Hopf disc 450mm x 4mm, smooth suitable for Union

Hopf disc 450 x 4 mm, smooth – suitable for Union

For discs on soil cultivation and sowing machines, dimensional accuracy determines the correct allocation. This hop disc has an outer diameter of 450 mm and a material thickness of 4 mm and features a smooth edge shape; the fastening pattern can be found in the data below. It is listed for Union.

Technical data of the disc

• Outer diameter: 450 mm
• Thickness: 4 mm
• Edge shape: smooth
• Number of holes: 18
• Hole diameter / bore: Rectangle 9 / Rectangle 11
• Pitch circle diameter: 200 mm
• Central hole / hub mounting: 46 mm

Suitable for and comparison numbers

The disc is for Union listed. For additional identification, the following numbers stored in the product data can be used: 31-168FO-R580.

Check dimensions and hole pattern before ordering

The smooth edge shape should match the machine's existing equipment; it is an important selection criterion compared to serrated or wavy variants. Before ordering, compare outer diameter, thickness, number of holes, bore diameter, bolt circle and centre hole or hub fitting. Even small deviations in the hole pattern can cause a disc not to fit despite having the same outer diameter. The designation "suitable for Union" serves for classification but does not replace the technical dimension comparison within the respective series.