62 Carbide Dead Centres BRUCKNER WORKS STANDARD BRUCKNER WORKS STANDARD Our high performance live centres – standard as well as special designs – are produced and tested according to our works standard. Materials, production and testing are subject to strict quality guidelines guaranteeing function and performance. Regrinding line As a rule, BRUCKNER centres feature a regrinding line showing the useful end of the carbide. Forms R and GR do not have this line. Here the useful limit is marked by the braze line. In BRUCKNER solid carbide dead centres (forms V, GV, Z, GZ and HZ) with a carbide diameter of 20 to 45 mm the safety core sa•co® is integrated. If there is a fissure in the joint between carbide and base material, e.g. caused by operating or handling errors, sa•co® prevents the carbide point with the mounted workpiece from slipping. Thus high consequential costs are avoided. aco saco safety core from BRUCKNER ® s Braze line (form R/GR) Regrinding line Extract from DIN 806, DIN 228 and BRUCKNER WORKS STANDARD User information In our „User information“ you will find hints and tips for the use of our carbide centres, e. g. on work safety, causes and removal of roundness errors on the workpiece etc. Please advise us if you would like copies. Repair service We check the dead centre (also other makes) for: Damage/cracks in the carbide Sufficient fixing of the carbide in the base material Damaged taper shank We inform you about the extent of the necessary repair/regrinding work with a cost estimate. V = permissible eccentricity Z = maximum taper error taper increasing towards the large diameter along the tested length Ip DIN DIN BRUCKNER WORKS STANDARD Taper size d1 d2 d3 d4 d5 l1 l2 l3 l4 a V V Z Morse taper 0 9.045 9.2 6.4 6 0.5 50 53 70 4 3 0.01 0.003 0.002 1 12.065 12.2 9.4 9 0.5 53.5 57 80 5 3.5 0.01 0.003 0.003 2 17.78 18.0 14.6 14 0.8 64 69 100 5 5 0.01 0.003 0.003 3 23.825 24.1 19.8 19 0.8 81 86 125 7 5 0.01 0.004 0.004 4 31.267 31.6 25.9 25 1 102.5 109 160 9 6.5 0.01 0.004 0.005 5 44.399 44.7 37.6 36 1.6 129.5 136 200 10 6.5 0.01 0.004 0.006 6 63.348 63.8 53.9 51 2 182 190 270 16 8 0.01 0.004 0.006 Metric taper 80 80 80.4 70.2 67 * 196 204 * 24 8 * 0.005 0.006 100 100 100.5 88.4 85 * 232 242 * 30 10 * 0.005 0.007 120 120 120.6 106.6 102 * 268 280 * 36 12 * 0.005 0.008 *not standardized
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