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F, FE AND BOKO MAXIMA SERIES

  Types F, FE, and BOKO Maxima Series

Common Technical Features:
  • Housing - Drop-forged (tensile strength of the high-quality material used:  approx. 1,000 N/mm2
  • Taper Shank without Bore - Therefore it is not weakened.  Thus high moments of deflection can be obtained without any permanent bend to the large taper diameter.
  • High Concentricity accuracy - Guaranteed by the test report.
  • Large-dimensioned precision roller bearings, free from clearance - for taking up the radial and axial forces.  No bearings in the taper shank.
  • Seal Ring - Protects the bearings from dirt and coolant.
     
Type F
  • with compensation for expansion centerpoint 60
     
Technical Features:
  • Concentricity Runout
    - Type F  max.  0.007 mm (.0003")
  • See below for Technical Data and Dimensions

 

Applications:  
  • Whenever expansion caused by cutting-generated heat occurs when machining long or slim shafts, the expansion is compensated for by the spring system travel.  Thus an overload on machine and/or workpiece and a deflection of the workpiece is avoided.

 

Technical Data:
Type F
ID No. 5602 5603
Max workpiece weight daN 210 320
Max RPM 5000 5000
Initial pressure RPM 0 0
Final pressure RPM 240 240
Max travel of spring system (mm) 2.3 2.3

Dimensions (mm) Type F
ID No. 5602 5603
Morse Taper 2 3
d 20 20
D 45 45
IA 25 25
IB 57 57
IC 88 89

 

Type FE
  • with compensation for expansion rotating body with 1:7.5 internal taper for interchangeable inserts
     
Technical Features:
  • Concentricity Runout
    - Type FE  max.  0.007 mm (.0003")
  • See below for Technical Data and Dimensions
Applications:  
  • Whenever expansion caused by cutting-generated heat occurs when machining long or slim shafts, the expansion is compensated for by the spring system travel.  Thus an overload on machine and/or workpiece and a deflection of the workpiece is avoided.

 

Technical Data:
Type FE
ID No. 5682 5683
Max workpiece weight daN Based on interchangeable inserts
Max RPM 5000 5000
Initial Pressure daN 0 0
Final Pressure daN 240 240
Max travel of spring system (mm) 2.3 2.3

Dimensions (mm) Type FE
ID No. 5682 5683
Morse Taper 2 3
d 20 20
D 45 45
d1 11.20 11.20
IA 14 14
IB 57 57
IC 77 78

 

BOKO System Type MAXIMA 4000
  • with expansion compensation and pressure indicator
  • centerpoint 60
     
Technical Features:
  • Concentricity Runout
    Type Maxima 4000 - max.  0.007mm (.0003")
  • Reliable, time-tested design with spring-loaded bearings
  • Hardened housing
  • Centerpoint of wear-resistant alloy tool steel
  • The pressure indicator is insensitive to dirt, coolant and shock
  • Sealed by sealing ring
  • Maintenance free due to permanent lubrication
Applications:
  • When the axial pressure must not exceed or fall below a defined value in order to clamp the component safely or to avoid workpiece deformaton:
  • Examples:
    - For machining workpieces expanding due to cutting-generated heat or for long, slim components which deflect with excessive axial pressure
    - As a counter center for face-drivers, so the machine operator can adjust and control the pressure necessary to assure penetration of the driving teeth into the component.
Technical Data:
Type MAXIMA 4000
ID No. 4.003 4.004 4.005 4.006
Max workpiece weight daN 400 800 1800 3500
Max RPM 4000 3200 2500 2000
Initial pressure daN 130 300 350 500
Final pressure daN 850 1100 1750 4200
Max travel of spring system (mm) 2 3 3.7 4

Dimensions (mm) Type 4000

ID No. 4.003 4.004 4.005 4.006
Morse Taper 3 4 5 6
d 24 30 35 45
D 60 70 85 118
IA 31 40 47 60
IB 63 72 83 126
IC 101 121 141 197

 

BOKO System Type MAXIMA 4030
  • with expansion compensation and pressure indicator
  • centerpoint 60/30
     
Technical Features:
  • Concentricity Runout
    Type Maxima 4000 - max.  0.007mm (.0003")
  • Reliable, time-tested design with spring-loaded bearings
  • Hardened housing
  • Centerpoint of wear-resistant alloy tool steel
  • The pressure indicator is insensitive to dirt, coolant and shock
  • Sealed by sealing ring
  • Maintenance free due to permanent lubrication
Applications:
  • When the axial pressure must not exceed or fall below a defined value in order to clamp the component safely or to avoid workpiece deformaton:
  • Examples:
    - For machining workpieces expanding due to cutting-generated heat or for long, slim components which deflect with excessive axial pressure
    - As a counter center for face-drivers, so the machine operator can adjust and control the pressure necessary to assure penetration of the driving teeth into the component.
Technical Data:
Type MAXIMA 4030
ID No. 4.033 4.034 4.035 4.036
Max workpiece weight daN 200 400 800 1600
Max RPM 4000 3200 2500 2000
Initial pressure daN 130 300 350 500
Final pressure daN 850 1100 1750 4200
Max travel of spring system (mm) 2 3 3.7 4

Dimensions (mm) Type 4030

ID No. 4.033 4.034 4.035 4.036
Morse Taper 3 4 5 6
d 24 30 35 45
dA 8 10 12 18
D 60 70 85 118
IA 42 52 61 76
IB 63 72 83 126
IC 112 133 155 213

 

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