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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: 4020FF08-70
Variations
Where a mounting must hold firm under heavier loads and resist shock or impact without excessive movement, the 40x20mm Female-Female Bobbin Mount in 70 Shore A rubber delivers precisely that. Rated to a maximum load of 88.0 kg with a deflection of just 1.2 mm, this SKU sits at the high-load end of the compact 40x20mm bobbin format, making it the natural choice within this diameter when controlling movement matters as much as isolation. Rubber-to-metal bonded construction gives the mount structural integrity across shear, compression, or combined loading directions. The 70 Shore A rubber compound is formulated to carry significant load with minimal give, resisting the displacement that softer grades allow, a characteristic that suits applications subject to repeated shock, dynamic forces, or any scenario where positional stability of the mounted component is a priority. Both threaded inserts are M8 female, providing a symmetrical fixing arrangement directly into the mounting structure above and below. The family source confirms suitability across a broad range of demanding sectors: diesel engines, generator sets, industrial machinery and equipment, exhaust mountings, and agricultural and off-highway plant. At 70 Shore A, this mount is particularly well matched to generator set installations, diesel engine ancillaries, and heavy industrial equipment where the mass of the mounted item or the intensity of operational vibration calls for firm, controlled restraint rather than soft compliance. Stainless steel metalwork and oil-resistant or high-temperature rubber compounds are available on request for specialist environments.
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| Hardness (Shore A) | 70 |
|---|---|
| Body diameter D (mm) | 40 |
| Overall height H (mm) | 20 |
| Fixing thread / bolt size d | M8 |
| Max load (kg) | 88 |
| Deflection (mm) | 1.2 |
| 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 | 6550MF37-45 | 4028MM25-70 | 4030MF23-70 | 4030MF25-70 | 4030MM23-70 |
| Type | Bobbin Mount | Bobbin Mount | Bobbin Mount | Bobbin Mount | Bobbin Mount |
| Length | 50mm | 28mm | 30mm | 30mm | 30mm |
| Size | 65x50mm | 40x28mm | 40x30mm | 40x30mm | 40x30mm |
| Deflection | 4.5 | 2.4 | 2.6 | 2.6 | 2.6 |
| Diameter | 65mm | 40mm | 40mm | 40mm | 40mm |
| Diameter Range | 51-100mm | 26-50mm | 26-50mm | 26-50mm | 26-50mm |
| Length Range | 26-50mm | 26-50mm | 26-50mm | 26-50mm | 26-50mm |
| Shore Hardness | 45 | 70 | 70 | 70 | 70 |
| Thread | M12 | M10 | M8 | M10 | M8 |
| Show More | |||||
A. This mount is rated to a maximum load of 88.0 kg with a deflection of 1.2 mm, reflecting the firm 70 Shore A rubber compound which carries high load with minimal movement.
A. The mount uses an M8 female thread at both ends — a symmetrical female-female arrangement that bolts directly into the structure above and below without requiring separate studs.
A. The mount measures 40 mm in diameter by 20 mm in height (D x H: 40 x 20 mm), with an M8 female thread on both faces.
A. The mount may be loaded in shear, compression, or a combination of both, as confirmed by the product family specification.
A. The family specification lists diesel engines, generator sets, industrial machinery and equipment, exhaust mountings, agricultural and off-highway plant, marine, railway and mass transit, automotive, and military and defence applications.
A. Yes — the same geometry is available in 45 Shore A (SKU 4020FF08-45) for lighter, more vibration-sensitive installations, and 60 Shore A (SKU 4020FF08-60) for general-purpose intermediate duty. Larger bobbin formats are also stocked; see variant listings for details.
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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