Method for grinding the toothing of a gear

A method for grinding the toothing of a gear, wherein the gear has an axis of rotation, wherein the grinding being carried out by bringing a grinding tool into engagement with the toothing and grinding off an allowance on the tooth flanks of the toothing, wherein a nominal value for the width of teeth and/or for the spherical measure is predetermined for the toothing, wherein a tolerance band is predetermined for the nominal value, the observance of which still leads to good parts, wherein the method comprises the steps of:

• a) measuring the position of the surface of the tooth flanks of the not yet ground gear at least two axial positions of the gear offset in the direction of the axis of rotation;
• b) determining the actual present allowance of the gear which is not yet ground on the basis of the measured values determined in step a);
• c) grinding of the toothing by radial infeed of the grinding tool relative to the toothing,
• c1) wherein the radial infeed of the grinding tool relative to the toothing corresponds to the nominal value of the width of teeth and/or of the spherical measure, if the determination according to step b) has shown that such an allowance is present on all tooth flanks that material removal occurs on all tooth flanks, or
• c2) wherein the radial infeed of the grinding tool relative to the toothing is effected to a higher value than corresponds to the nominal value of the width of teeth and/or of the spherical measure, wherein the higher value still corresponding to the tolerance band for the width of teeth and/or for the spherical measure, if the determination according to step b) has shown that only with increased radial infeed on all tooth flanks is there such an allowance that material removal occurs on all tooth flanks.