Quality: 9e27 DIN 3962/63/67 Material: C45 UNI EN 10027-1; Rm≈650N/mm² Toothing execution: toothing finished with tooling.. Toothing specifications: • Pressure angle α=20°; • Helix angle ß=19,528° • Helix direction= RIGHT Fp total pitch error: depending on rack length (see table) Gear rack