Motor-driven spindle bearings

Our aim is to continue to increase sales of the series spindles listed below.
When possible, we also try to accommodate special designs for large and/or repeat orders.

Motor-driven grinding spindle

Technical data:

  • Rotational speed 0-7600 rpm
  • Pump pressure 63 bar
  • Oil type VG 2
  • Oil flow 10 l/min
  • Max. axial/radial grinding force 2000 N
  • Stiffness on grinding wheel > 320 N/µm
  • Motor power 50 kW
  • Friction power at max. rotational speed 1.2 kW
  • Clearance between axle and front edge of housing 105 mm
  • Prepared for automatic balancing systems

Hydrostatic motor-driven workpiece spindle

Technical data:

  • Rotational speed 0-6000 rpm
  • Pump pressure 50 bar
  • Oil type VG 2
  • Oil flow 6 l/min
  • Max. axial/radial grinding force 500 N
  • Stiffness on workpiece approx. 80 N/µm
  • Motor power 6.3 kW
  • Friction power at max. rotational speed 0.6 kW
  • Clearance between axle and front edge of housing 65 mm
  • Radial and axial running < 0.15 µm
  • Spindle passage 26 mm
  • Axle height 65 mm

Motor-driven lathe spindle

Technical data:

  • A8 spindle holder according to DIN 55021
  • Rotational speed 0-6000 rpm
  • Pump pressure 63 bar
  • Oil type VG 2
  • Oil flow up to 12 l/min
  • Max. axial/radial cutting force 10 kN
  • Bearing stiffness > 1000 N/µm
  • Friction power at max. rotational speed 1.3 kW
  • Radial and axial running < 0.3 µm
  • Axle height 165 mm
  • Spindle hole Ø 80 mm
  • Integrated clamping cylinder, acts on both sides
  • With indexing device 2.5

Milling spindles (both sides)

Technical data: 

  • Rotational speed 0-3000 rpm
  • Pump pressure 50 bar
  • Oil: VG 2.5
  • Max. flow 8 l/min
  • Max. axial/radial grinding force 600 N
  • Axial/radial bearing stiffness 1000/1000 N/µm
  • Motor power (S1) 15 kW
  • Torque at max. rotational speed (S1) 45 Nm
  • Friction power at max. rotational speed approx. 1.2 kW