11 High Performance Live Centres S Series Types SKOP, SKOPG Centrepoint 60°/40° extended Runout Type SKOP max. 0.005 mm Type SKOPG max. 0.003 mm with test report Application Whenever the working distance between centre and workpiece is confined. The extended, slim centrepoint can enlarge this space. Type SKOP – conventional turning, CNC turning, roughing, finishing Type SKOPG – for turning operations demanding high accuracy Determination of admissible load Example: Type SKOP 5367, MT 4 Load graph: radial RK3/axial AK3 Permissible load at 1000 r.p.m. Radial load FR = 190 daN Workpiece weight FW = 380 daN Axial load FA = 510 daN The radial load FR determines the radial load capacity of a centre. FR = ± radial cutting forces + centrifugal force** **for unbalanced workpieces (1 daN = 1,02 kp) FW 2 Radial and axial loads for a bearing life of 2000 operating hours Radial – Types SKOP, SKOPG Axial – Types SKOP, SKOPG 50 40 100 200 300 5000 400 500 1000 2000 3000 4000 10000 300 40 50 100 200 500 400 1000 2000 4000 3000 5000 10000 1000 40 50 100 200 300 400 500 3000 2000 5000 4000 10000 Axialbelastung daN Drehzahl 1/min Drehzahl 1/min 10000 5000 4000 3000 2000 1000 500 400 300 200 100 50 40 200 20 25 100 50 150 250 500 1000 2000 1500 2500 5000 Radialbelastung daN Werkstückgewicht daN 2 1 3 RK AK 4 2 1 3 4 50 40 100 200 300 5000 400 500 1000 2000 3000 4000 10000 300 40 50 100 200 500 400 1000 2000 4000 3000 5000 10000 1000 40 50 100 200 300 400 500 3000 2000 5000 4000 10000 Axialbelastung daN Drehzahl 1/min Drehzahl 1/min 10000 5000 4000 3000 2000 1000 500 400 300 200 100 50 40 200 20 25 100 50 150 250 500 1000 2000 1500 2500 5000 Radialbelastung daN Werkstückgewicht daN 2 1 3 RK AK 4 2 1 3 4 r.p.m. r.p.m. workpiece weight daN radial load daN axial load daN DG DA LA LB LC D Type SKOP ID.No. 5362 5363 5366 5364 5367 5365 Type SKOPG ID.No. 5362G 5363G 5366G 5364G 5367G 5365G Morse taper 2 3 3 4 4 5 DA 20 20 25 25 35 45 D 6 6 8 8 10 12 DG 45 45 58 58 76 95 LA 30 30 42 42 54 70 LB 51 51 58 58 68 89 LC 87 89 106 108 132 169 Workpiece weight max. daN* 280 280 420 420 850 1500 r.p.m. max.* 5500 5500 5000 5000 4000 3500 Radial/axial load graph RK1/AK1 RK1/AK1 RK2/AK2 RK2/AK2 RK3/AK3 RK4/AK4 Supplementary seal ID.No. V20 V20 V25 V25 V35 V45 With draw-off thread see pages 16/17 *observe the load graphs
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