SwissChuck AG
OVEKA

OVEKA

Precision compensating chuck for demanding shaft-type workpieces

" OVEKA/KA – SwissChuck's highly precise compensation chuck."

The workpiece is generally ground between centers for centric cylindrical, orbital pin, or form grinding of complex shaft-type components. The challenge faced by the workholding device is to transfer the necessary torque, and thus the rotational movement to the workpiece, without deforming it by excessive lateral loads. SwissChuck's high-precision OVEKA/KA compensating chucks have been originally designed for the machining of crankshafts, a task for which they have amply proven themselves. Over the years, these chucks have undergone continuous improvements such that today, they are perfectly suited for grinding all shaft-type workpieces. Our compensating chucks are available in 2-, 3-, or 4-jaw versions.

[Translate to English:] OVEKA Präzisions-Ausgleichsfutter
Technical data

OVEKA - Quatron | hydraulic actuation


OVEKA - Quatron | hydraulic actuation
TypeNumber of JawsStroke per Jaw
radial [mm]
Clapming Force
max. [kN]
Weight
[kg]
Speed
[1/min]
Outer-ø
[mm]
Height
[mm]
2OVEKA 140                 2515101500140109
3OVEKA 1403330101500143109
2OVEKA 17025158162000170101
4OVEKA 1804250203000180118
4OVEKA 2064255271000206118
4OVEKA 2704255451000270118
4OVEKA 2704255461000270118

 

KA | actuation through a clamping cylinder


KA | actuation through a clamping cylinder
TypeNumber of JawsStroke per Jaw
radial [mm]
Clamping Force
max. [kN]
Actuating Force
max. [kN]
Weight
[kg]
Speed max.
[1/min]
Outer-ø
[mm]
Height
[mm]
2KA 14025158102500140109
3KA 140332020103000143109
2KA 17025158162000170101

 

Functions & Fields of Application

  • 2-, 3- and 4-jaw versions are available in varied sizes
  • Mostly intended for grinding machines
  • Special versions available for combined grinding and hard-turning operations

Advantages

  • With a patented circulating lubrication system (OVEKA)
  • Highly sensitive hydraulic compensation
  • Sealed chuck
  • Small design height
  • Very low maintenance
  • 10-year warranty
Effortless compensation of workpiece-related concentricity errors in the clamping area!

Effortless compensation of workpiece-related concentricity errors in the clamping area!

The clamping devices are designed so that the effective clamping force is only fully applied when all clamping jaws are in contact with the clamping point. The highly sensitive compensation easily compensates workpiece-related concentricity errors in the area of the clamping point. The compact design allows optimum utilization of the machine-side center-to-center distance. Thus, the OVEKA/KA compensation chucks form the ideal interface between the workpiece and machine spindle when grinding between centers.

With a patented circulating lubrication system

The hydraulically actuated chuck series OVEKA is equipped with the patented EP1 190 815 circulation lubrication. All internal chuck components are actively lubricated during each clamping process. With virtually maintenance-free chucks, this results in minimal lifecycle costs. Downtimes in production due to malfunctions of the clamping system are eliminated.

Anwendungsbeispiele

2OVEKA 140

With a gear shaft:
Clamping between centers

  • Grinding of the OD diameter
  • Typical between-center grinding operation
  • Highly accurate concentricity
[Translate to English:] 2OVEKA 140 mit Getriebewelle

3KA 140

Ball screw shaft:
Clamping of ball screw shafts between centers

  • Grinding of the ball screw track
  • Accurate and firm positioning of the shaft to the center point
  • Very short and thin-walled clamping location
     
[Translate to English:] 3KA 140 mit Kugelgewindewelle

2OVEKA 140

Clamping camshafts in the pitch circle of the gear profile:
Form grinding of the cam geometry

  • Angular pre-alignment with a special positioning mechanism
  • Precise angular clamping in the pitch circle
  • Top jaws with integrated tungsten carbide clamping pins
[Translate to English:] 2OVEKA 140 mit Zahnrad

3KA 140

Shaft part of CVT gearbox:
Clamping CVT shaft component

  • Grinding of cone and outer diameters
  • Stable and powerful clamping
  • High roundness, concentricity, and axial runout accuracies 
[Translate to English:] KA 140 mit Vraiogetriebe-Welle
OVEKAV

OVEKAV

Reactable compensating chucks

[Translate to English:] OVEKA Präzisions-Ausgleichsfutter

OVEKA

Precision compensating chuck for demanding shaft-type workpieces