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mayr0512Corrosion-proof safety clutches for protection against overload damage have proven themselves in numerous applications in which moisture and dirt are part of everyday environmental conditions. In the event of breakdowns and collisions, they limit the torque in the drive train to a defined value, thus avoiding damage, downtimes and repairs. Mayr Antriebstechnik has Series "EAS-HTL"extended by a size with a torque of 2400 Nm.

The housing couplings of the EAS-HTL series can also be retrofitted into existing constructions and systems. The dimensions of the housing flanges and shafts comply with the IEC / B5 and Nema standards. The extremely short overall length of the coupling facilitates integration into existing drives. In addition, the high rigidity of the solid steel housing allows the attachment of suspended loads. The housing seal prevents the penetration of dirt and moisture as well as the washing out of lubricants from the built-in EAS-NC respectively EAS-compact safety coupling.

These safety couplings transmit the torque smoothly over the entire service life in trouble-free operation and are therefore also suitable for demanding and dynamic drive concepts. They are set in the factory to the desired limit torque. If this torque is exceeded due to overload or collision, the clutches will lock and disconnect the input and output within a few milliseconds. An integrated limit switch detects the disengaging movement and outputs a signal that can be used, for example, to switch off the drive. The release time depends on the stiffness of the axle and the hardness and speed of the collision.

When disengaging disc springs with a negative characteristic ensure that the torque drops immediately and not only after a significant torque increase, which must be taken into account in many other lock body couplings. The re-engagement behavior after an overload case varies depending on the type of safety clutch incorporated in the EAS-HTL.

Snap-on clutches snap back into position independently and are immediately ready for use again. Synchronous clutches behave similarly, but with the peculiarity that they can only engage in a precisely defined position on the input and output sides. On the other hand, disconnect couplings remain disengaged until they are re-engaged manually or via devices. The stored energy of the rotating masses can leak so freely. The unlocking design is preferably used at high mass moments of inertia and high speeds.


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