Main Spindle Drives The NBL coupling is used in main spindle drives for machine tools. Torque spikes and cyclical loading are handled by the NBL series by damping or by shifting the vibratory frequency range to a non-critical speed range. NBL Series Service Factors Temperature Factor K3 Torsional Stiffness Factor K4 Calculation Formula Shock Load Factors K5 Rated nominal torqu eTn (Nm) = 9550 x P(kW) rpm(1/min) Rotational inertia coefficient (driver) = Moment of inertia (driver) Moment of inertia (driver) + Moment of inertia (driven) Rotational inertia coefficient (driven) = Moment of inertia (driven) Moment of inertia (driver) + Moment of inertia (driven) Check the nominal torque for the application against the rating for the coupling: Tkn > Rated torque of machine x K3 x K4 Peak Torque Shock load (driver side) = Peak torque (driver) x rotational inertia coefficient (driver) x K5 Shock load (driven side) = Peak torque (driven) x rotational inertia coefficient (driven) x K5 Check the peak torque for the application against the rating for the coupling checking both driver and driven sides: Tk Pump Drive Components max > Peak Torque (driver or driven side) x K3 x K4 Spidex® NBL Coupling 23 #DriveLineHarmony www.jbj.co.uk/couplings.html
RkJQdWJsaXNoZXIy NzQyNjQ=