Belleville springs produce the contact force on the friction linings.
Because of the Belleville spring torque limiters’ steep characteristic of
the contact force the spring preload needs to be readjusted when the
friction linings become worn. Belleville spring Torque Limiters are
therefore preferred in applications where slipping periods are short and
infrequent
Function
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When the preset limit torque has been reached the built-in component (e.g. chain wheel) slips.
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During the slipping process, input and output rotate relative to each other and the preset limit torque continues to be transmitted.
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Inherent in the slipping process is a high energy consumption.
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Re-engagement is not necessary.
