EMB DS-ring characteristics and effects
The EMB DS ring is the result of a consequent development of the well-known EMB cutting ring and is distinguished by the following characteristies.
Because of the constructive design of the cutting geometry, the edges do not cut simultaneously, but one after the other, although the cutting diameters are exactly the same. Thereby an improved cutting effect is achieved as well as much greater steadiness during excision at the end of the installation with only slightly more effort 1.
The DS ring has a limited surface that signals the end of the installation owing to its location
within the body cone. And thereby a force increase is perceptible 2.
As both cuttings, as well as the central section, have a supporting effect within the cone, the force is widely diffused there and thereby ensures a secure holding function 3.
A rising strength is imparted to the whole length of the ring and flows over the ring on to the body cone and the cone of the nut. This effect arises from the conical design of the inside end 4.
The conical surface opposite the cutting edges is highly finished, thereby reducing the loss by
friction during the installation and resulting in a stronger grip. Besides higher stability, the reinforced end of the DS ring reduces friction and takes the pressure off the base of the nut.
The required reduction of the cross-section optimizes the radial stability and thereby keeps the tube secure5. The stop area clearly limits overwinding by the bearing at the stud’s front