When the torque setting is exceeded, sliding takes place between the sprocket wheel, pulley, etc. and the friction discs.

The helical spring-based structure is highly sensitive in terms of adjustment, enabling it to withstand wear with no notable change in the torque setting.

The torque limiter can be employed in other applications to ensure a constant load (seal bearings) or in simple spooling wheel pins, as long as the heat generated has been determined. Low-speed mechanisms are often suitable for this type of economic solution.

Structure 1 is recommended for transmitting movement between parallel shafts. Structure 2 includes a flexible coupling and makes it possible to join aligned shafts with minor misalignments. The nature of the nylon rim increases its sensitivity to heat. Possible use as a sliding device is often more limited.

In separate machines or in cases in which continuous sliding may not be detected by the operator, the installation of an external speed indicator that activates an alarm or directly affects mechanization is recommended.

Other types of torque limiters are described in technical sheets number 4302 and number 4303.