The Magnetic System Maintains Semipermanent Torque Stability
As the operation of copy machines and printers becomes increasingly fast, torque limiters must provide greater stability and durability. A double-feed prevention mechanism ensures stable torque transmission regardless of the environmental conditions (heat and humidity) and speed of revolution, and provide the reliability needed to maintain this stability over the long term. These products also provide high torque response and uniform, stable torque transmission to prevent image-blurring by copy machines and printers, and a stable transport mechanism for banknote processing systems. Backed by high-quality materials and unique know-how, Yamauchi offers high-quality hysteresis (magnetic) torque limiters that meet these needs.

What Makes Our Hysteresis Torque Limiter Special?
Compactness Achieved by Using Powerful Neodymium Magnets
Yamauchi uses a magnetic (noncontact) hysteresis system that places no burden on the torque generating mechanism and offers superior response compared to the conventional friction system. A powerful neodymium magnet is also used. Compared with torque limiters that use weak ferrite magnets, this powerful magnet enables considerable downsizing.
Technology
Reliability Test Data
The graph #1 shows the results of a durability test for when the torque limiter was used consecutively for a long period of time. As you can see, there is practically no change in torque even after being used for approximately 1,000 hours.

Graph #1
Environmental Test Data
The graph #2 shows the results of the change in torque based on changes in temperature. As you can see, there is practically no performance degradation even under severe changes in temperature ranging from -20°C to 80°C.

Graph #2