Brudkner Live Centers - F, FE And BOKO Maxima Series

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BRUCKNER LIVE CENTERS
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

Technical Features:

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

Type FE

with compensation for expansion rotating body with 1:7.5 internal taper for interchangeable inserts

Technical Features:

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

BOKO System Type MAXIMA 4000

Technical Features:

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

BOKO System Type MAXIMA 4030

Technical Features:

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