The component measures approximately 80 × 80 × 55 mm. Its geometry combines a square body, a circular front register and a central stepped cavity for assembly.
Angled view showing the square body, circular front register and side threaded port.
Material: S45C steel
Approximate size: 80 × 80 × 55 mm
Surface finish: black oxide
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Geometric features
The central cavity is machined through several diameter steps with a blended transition. The Ø40 bore is controlled within 40.03–40.05 mm, giving a total tolerance of 0.02 mm. Four mounting holes are arranged on a 60 × 60 mm pattern, while two pipe-thread ports are located on perpendicular faces.
Front view showing the central stepped cavity and four mounting positions.
Stepped central bore: Ø30, Ø40 and Ø45
Ø40 bore limits: 40.03–40.05 mm
Functional bore surface: Ra 1.6
Four Ø11 mounting holes
Rc 1/8 and Rc 1/4 pipe-thread ports
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Machining and control
Machining must maintain the relationship between the central bore axis, mounting face, four bolt holes and side threaded ports. After dimensional completion, the component receives black oxide and a final appearance inspection before packing.