Special HYPROSTATIK® hydrostatic bearing system

Cam grinding spindle

Technical data

  • Rotational speed 0-25000/35000 rpm
  • Pump pressure 63 bar
  • Oil type VG 2
  • Oil flow 10 l/min
  • Max. axial/radial grinding force 750/500 N
  • Radial stiffness on grinding wheel 120/60 N/µm
  • Grinding power 9/6 kW
  • Friction power at max. rotational speed 0.9/0.6 kW
  • Clearance between axle and front edge of housing 24/16 mm
  • For CBN discs approx. Ø 70 / Ø 50

High-frequency spindles

Technical data: 

  • Spindle holder HSK40E
  • Rotational speed 0-42000 rpm
  • Pump pressure 80 bar
  • Fluid: Emulsion or demineralised water
  • Max. flow 10 l/min
  • Max. axial/radial cutting force 500 N
  • Bearing stiffness 200/160 N/µm
  • Motor power (S1) 15 kW
  • Torque at max. rotational speed (S1) 3.5 Nm
  • Torque at 500 rpm 4 Nm
  • Friction power at max. rotational speed approx. 4 kW
  • Automatic clamping of tool holding fixture

Quill bearings

Technical data: 

  • Pump pressure 32 bar
  • Max. flow 0.24 l/min
  • Max. radial force 2000 N
  • Axial/radial bearing stiffness 500 N/µm
  •  

Rotary table bearings

Technical data: 

  • Rotational speed 0-300 rpm
  • Pump pressure 40 bar
  • Oil: VG 32
  • Max. flow 8 l/min
  • Max. axial/radial force 500 N
  • Max. overturning torque 50 Nm
  • Friction power at max. rotational speed approx. 8 W
  • Radial and axial running < 0.2 µm

Tailstocks

Technical data:  

  • Constant radial running < 0.2 µm
  • Maximum rotational speed 0-1000 rpm
  • Intended radial load on the centre 2000 N
  • Intended axial load 0-2650 N
  • Radial stiffness of the front bearing 500 N/µm
  • Range of usable oils depending on type VG2 – VG68
  • Maximum bearing oil flow with VG32 oil 1.9 l/min
  • Pump pressure 50 bar
  • Friction power at 1000 rpm approx. 180 W
  • Friction torque at 1000 rpm approx. 1.72 Nm

Tailstock for ultra-precision machine

Technical data:  

  • Rotational speed 0-3000 rpm
  • Centre height 90 mm
  • Bearing force axial 5000 N – radial 3200 N
  • Bearing stiffness radial >800 N/µm – axial >1000 N/µm
  • Pump pressure 63 bar
  • Oil viscosity VG2 – flow 5 l/min
  • Friction power max. 0.5 kW
  • Radial running <0.15 µm
  • Axial running < 0.15 µm
  • Rated power 7.5 kW
  • Rated torque 50 Nm

 

 

Hydrostatic swivel pocket

Technical data:  

  • Max. force per pocket 50 kN
  • Max. speed 20 m/min
  • Recommended oil grade VG68
  • Maximum oil flow approx. 0.4 l/min
  • Pump pressure 100 bar

Hydrostatic swivel pocket

Technical data:  

  • Swivel pocket Ø250 mm
  • for max. 920 m/min
  • Bearing Ø2000-7000 mm
  • Axial force max.290 kN
  • Swivel angle 0.4°
  • Axial stiffness 1-17 kN/µm
  • Friction at n max. 100 N
  • Pump pressure 100 bar
  • Flow max. 5.8 l/min (VG15)
  • Flow max. 11.5 l/min (VG7)
  • Friction/cooling capacity for the table (VG15) with 10 pieces 9/19 kW
  • Friction/cooling capacity for the table (VG7) with 10 pieces 12/24 kW