Item/Model Unit AR(s)-125R AR(s)-170R AR(s)-210R AR(s)-250R Table Diameter mm ø125 ø170 ø210 ø250 Diameter of Table Central Hole mm ø35H7 ø67 ø67 ø67 Inner Diameter of Mandrel Sleeve mm ‐ ø40H7 ø40H7 ø40H7 Diameter of Center Through Hole mm ø25 ø40 ø40 ø40 Center Height (Vertical) mm 110 135 160 160 Table Height (Horizontal) mm 152 152 152 160 Table T-slot Width mm 12H7 12H7 12H7 12H7 Guide Block Width mm 14h7 18h7 18h7 18h7 Min. Increment deg. 0.001 0.001 0.001 0.001 Indexing Precision sec. 40 20 20 20 Repeatability sec. 4 4 4 4 Clamping System (Pneumatic) kg/cm² 6 6 6 6 Clamping Torque kg-m 13 31 31 31 Servo Motor Model FANUC Taper shaft α4is/β4is α4i/α8i/β8is α4i/α8i/β8is α4i/α8i/β8is MITSUBISHI Taper shaft HF-75/105 HF-54/104 HF-54/104 HF-54/104 Speed Reduction Ratio ‐ 1∶60 1∶90 1∶90 1∶90 Max. Rotation Rate of Table (Calculate with Fanuc α Motor) r.p.m 83.3 44.4 44.4 44.4 Allowable Inertia Load Capacity (Horizontal) kg.cm.sec² 2 5.4 8.3 11.7 Allowable Workpiece Load Vertical kg 50 75 75 75 with Tailstock kg 100 150 150 150 Horizontal kg 100 150 150 150 Allowable Load(with Rotary Table Clamping) F kgf 1000 1450 1450 1450 FxL kgf.m 45 100 100 100 FxL kgf.m 13 31 31 31 Strength of worm gears kg.m 9 18 18 18 Net Weight (servo motor excluded) kg 34 50 55 58