Material: Special steel, strength ca. 1.000 N/mm². Outside diameter = h6 ground. Product No. 224 666 31 and 224 666 32 Ø-tolerance h9. Tooth flanks not ground. Pressure angle 20°. Milled teeth. Tooth quality 8d25 modelled on DIN 3967. The teeth on the gear racks are manufactured using an overhead milling cutter. This leads to negative tolerances. Dimensions ha and h0: up to Module 2: -0,2 mm. Module 2,5 to 4: -0,3 mm. Module 5 to 6: -0,4 mm.