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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: 4030FF08-70
Variations
Where load capacity and positional control take priority, the female-female bobbin mount 4030FF08-70 delivers a firm 70 Shore A rubber element in a 40 x 30 mm body with M8 female threads at both ends, rated to a maximum load of 91.0 kg with a tightly controlled deflection of just 2.6 mm. At the top of the Shore A range for this geometry, this mount is the right choice when the assembly must be held firmly under heavier loads, shock inputs, or sustained vibration that would cause softer grades to deflect excessively. Constructed with rubber-to-metal bonded technology, the mount transfers force efficiently whilst absorbing impact energy before it reaches surrounding structures. The firm rubber compound maintains dimensional stability under load, making it well suited to applications where movement of the mounted component is undesirable, such as diesel engine ancillaries, generator set sub-frames, industrial machinery beds, and exhaust mounting systems subject to sustained thermal and mechanical stress. The mount operates in shear, compression, or a combination of both, giving installation engineers flexibility in orientation. Both female M8 threads accept standard fasteners directly, simplifying fitment in confined or pre-drilled locations. Industries including power generation, marine, construction and off-highway, agriculture, and automotive regularly employ this configuration where vibration isolation must be balanced against structural restraint. This mount is available in alternative Shore grades for the 40 x 30 mm M8 female-female geometry: 45 Shore A (4030FF08-45) and 60 Shore A (4030FF08-60).
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) | 40 |
| Overall height H (mm) | 30 |
| Fixing thread / bolt size d | M8 |
| Max load (kg) | 91 |
| Deflection (mm) | 2.6 |
| 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 | 4030MF23-70 | 6045MF25-45 | 4028MM25-70 | 5040MM25-60 | 5040MM28-60 |
| Type | Bobbin Mount | Bobbin Mount | Bobbin Mount | Bobbin Mount | Bobbin Mount |
| Length | 30mm | 45mm | 28mm | 40mm | 40mm |
| Size | 40x30mm | 60x45mm | 40x28mm | 50x40mm | 50x40mm |
| Deflection | 2.6 | 4 | 2.4 | 3.5 | 3.5 |
| Diameter | 40mm | 60mm | 40mm | 50mm | 50mm |
| Diameter Range | 26-50mm | 51-100mm | 26-50mm | 26-50mm | 26-50mm |
| Length Range | 26-50mm | 26-50mm | 26-50mm | 26-50mm | 26-50mm |
| Shore Hardness | 70 | 45 | 70 | 60 | 60 |
| Thread | M8 | M10 | M10 | M10 | M10 |
| Show More | |||||
A. This mount has a maximum load rating of 91.0 kg and a deflection of 2.6 mm, making it the firmest and highest-capacity option in the 40 x 30 mm M8 female-female bobbin range.
A. The 4030FF08-70 has female M8 threads at both ends, allowing direct fastening to threaded studs or bolts on both the equipment and the mounting surface without additional hardware.
A. The firm 70 Shore A compound is recommended for heavier loads, shock and impact environments, and installations where the mounted component must be held firmly — such as diesel engine ancillaries, generator set sub-frames, industrial machinery beds, and exhaust mountings under sustained mechanical and thermal stress.
A. The mount may be loaded in shear, compression, or a combination of both, giving engineers flexibility in mounting orientation to suit the application.
A. Softer grades such as 45 Shore A and 60 Shore A provide greater deflection and better vibration isolation at lower loads. The 70 Shore A grade carries the highest load with the least movement, prioritising positional control and structural restraint over maximum isolation.
A. Yes. Alternative Shore grades for the 40 x 30 mm M8 geometry are available as 4030FF08-45 (45 Shore A) and 4030FF08-60 (60 Shore A). Larger female-female formats include 100100FF16, 10040FF16, 10045FF16, 10050FF16, 10055FF16, and 10060FF16. Custom sizes and specialist rubber compounds are available on request.
A. Yes — stainless steel metal parts 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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