Platter Diameter 6.30 in 160 mm Max Weight on Platter (w/support) 70 lb 31.8 kg Max Weight on Platter (unsupported) 35 lb 15.9 kg Number of Std T-Slots 6 @ 60° 6 @ 60° SPINDLE S.A.E METRIC Number 2 2 Max Speed 80 °/sec 80 °/sec Max Torque 110 ft-lbf 149 Nm Runout Max 0.0005 in 0.013 mm Center Height 6.750 in 171.45 mm Backlash 30 arc-sec 30 arc-sec Brake Torque @ 100 psi/6.9 bar 100 ft-lbf 136 Nm Gear Ratio 63:1 63:1 Timing 2:1 2:1