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BRUCKNER DEAD CENTERS
B, HB, R, AND Z FORMS

 

Forms B, HB, R, and Z

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 B
  • Female center with ground centerbore in the carbide, 60°
Technical Data:
Form Morse Taper ID No b a d2 lC L

B

 1 2821 2.8x1.5 6 12.2 23.5 77
2 2822 4.0x2.0 9 18.0 32 96
3 2823 5.0x2.5 9 24.1 38 119
4 2824 6.0x3.0 12 31.6 49.5 152
5 2825 6.0x3.0 12 44.7 59.5 189

 

Form HB
  • Female center with ground centerbore in the carbide, 60°
  • with Flat
Technical Data:
Form Morse Taper ID No b a h lh d2 lC L

HB

 1 2831 2.8x1.5 6 3 19 12.2 23.5 77
2 2832 4.0x2.0 9 4 26 18.0 32 96
3 2833 5.0x2.5 9 5 32 24.1 38 119
4 2834 6.0x3.0 12 5.5 42 31.6 49.5 152
5 2835 6.0x3.0 12 5.5 52 44.7 59.5 189

 

Form Z
  • Full center, 60°
  • Large carbide insert with safety core
Technical Data:
Form Morse Taper ID No. D (mm) d (mm) d2 (mm) lC (mm) L (mm)

Z

 2 2802.32 x 10 32 10 38 46 110
3 2803.32 x 10 32 10 38 50 131
4 2804.24 24 1 31.6 57.5 160
4 2804.32 x 10 32 10 38 57.5 160
5 2805.32 x 10 32 10 44.7 70.5 200

 

Form R
  • Full center, 60°
  • Large carbide ring, diameter up to 100 mm
Technical Data:
Form Morse Taper ID No. D (mm) d (mm) lC (mm) L (mm)
R 2 2802.40x20 40 20 41 105
2 2802.50x30 50 30 41 105
2 2802.60x40 60 40 41 105
2 2802.70x50 70 50 41 105
R 3 2803.40x20 40 20 44 125
3 2803.50x30 50 30 44 125
3 2803.60x40 60 40 44 125
3 2803.70x50 70 50 44 125
R 4 2804.40x20 40 20 57.5 160
4 2804.50x30 50 30 57.5 160
4 2804.60x40 60 40 57.5 160
4 2804.70x50 70 50 57.5 160
4 2804.80x60 80 60 57.5 160
4 2804.100x75 100 75 57.5 160
R 5 2805.40x20 40 20 70.5 200
5 2805.60x40 60 40 70.5 200
5 2805.70x50 70 50 70.5 200
5 2805.80x60 80 60 70.5 200
5 2805.100x75 100 75 70.5 200

 

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