SMD-18 clutch disc (soft), Kharkiv region.

Driven disc DT-75 soft (DV A-41)
The design feature of these discs is an increase in the bearing surface.
contact of the springs with the limiting disc. The specific pressure of the supporting turns of the springs has been reduced.
on the disk details.

Operation of these discs is provided by:(//tractor-service.com)

― increase in motor resource of the disk by 2 times without taking into account the change of friction linings;
― protection of the surfaces of the flywheel and pressure disc from being damaged in the event of a spring failure, что
is different from the design with open springs

catalog number А 52.21.000-70