes and display cases. The acetal polymer construction and zinc-plated screw make this hinge lightweight and strong.

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The material is very important in a friction hinge, affecting function and durability. There are many types of metals, each with advantages and disadvantages. Stainless steel, for example, is strong, durable, resists corrosion changes in temperature, and can be easily welded. It also has a high melting point and is relatively resistant to stress fatigue.

Another factor that influences the function of a friction hinge is the type of friction used. There are three types: curl, disc, and pipe friction. A curl friction hinge uses spring steel to create friction between the hinge parts. It is a good option for applications with constant movement and no need to support heavy loads. A damping hinge, on the other hand, uses a viscous fluid to slow down the rotary motion. These are ideal for a door, lid, or window that needs to be opened slowly.


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