High Performance Live Centres LK Series 25 Types LKH, LKHG Centrepoint 60° with carbide insert Runout Type LKH max. 0.005 mm Type LKHG max. 0.003 mm with test report Application High performance turning, hard turning, fine turning, cylindrical grinding. For operations in which additional stress is put on the centrepoint (e.g. large series, workpiece change when spindle is running, hard workpieces, extremely small workpiece centres). D G DA DG LB LA LC 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 RE AE 3 2 1 3 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 RE AE 3 2 1 3 Radial and axial loads for a bearing life of 2000 operating hours (calculation example on page 11) Radial – Types LKH/LKHG Axial – Types LKH/LKHG r.p.m. r.p.m. workpiece weight daN radial load daN axial load daN Type LKH ID.No. 750H 055003A 750H 055004A 750H 068004A 750H 068005A 750H 092005A Type LKHG ID.No. 751H 055003A 751H 055004A 751H 068004A 751H 068005A 751H 092005A Morse taper 3 4 4 5 5 DA 26 26 36 36 51 D 14 14 18 18 18 DG 55 55 68 68 92 LA 26 26 35 35 47 LB 41 41 51.5 51.5 60 LC 71 72 92 92 113 G M55x1.5 M55x1.5 M68x1.5 M68x1.5 M92x1.5 Workpiece weight max. daN* 240 240 450 450 500 r.p.m. max.* 7000 7000 6000 6000 5000 Radial/axial load graph RE1/AE1 RE1/AE1 RE2/AE2 RE2/AE2 RE3/AE3 Draw-off nut (page 23) M55L M55L M68L M68L-5 M92L *observe the load graphs
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