The type RDBK is a centrifugally lift-off sprag RSCI high speed backstop equipped with integral torque limiter. The latter limits the backstop transmissible torque to a value that is factory set-up according to customer request.

This design will be used mostly as backstop in multidrive systems, such as on large inclined conveyors, where two or more backstops share the reverse load.

The torque limiting function is performed through a multi-disc brake working in oil. This solution provides not only for a high torque density of the complete unit, but also insures that the set slip torque remains constant over the working life time regardless of the environmental conditions.

Parameter Name	Parameter Value
Type	multiple-disc
Operation	hydraulic
Torque (Nm)	0 - 0 500 - 500
Rotational speed (rpm)	130 - 6000