Our Torque Hinge HG-TB7

Sugatsune America’s torque hinge HG-TB7L is a compact, left-handed torque hinge engineered for lightweight components that require rotational movement through a full 360° opening angle and can stop and hold at any angle in that range. With a fixed torque rating of 6.1 lbs·in per piece and a lightweight 30 g body, the HG-TB7L is designed for smaller panels, displays, screens, covers, and equipment components where stable positioning and smooth manual adjustment are important.

The constant torque hinge HG-TB7L allows a mounted component to rotate fully while maintaining consistent resistance throughout its range of motion. This makes it suitable for applications where the component must stay at a selected viewing, access, or operating angle without swinging freely. Common examples include LCD monitor positioning, stationary camera mounts, compact display assemblies, control panels, and lightweight equipment covers.

Designed for indoor use, the HG-TB7L gives engineers, product designers, and fabricators a compact hardware solution for rotational positioning in precision assemblies. Its left-hand configuration also allows it to be paired or specified correctly in applications where hinge orientation is critical to the design.

Lightweight 360° Motion Control for Compact Components

The torque hinge HG-TB7L is built for applications where a small component must rotate completely while maintaining controlled positioning. Unlike hinges that are limited to 90° or 180°, the HG-TB series offers a full 360° opening angle, supporting applications that require flexible visibility, access, or user interaction.

In industrial equipment, the HG-TB7L may be used for small control interfaces, inspection panels, compact access covers, test equipment, camera supports, and lightweight machine components. Its constant-torque function helps the mounted part remain stable at different positions, improving usability during adjustment, inspection, or operation.

In architectural, commercial, and specialty fixture applications, the HG-TB7L may be used for display panels, built-in screens, point-of-sale equipment, museum or retail display components, and custom casework features where controlled rotation must be integrated into a compact assembly. Its small footprint allows designers to add positioning functions without bulky support hardware in suitable applications.

Left-Hand Configuration for Direction-Specific Assemblies

The HG-TB7L is the left-hand version of the HG-TB7 torque hinge. Handling is important when the application requires a specific hinge orientation, matched hardware placement, or symmetrical design using left- and right-hand components.

For applications requiring the opposite orientation, Sugatsune also offers the HG-TB7R right-hand model with the same 6.1 lbs·in torque rating and 30 g weight. Engineers should confirm the hinge orientation in the specification to ensure the correct operating direction, mounting layout, and panel movement.

This is especially important for equipment interfaces, dual-panel assemblies, paired display components, and enclosures where left- and right-hand hinges may need to work together or mirror one another.

Constant Torque for Stable Positioning

The constant torque hinge HG-TB7L provides fixed, non-adjustable torque. This means the hinge is manufactured to provide a consistent 6.1 lb ·in of resistance per piece, rather than allowing field adjustment after installation.

This fixed torque can help simplify specification when the panel weight, center of gravity, and operating requirements are known. It also helps create repeatable movement in applications where the component should hold position during routine use.

Because the torque is non-adjustable, the HG-TB7L should be selected only after evaluating the full assembly. If the component is too heavy, too large, or positioned too far from the hinge axis, a higher-torque model in the HG-TB series may be required. If the torque rating is too high for the component, the user experience may feel stiff or difficult to operate.

The easiest way to gauge whether your panel’s torque is within spec is to take ½ x the panel's weight (lbs) x the distance from the hinge side (in.), ensuring the lbs-in are under 6.1 lbs-in. Max torque per hinge (note: using an HG-TB7R and an HG-TB7L supports a panel up to 12.2 lb-in of torque).

Where the HG-TB7L Is Commonly Specified

The torque hinge HG-TB7L may be suitable for indoor applications such as:

• LCD monitor positioning
• Stationary camera mounts
• Compact display assemblies
• Control panels and operator interfaces
• Lightweight inspection covers
• Test equipment panels
• Small enclosure doors
• Pivoting screens
• Commercial display fixtures
• Retail or museum display components
• Specialty casework
• Lightweight equipment access panels

The HG-TB7L is best suited for smaller components that require full 360° rotation with light-holding resistance. Larger displays, heavier panels, or components with a greater offset from the hinge axis may require the HG-TB20, HG-TB30, or HG-TB45 models.

Compare the HG-TB Series of Torque Hinges

Sugatsune America’s HG-TB series includes multiple right- and left-hand constant-torque hinges with 360° opening angles. This allows engineers and specifiers to select the correct torque rating and hinge orientation for the application.

The HG-TB7L has the lowest torque rating in the series, making it appropriate for lighter components that need controlled 360° movement. The higher-torque HG-TB20, HG-TB30, and HG-TB45 models may be more appropriate when the mounted component requires stronger holding resistance.

Specifying the HG-TB7L for Your Application

Because the constant-torque hinge HG-TB7L provides fixed torque, selecting the correct product is essential. Engineers and designers should review the following before the specification:

• Component weight
• Component dimensions
• Center of gravity
• Hinge orientation and handling
• Number of hinges required
• Required 360° rotation
• Desired user operating force
• Mounting layout
• Whether the application is indoor only
• Whether the component must hold its position throughout the full rotation range
• Whether a higher-torque HG-TB model is required

Selecting the correct torque rating helps reduce the risk of hinge overload, insufficient holding force, or excessive operating resistance. For additional technical background, read Sugatsune’s guide to the ABCs of torque hinges. For assistance comparing torque hinge options or reviewing a specific application, contact Sugatsune America’s Inside Sales team to consult with a hardware expert.

FAQs

What is the difference between the HG-TA and HG-TB series of torque hinges?

The primary difference is the opening angle. The HG-TB series provides a full 360° opening angle, while the HG-TA series operates within a 0° to 180° opening range. Both series are designed for controlled movement, but the HG-TB series is better suited for applications where the mounted component must rotate fully.

How does the HG-TB7L compare to the other torque hinges in the HG-TB series?

The torque hinge HG-TB7L has the lowest torque rating in the HG-TB series, at 6.1 lb ·in per piece. This makes it suitable for lightweight components such as small display panels, LCD monitor mounts, stationary camera supports, compact access covers, and light equipment interfaces. Larger or heavier components may require the HG-TB20, HG-TB30, or HG-TB45 models.

Is the torque adjustable on the HG-TB7L hinge?

No. The HG-TB7L is a non-adjustable constant-torque hinge with a fixed torque rating of 6.1 lb ·in per piece. For applications that require greater holding resistance, Sugatsune offers additional HG-TB models with torque ratings of 17.7, 26.5, and 39.8 lb ·in per piece.

What does the “L” mean in HG-TB7L?

The “L” indicates that the HG-TB7L is the left-hand version of the HG-TB7 torque hinge. Sugatsune also offers the HG-TB7R as the right-hand version. Engineers should confirm the required handling before specification to ensure the hinge matches the application’s mounting direction and movement requirements.

When should the HG-TB7L be used?

The HG-TB7L should be used when a lightweight indoor component requires controlled 360° rotation and light-holding resistance. It is commonly suited for LCD monitors, stationary cameras, compact displays, operator interfaces, inspection covers, and small enclosure panels. The application should be reviewed for component weight, hinge position, and required torque before final selection.