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Male Flat Buffer 75x30mm M12 45 Shore - 7530MFB37-45
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Technical Specification
PRODUCT NUMBER 6030MFB37-707525MFB37-457555MFB37-707035MFB25-607035MFB37-60
Type Flat BufferFlat BufferFlat BufferFlat BufferFlat Buffer
Length 30mm25mm55mm35mm35mm
Size 60x30mm75x25mm75x55mm70x35mm70x35mm
Deflection 7.56.2513.768.88.8
Diameter 60mm75mm75mm70mm70mm
Diameter Range 51-100mm51-100mm51-100mm51-100mm51-100mm
Length Range 26-50mm11-25mm51-100mm26-50mm26-50mm
Shore Hardness 7045706060
Thread M12M12M12M10M12
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Q 1. What is the maximum load and deflection for the 7530MFB37-45 buffer?

A. This buffer carries a maximum load of 879.0kg with a deflection of 7.50mm under that load. The 45 Shore A rubber compound is the softest grade in this geometry, providing the greatest movement under load and the highest degree of vibration isolation.

Q 2. What are the physical dimensions and thread specification of this buffer?

A. The buffer body measures 75mm diameter by 30mm height (D x H: 75 x 30). The male stud is M12 with a 37mm shank length (d x L: M12 x 37).

Q 3. Why choose a 45 Shore A grade rather than a harder grade for this size?

A. Softer grades such as 45 Shore A give greater deflection and better vibration isolation at lower loads and lower excitation frequencies. Where the priority is protecting sensitive equipment or improving operator comfort rather than restricting movement under shock, the 45 Shore A grade is the appropriate choice. Harder grades (60 Shore A or 70 Shore A) carry higher loads with less deflection and are suited to firmer restraint duties.

Q 4. In which industries and applications is this buffer used?

A. The Male Flat Buffer range is used across construction and off-highway equipment, agricultural machinery, industrial machinery, commercial vehicles, elevators, power generation, marine, railway and mass transit, automotive, and military and defence applications. The 45 Shore A soft grade is particularly appropriate for lighter-duty or sensitive-equipment installations where isolation from vibration and impact is the primary requirement.

Q 5. How does this buffer absorb vibration and impact energy?

A. The buffer works by absorbing and dissipating energy through its rubber-to-metal bonded element. It may be loaded in compression, shear, or a combination of both, cushioning impact forces from a secondary moving object or acting as an elastic contact element against a surface. This reduces impact force transmitted to the machine structure and surrounding components.

Q 6. Are other Shore hardness grades or custom specifications available for this buffer?

A. Yes. The 75x30mm Male Flat Buffer is available in 60 Shore A (SKU 7530MFB37-60) and 70 Shore A (SKU 7530MFB37-70) for applications requiring firmer response and greater load restraint. Custom options including oil-resistant rubbers, high-temperature compounds, and stainless steel metalwork are available on request.

Q 7. What if my order arrives damaged or incorrect?

A. WhatsApp us on 07754 288583 with photos of the item and packaging, and we will resolve the issue in line with our returns policy.

Q 8. Can I ask questions about this product before ordering?

A. Yes — WhatsApp us on 07754 288583 with any questions about specifications, suitability, or compatibility.

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