Material: Steel C45. Teeth induction hardened (approx. HRC 50). Ready-to-install, for various shaft diameters. Custom bore H7 - surface parameter Ra 1,6, keyway in accordance with DIN 6885/1 positioned beneath tip of tooth, 2 threads for set screws, one positioned for the keyway, one offset by 90°. General dimensions: B1 = 16,2 mm, c = 2,5 mm, r3 = 26 mm. Other dimensions: See the table.