PLATES CLUTCHES STROMAG EZE

Description

For dry- and wet-running clutches and brakes, Our company is able to provide a very comprehensive range of plates. The plates and the friction surface are important functional elements in every clutch and brake, and have been developed in many different ways since the early days of clutches and brakes. The choice of friction system depends on the application: in general, one plate with friction material works together with a counterplate of steel or cast iron. The inner and outer plates are mounted with the other drive components by lugs and slots, and the spline is in accordance with DIN 867 and DIN 5480 as well as other standards. In addition, holes in the plate for studs and special shapes in accordance with customer requirements are available.

Combined with a multi-plate clutch or brake, these plates come in a multitude of different dimensions, friction combinations, and surface patterns.

 

In the case of a dry-running application, it is primarily the level of wear, coefficient of friction, and noise that are influenced by the surface. Normally, a pair of plates consisting of “organic” friction lining on one plate and a counterplate of steel or special cast iron on the other are used. Sintered, metallic friction linings are also used for particular applications.

In the case of a wet-running application however, the grooving of the friction surface is critical for directing the cooling oil accurately. Many different surface patterns are available, especially in the case of sintered plates, for a variety of applications. These include, for example, spiral grooves, radial grooves or a combination of the two, honeycomb and sunburst patterns, and various other different forms of oil channels. Paper linings are also used.

 

 

 

 

 



Dry-running plates

Dry-running plates

 

Generally dry-running clutches and brakes use a pair of plates consisting of “organic” friction lining on one plate and a counterplate of steel or special cast iron. Although this friction combination is subject to wear, it has become a standard due to its hard wearing capabilities. Sintered, metallic friction linings are also used for particular applications. The friction linings described here are riveted or bonded to the plates in the form of rings or segments or are applied by a sintering process.

 

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Wet-running plates

Wet-running plates

 

When considering “wet-running” plates, it is necessary to consider the lubricating and cooling oil, since this plays a decisive roll in the frictional process. In wet-running clutches and brakes the “classical” friction combination of steel/steel is today being replaced more and more by steel/sintered coating. The standard qualities of sintered coating are able to cover a wide range of conditions which are placed on high performance friction linings. In addition, the sinter is capable of being varied in terms of composition porosity and compatibility with oil enabling it to fulfill a wide range of special tasks. Of special interest within the range of wet- running plates is the friction combination steel/paper lining. This is being used to an ever greater extent in transmission systems in general mechanical engineering and in the motor vehicle industry. This is due to its extraordinary frictional behaviour and its almost total freedom from wear.

 

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Wet-running sinter-lining plates

Wet-running sinter-lining plates

 

  • High thermal load
  • Broad power spectrum due to high allowable surface pressures
  • None to little wear
  • Hardened steel counterplate, typical with sinus corrugation
  • Good oil distribution via wafer or sunburst keyway
  • Applications:
    – Press technology
    – Marine main drives
    – Brakes with high thermal loads
    – Gearbox with high thermal loads

 

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Dry-running sinter-lining plates

Dry-running sinter-lining plates

 

  • Medium thermal loads
  • High surface pressures
  • Low wear rates
  • Hardened counterplate, flat steel plates
  • Radial keyways for removal of abraded material
  • Applications:
    – Brakes
    – Clutches
    – Slip clutches

 

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Wet-running paper plates

Wet-running paper plates

 

  • Moderate to high thermal load
  • Low surface pressures
  • Low to moderate wear properties
  • Constant friction value via speed, good controllability
  • Steel counterplate with sinus (hardened and unhardened)
  • Good comfort behavior
  • Oil distribution via group parallel or wafer keyway
  • Applications:
    – Winding
    – Unwinding jig with continuous slip operations
    – Controlled overload clutches

 

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Dry-running organic-lining plates

Dry-running organic-lining plates

 

  • Moderate thermal load capacity
  • High friction values
  • Moderate to high wear
  • Steel or cast iron counter friction surfaces
  • Applications:
    – Brakes
    – E clutches
    – Pneumatic combined c/b
    – Overload clutch

 

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Steel plates

Steel plates

 

  • Version with sinus or flat
  • In hardened or unhardened version
  • Coating possible (e.g. molybdenum)
  • Surface areas are furnished with specific structures

 

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Plates with splines

Plates with splines

 

  • High torque transmissibility
  • Self-centering
  • Low plate strength possible
  • Use in limited installation spaces

 

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Plates with lugs

Plates with lugs

 

  • Counter profiles can be easily produced
  • Applications with small to medium torques
  • Applications:
    – Small clutches and brakes
    – E clutches/brakes

 

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Plates with radial slots

Plates with radial slots

 

  • Counter profiles can be easily produced
  • Applications with small to medium torques
  • Applications:
    – Small clutches and brakes
    – E clutches/brakes

 

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Plates with rounded lugs

Plates with rounded lugs

 

  • Counter profiles can be easily produced
  • Centering effect possible
  • Applications:
    – Small clutches and brakes
    – E clutches/brakes

 

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