High torque loads can damage motors, strip gears, and shorten drive system life.
Reell torque limiting devices and overload protection act as a mechanical fuse, limiting transmitted torque at a defined threshold. When torque exceeds the threshold, the system slips to isolate the drive. When the load drops, it automatically re-engages. Reell overload solutions require no reset, no maintenance, and no replacement components.
Engineers use this approach to protect motors and gear trains without over designing for worst-case abuse loads, enabling smaller, lighter, and more efficient systems.
Torque spikes occur in real systems—often unpredictably. Reell solutions protect drive systems in conditions where a motor and drivetrain continue to apply torque, but the system cannot move, such as:
Obstructions during the opening or closing of an automotive tailgate
Ice, snow, or other environmental conditions unpredictably increase the load
User pushes/pulls against the motor operation, trying to stop the movement
Movement reaches a hard stop, but the motor continues briefly due to a system tolerance issue or damage
Reell’s torque protection and torque limiting solutions are engineered to meet your application needs, prevent damage to gear and motor systems, and provide a better experience for your end user.
For decades, Reell has delivered precision and reliability at scale, trusted by leading manufacturers to perform in demanding applications. Our overload protection solutions and slip devices offer:
Limits transmitted torque to a defined threshold
Slips only during overload events
Automatically re-engages when torque returns to normal load
Supports bidirectional operation
Enables application-specific torque levels and integration
Unlike shear pins or sacrificial components, Reell solutions do not require replacement after an event. Unlike traditional slip clutches, they are optimized for infrequent overload protection, not continuous slip.
Reell overload protection and torque limiting solutions protect motor-driven systems across industries where overload events can damage components or reduce system life. Some of our most common applications include:
Power automotive liftgates, tailgates, doors, and hatches
Motor-driven adjustable arms
Powered medical equipment and positioning systems
Adjustable furniture that uses actuators
Industrial robotics and automation drive systems
Powered lid and access panel systems
Common causes include obstruction during motion, ice or environmental binding, user-applied forces against the system, or reaching mechanical stops. In each case, the motor continues to apply torque to the system while motion is restricted, creating a spike that can damage gears and motors without this critical protection.
Torque limiting prevents excessive load from transferring into a drivetrain. By capping transmitted torque to a predefined limit, it protects motors from stall conditions, prevents gear tooth damage, and reduces stress on linkages and mounts. This allows engineers to design for normal operating conditions instead of worst-case and hard-to-define abuse loads.
Yes. Reell creates custom overload solutions configured to match the specific application requirements, including the load conditions, design and integration geometry, and desired safety factors. Defining the precise protection point allows design engineers to balance normal system performance with component protection.
A mechanical fuse is a torque-limiting element that protects a drive system by preventing torque from exceeding a defined threshold. When torque rises above that level, the mechanism slips to isolate the load and protect motors, gears, and linkages. Unlike sacrificial components such as shear pins, it automatically resets once the overload condition clears.
Reell is the trusted global partner for friction hinges, torque inserts, springs, clutches, and custom motion systems. Our components deliver premium movement and long service life across industries.
