Mackay M175031 4-Hole Hy-Deflection Dome Mount, M12, 280 kg
Available
The Mackay 4-hole Hy-Deflection dome mount is the larger anti-vibration dome mount in this range, with a square four-hole mounting flange. Mackay says these Hy-Deflection dome mounts offer great elasticity in the radial and axial directions, and that their internal design suits machines that produce vibrations in 3 directions (manufacturer-stated). The design makes installation easy, and Mackay lists the dome mount as a replacement for "M" type isolators (manufacturer-stated).
Mackay says the top metal part has an internal thread for securing to the machine (manufacturer-stated). The three part numbers, M175031, M175036 and M175041, have M12, M16 and M24 threads for loads of 280 kg, 380 kg and 1400 kg, with deflections of 14 mm, 18 mm and 50 mm and holes spaced 120 mm, 160 mm and 250 mm apart.
Where this product is used
- Compressors (manufacturer-stated)
- Air-conditioners (manufacturer-stated)
- Ventilators (manufacturer-stated)
- Vibrating tables (manufacturer-stated)
- Machines that produce vibrations in 3 directions (manufacturer-stated)
Features
- Great elasticity in the radial and axial directions (manufacturer-stated)
- Internal design suited to machines that produce vibrations in 3 directions (manufacturer-stated)
- Top metal part has an internal thread for securing to the machine (manufacturer-stated)
- Metal parts are electrolytic coated to protect against corrosion (manufacturer-stated)
- Rubber hardness is engraved on the metal parts (manufacturer-stated)
- Listed as a replacement for "M" type isolators (manufacturer-stated)
Common specifications
| Specification | Detail |
|---|---|
| Part numbers | M175031, M175036, M175041 |
| Thread (C) | M12, M16 and M24 |
| Load | 280 kg, 380 kg and 1400 kg |
| Deflection | 14 mm, 18 mm and 50 mm |
| Hole spacing (D) | 120 mm, 160 mm and 250 mm |
| Plate size (E) | 150 mm, 200 mm and 310 mm |
| Hole diameter (G) | 14.5 mm, 14.5 mm and 18.5 mm |
| Weight | 1.35 kg, 2.39 kg and 10.4 kg |
Key specifications
| Mackay part number | Load (kg) | Deflection (mm) | Thread (C) | Head dia. A (mm) | Height B (mm) | Hole spacing D (mm) | Plate E (mm) | Plate thickness F (mm) | Hole dia. G (mm) | Weight (kg) |
|---|---|---|---|---|---|---|---|---|---|---|
| M175031 | 280 | 14 | M12 | 76 | 63.5 | 120 | 150 | 5 | 14.5 | 1.35 |
| M175036 | 380 | 18 | M16 | 100 | 84 | 160 | 200 | 4 | 14.5 | 2.39 |
| M175041 | 1400 | 50 | M24 | 187 | 158 | 250 | 310 | 6 | 18.5 | 10.4 |
Dimension letters follow the Mackay drawing, in millimetres: A head diameter, B height, C thread, D hole spacing, E plate size, F plate thickness and G hole diameter. The weight column is headed "KgM" in the Mackay table and is read here as kg. Figures are from the Mackay Vibration Isolators catalogue (Industrial Edition 09/2026). The older Industrial Rubber Technology catalogue prints different values for some part numbers. Mackay prints all properties as nominal and asks you to contact them for technical advice.
Selecting the right option
Pick the part number whose load figure matches the weight each mount will carry: the table gives one load figure, in kg, for each part number. Check the thread, hole spacing, plate size and hole diameter against your machine and bed plate. The three sizes differ a lot in deflection (14 mm to 50 mm), so match the deflection as well as the load. Mackay prints all properties as nominal and asks you to contact them for technical advice. Contact Mackay for critical loads.
Related products
The 2-hole version for lighter loads: Mackay 2-Hole Hy-Deflection Dome Mount.
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280
Model Number: M175031
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380
Model Number: M175036
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1400
Model Number: M175041
