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| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £9.95 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £9.95 | 7 to 10 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £3.99 | 3 to 5 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £9.95 | 5 to 7 working days |
| SERVICE | DELIVERY PRICE | DELIVERY TIME |
|---|---|---|
| Standard Delivery | £9.95 | 7 to 10 working days |
Product Number: 5030FFB12-70
Variations
Carrying a maximum load of 515 kg with a controlled deflection of just 7.5 mm, the 5030FFB12-70 is a 50 x 30 mm female flat buffer threaded M12 in 70 Shore A rubber, the firmest grade in this geometry and the right choice where loads are substantial, shocks are frequent, and positional stability cannot be compromised. The higher durometer resists excessive movement under load, making it the appropriate selection over softer grades when the application demands that a component is held firmly rather than allowed to oscillate freely. Rubber-to-metal bonded construction delivers the structural integrity needed to sustain repeated impact cycles without delamination or creep. The female threaded insert simplifies installation directly onto a male-threaded boss or stud, and the flat buffer form factor places rubber in compression, the loading mode best suited to absorbing and dissipating impact energy from a secondary object or as a direct-contact elastic element between surfaces. Custom variants in oil-resistant or high-temperature rubber compounds, and in stainless steel metalwork, are available on request. At 70 Shore A, this buffer is well matched to heavier plant in construction and off-highway environments, agricultural machinery subject to ground-induced shock, commercial vehicles, power generation equipment, and industrial machinery where high-load restraint and minimal deflection are priorities. It also serves marine and railway applications where firm mounting of equipment is required under dynamic operating conditions. Industries including military and defence, and automotive manufacturing, are further areas of use confirmed for this family.
About PartsForMachines:PartsForMachines is a premier e-commerce platform, founded in 2019 in Warwickshire, UK, specializing in aftermarket parts and services for construction, agriculture, and industrial machinery. We offer an extensive catalog of over 500,000 products. Standard delivery: 1–3 working days within UK mainland. We are proud to be an authorised distributor, giving customers extra confidence when purchasing genuine products from us. In addition, we provide a 30-day return policy for eligible items.
| Hardness (Shore A) | 70 |
|---|---|
| Body diameter D (mm) | 50 |
| Overall height H (mm) | 30 |
| Fixing thread / bolt size d | M12 |
| Max load (kg) | 515 |
| Deflection (mm) | 7.5 |
| Engine Parts | Product Number | Product Name | Recommended Units | Product Price |
|---|
Standard Delivery: £3.99
Delivery Estimate: 3 to 5 working days
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| Technical Specification | |||||
|---|---|---|---|---|---|
| PRODUCT NUMBER | 6045FFB12-60 | 5021MFB25-60 | 6025MFB25-45 | 5021FFB08-60 | 5020MFB28-60 |
| Type | Flat Buffer | Flat Buffer | Flat Buffer | Flat Buffer | Flat Buffer |
| Length | 45mm | 21mm | 25mm | ||
| Height | 21mm | 20mm | |||
| Size | 60x45mm | 50x21mm | 60x25mm | 50x20mm | |
| Deflection | 11.25 | 5.3 | 6.3 | 5 | 5 |
| Diameter | 60mm | 50mm | 60mm | ||
| Diameter Range | 51-100mm | 26-50mm | 51-100mm | ||
| Length Range | 26-50mm | 11-25mm | 11-25mm | ||
| Shore Hardness | 60 | 60 | 45 | ||
| Thread | M12 | M10 | M10 | M8 | M10 |
| Show More | |||||
A. The 5030FFB12-70 has a maximum load rating of 515 kg and a deflection of 7.5 mm. The 70 Shore A hardness delivers the highest load capacity and least movement of the three grades available in this 50 x 30 mm M12 geometry.
A. Harder grades such as 70 Shore A carry higher loads with less movement. Select the 70 Shore A where loads are heavy, shock and impact loads are frequent, or where the mounted component must be held firmly with minimal deflection. Softer grades (45 or 60 Shore A) provide greater deflection and better vibration isolation at lower loads.
A. The 5030FFB12-70 is 50 mm in diameter and 30 mm in height, with an M12 female threaded insert.
A. This buffer is suited to construction and off-highway equipment, agricultural machinery, commercial vehicles, industrial machinery, power generation, marine, railway and mass transit, automotive, and military and defence applications where firm, high-load rubber mounting is required.
A. The buffer works by absorbing and dissipating impact energy through rubber in compression. The female threaded insert mounts onto a male-threaded boss or stud; the flat rubber element then acts as a direct-contact elastic element or cushions a secondary moving component, reducing transmitted shock to the surrounding structure and improving machinery lifespan.
A. Yes. The 50 x 30 mm M12 geometry is available in 45 Shore A (5030FFB12-45) and 60 Shore A (5030FFB12-60) for lower-load and general-purpose applications respectively. Larger M16 variants are also available: 100 x 100 mm (100100FFB16), 100 x 30 mm (10030FFB16), 100 x 40 mm (10040FFB16), 100 x 50 mm (10050FFB16), 100 x 55 mm (10055FFB16), and 100 x 60 mm (10060FFB16).
A. Yes — stainless steel metalwork and oil-resistant or high-temperature rubber compounds are available on request, as are additional and custom sizes.
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.
A. Yes — WhatsApp us on 07754 288583 with any questions about specifications, suitability, or compatibility.
A. Yes — WhatsApp us on 07754 288583 with any questions about specifications, suitability, or compatibility.
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