Material: Special spring-steel.
Delivery per piece.
At all sizes of FA and RNR, the specified torque can be doubled by the addition of a (second) disc spring.
At sizes from 01 to 5, the specified torque can be tripled by the addition of a (third) disc spring.
The minimum torque setting is then approx. 65% of the maximum value.

services: catalog operating manual

found in parts groups: