Chuck in assembly (outer diameter Ø720mm, inner diameter Ø340mm):
Housing - steel 45. Quality class of work surface - Н7.
Scroll disk (spiral) - steel 40H, nitriding 48...52HRCэ.
Quality class of work surface - Н7. Oil oxidation.
Bushing - cast iron ACHS2. Quality class of work surface - Н7.
Rim (ring gear) - steel 40H. Quality class of work surface - Н7.
Slides - steel 40H, nitriding 48...52HRCэ.
Quality class of work surface - Н7. Oil oxidation.
Jaws - steel 40H, nitriding 48...52HRCэ.
Quality class of work surface - Н7. Oil oxidation.
Screws - steel 40H, nitriding 48...52HRCэ.
Quality class of work surface - Н7. Oil oxidation.