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BRUCKNER DEAD CENTERS
GE, GR,GV, AND GZ FORMS

Forms GE, GR, GV and GZ

Common Technical Features:
  • Roundness of Carbide:  Out-of-roundness - 0<0.001 (.00003")
  • Taper Shank of Tolerance:  The deviation of taper 'Z' is < AT4 (guage accuracy)
  • Out of Roundness:  Very narrow eccentricity 'V' of the 60° point to the taper shank
  • Hardened Taper Shank:  The taper shank is case-hardened for protection from damage
  • Carbide:  We use only top quality carbide to achieve maximum safety
  • Regrinding Line:  On the useful end of the carbide a usable limit is marked by a brazen line

     

Form GE
  • With thread for draw-off nut full center, 60°
  • Length to DIN and extended
Technical Data:
Form Morse Taper ID No. D (mm) d2 lC L G

GE

 2 2852 7 18 48 112 M22x1.5
3 2853 11 24.1 57 138 M27x1.5
3 2853.18 18 24.1 57 138 M27x1.5
4 2854 14 31.6 72.5 175 M36x1.5
4 2854.18 18 31.6 72.5 175 M36x1.5
4 2854.18-200 18 31.6 97.5 200 M36x1.5
5 2855 18 44.7 87.5 217 M48x1.5
5 2855.18-250 18 44.7 120.5 250 M48x1.5
6 2856 18 63.8 108 290 M68x1.5
6 2856.35 35 63.8 108 290 M68x1.5

 

Form GV
  • With thread for draw-off nut solid carbide point, 60° with safety core
  • Patented Safety Core - In BRUCKNER Form GV Dead Centers with a carbide diameter of 20 to 45 mm, a patented safety core is integrated.  If there is a fissure in the joint between carbide and base metal, e.g. caused by operating or handling errors, the safety core prevents the carbide point with the mounted workpiece from slipping.  Thus consequential damage is avoided.
Technical Data:
Form Morse Taper ID No. D (mm) lC L G
GV *2 2852.18V 18.0 48 112 M22x1.5
3 2853.24V 24.1 57 138 M27x1.5
4 2854.32V 31.6 72.5 175 M36x1.5
4 2854.32V-200 31.6 97.5 200 M36x1.5
5 2855.45V 44.7 87.5 217 M48x1.5
5 2855.45V-250 44.7 120.5 250 M48x1.5
**6 2856.64V 63.8 108 290 M68x1.5

 

Form GZ
  • With thread for draw-off nut full center, 60°
  • Large carbide insert with safety core
  • Patented Safety Core - In BRUCKNER Form GZ Dead Centers with a carbide diameter of 20 to 45 mm, a patented safety core is integrated.  If there is a fissure in the joint between carbide and base metal, e.g. caused by operating or handling errors, the safety core prevents the carbide point with the mounted workpiece from slipping.  Thus consequential damage is avoided.
Technical Data:
Form Morse Taper ID No. D (mm) d d2 lC L G
GZ 3 2853.32x10 32 10 38 57 138 M27x1.5

 

Form GR
  • With thread for draw-off nut full center, 60°
  • Large carbide ring
Form Morse Taper ID No. D (mm) d lC L G

GR

 3 2853.45x25 45 25 57 138 M27x1.5
4 2854.45x25 45 25 72.5 175 M36x1.5
4 2854.60x40 60 40 72.5 175 M36x1.5
5 2855.46x25 45 25 87.5 217 M48x1.5
5 2855.60x40 60 40 87.5 217 M48x1.5

*Without safety core, carbide brazed in tapered seat
** Without safety core, carbide outer shell with base metal core

 

Draw-off Nut to DIN 807

ID No. d3 1A 1B
M 252 M22x1.5 15.5 32
M253 M27x1.5 17.5 41
M254 M36x1.5 21 55
M255 M48x1.5 23 75
M256 M68x1.5 25.5 100

 

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