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Friction Hinges

A reliable source for Friction Hinges information and leading Friction Hinges Companies & Manufacturers.

A friction hinge operates by establishing a predetermined tolerance between the mechanical parts. A special kind of hinge known as a frictional hinge features smooth motion and angle retention. It operates on the idea of torque, which may be produced by exerting a specific force. Read More…

Friction Hinges Friction hinges are tools used to allow for the controlled movement of doors, container lids, laptop screens and other movable, planar objects that are joined with other objects. Friction hinges are among the most complex of all hinge varieties because of their advanced nature and the wide variety of applications in which they are used.
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Leading Manufacturers

Alliance, OH  |  330-935-2445

We take our customer evaluations as our only measure of success. If our customers are not happy, we are not happy! We will work with you until we find the right hinges solution for you.

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Marlboro Manufacturing, Inc. $$$

Long Beach, CA  |  800-433-5554

Our company is the true hinges expert. We own over 50 patents for fasteners and we are completely ISO 9000 certified. Our products are made with the customer in mind, and we take your requests as requirements for service.

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Sierra Pacific Engineering & Products (SPEP) $$$

Bartlett, IL  |  800-989-6365

We are here to provide you with any hinge you could ever possibly need! We are the hinge specialists committed to bringing you a level of customer service that is unmatched by the competition.

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S & D Products, Inc. $$$

St. Louis, MO  |  314-436-0432

Hardware Mfg. supplies stock inventory parts in addition to creating custom components for OEM and resellers. We work with a number of different industries such as agriculture, drug tablet, livestock, truck equipment, conveyors, and more.

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Hardware Mfg. $$$

Fort Lauderdale, FL  |  800-684-4643

Jefco Mfg. has been a leader in the industry for over 40 years. With our experienced engineering and production team coupled with cutting edge technology, Jefco produces quality products for the Industrial, Marine, Aerospace, Defense, and Medical industries. We work closely with customers to meet/exceed their needs and design specs. Jefco has the ability to produce practically any design in any Mat. gauge, pin size, width, or length, in a variety of materials including Carbon fiber and Titanium.

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Jefco Manufacturing $$$

Bloomingdale, IL  |  800-332-1227

Since 1932, the S & S Hinge Company has been providing customers with the best-quality continuous hinges possible. We have accomplished this by implementing a Lean manufacturing strategy that allows our company to do more with less.

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S & S Hinge Company $$$
placeholder image Marlboro Manufacturing, Inc. Sierra Pacific Engineering & Products (SPEP) S & D Products, Inc. Hardware Mfg. Jefco Manufacturing S & S Hinge Company

A friction hinge operates by establishing a predetermined tolerance between the mechanical parts. A special kind of hinge known as a frictional hinge features smooth motion and angle retention. It operates on the idea of torque, which may be produced by exerting a specific force. Torque is a unit of measurement for the force needed to spin an object. Friction is created in these hinges by additional modifications like springs or lubricants.

Doors and windows have friction hinges on both sides, and force is exerted when they are opened or closed. These hinges are made to open or close partially and stay in a specific position for a specified time. Friction hinges can be tailored to a person's specific requirements. They can be customized as one-way hinges, which only have resistance on one side, or two-way hinges, which allow for damping on either side. The tailored designs can provide variables in viscosity, temperature tolerance, and resistance capabilities.

MA-685 Series Friction Hinge

Features of a Friction Hinge

  1. Torque Requirement

    The hinge must have the correct torque for the application to function.

  2. Box Size

    The hinge's effectiveness affects the package's size. A tiny container will provide the product's design with greater freedom.

  3. Life Requirement

    The number of times the hinge will open or close is based on how long the application is anticipated to last.

  4. Dynamic Torque

    Dynamic torque is the hinge's resistance as it rotates.

  5. Static Torque

    Monitoring the resistance needed to initiate the hinge rotation is crucial.

Additional features include the spring back feature, free play, aesthetic appeal, environmental conditions, and custom designs.

Types of Friction Hinges

Depending on how they are used, friction hinges can be classified into three primary categories:

  1. Friction Stay Hinge

    Variable friction stay hinges are used to open and close windows securely and safely. The three subtypes of friction stay hinges are the standard friction stay hinge, the restricted friction stay hinge, and the easy clean friction stay hinge.

    Friction Stay Hinge
  2. Side Hung Friction Hinge

    When a window is opened, side hung friction hinges are made to resemble a door opening.

  3. Top Hung Friction Hinges

    These hinges are used in windows with handles positioned at the bottom.

    Top Hung Friction Hinge

Materials used

Certain materials are employed in its construction depending on how the hinge will be utilized. The following are the areas of emphasis:

  1. Fabrication skills
  2. Physical characteristics
  3. Corrosion protection
  4. Mechanical toughness
  5. External components

Which material is ideal for the application depends on these variables: Stainless steel, aluminum material, stainless 316 steel, steel hinges, cold- and hot-rolled steel, galvanized steel, brass alloy, 18-8 stainless steel, titanium material, and copper material are typical materials used in the manufacturing of hinges.

Working of Friction Hinges

  • The precise tolerances between the mechanical parts are engineered to provide friction hinges for their desired function.
  • Extra material, such as springs and lubricant, is sometimes used to produce the necessary resistance level or dampen the hinge action.
  • Sometimes, the intention is for the thing on the hinge to close entirely and swiftly. Others employ torque to hold one or both of the items the hinges are attached to in a certain orientation, rather than only in the completely open or closed state.
  • They are made to move by force with a precise amount of torque greater than their rated torque when employed to keep one of the pivoting components in place.
SB 188 Series Friction Hinge

Applications of Friction Hinges

  • They are most often used in doors and windows because they allow the hinge much flexibility without compromising its strength.
  • Lateral forces can be resisted using frictional hinges. They could be very useful in loading docks and other locations where a doorway sees a steady flow of people.
  • Adjustable laptop displays, movable automobile sun visors, portable DVD player screens, and a variety of other hinged, planar objects would be worthless without them.
  • A laptop should not use continuous or simple butt hinges since they would cause the lid to slam shut unless they were supported in some way. Frictional hinges must thus be used.

Benefits of Friction Hinges

  • Because the exterior rubber strip does not need to be broken, the window's seal is improved.
  • The window's maximum opening angle can be controlled. A second arm must be attached to the hinge to adjust the opening angle.
  • When the friction hinge is opened, there is space to clean the window from within the room, removing the possibility of someone slipping out.
  • Friction hinges are more wind pressure-resistant than hinge hinges, which require wind bracing to maintain wind pressure resistance.
  • They are comparatively inexpensive and a less expensive option that does the same task.

Friction Hinges Informational Video

 

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