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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: 4030MM25-45
Variations
Engineered for lighter and sensitive installations where isolating low-frequency vibration takes priority over load restraint, the 4030MM25-45 is a 40 x 30 mm male-male bobbin mount with M10 x 25 mm threaded studs and a 45 Shore A rubber element. At this soft hardness grade, the mount reaches its rated maximum load of 33.0 kg while delivering 2.6 mm of deflection, a compliance level that enables effective absorption of vibration energy in applications where the equipment itself is relatively light or where transmitted shock must be kept to a minimum. The rubber-to-metal bonded construction allows the mount to be loaded in shear, compression, or a combination of both, giving engineers flexibility in orientation without sacrificing isolation performance. The soft 45 Shore A compound prioritises movement under load, making it the correct grade selection when preserving instrument accuracy, protecting sensitive components, or reducing structure-borne noise in compact assemblies is the primary design objective. Rubber hardness is a deliberate design parameter: softer grades deliver greater deflection and superior isolation at lower loads, in contrast to firmer grades that restrict movement in favour of carrying higher forces. Typical applications for this grade and size include air-conditioning units, instrumentation, smaller generator sets, diesel engine ancillaries, and general industrial machinery or equipment where loads fall within the 45 Shore A performance band. The mount is also suited to exhaust mountings and comparable automotive and off-highway service environments.
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| Hardness (Shore A) | 45 |
|---|---|
| Body diameter D (mm) | 40 |
| Overall height H (mm) | 30 |
| Stud thread d | M10 |
| Stud length L (mm) | 25 |
| Max load (kg) | 33 |
| 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 | 2525MF18-70 | 2515MM12-60 | 2515MM18-60 | 2515MM20-60 | 2525FF06-70 |
| Type | Bobbin Mount | Bobbin Mount | Bobbin Mount | Bobbin Mount | Bobbin Mount |
| Length | 25mm | 15mm | 25mm | ||
| Height | 15mm | 15mm | |||
| Size | 25x25mm | 25x15mm | 25x25mm | ||
| Deflection | 2.1 | 1.2 | 1.2 | 1.2 | 2.1 |
| Diameter | 25mm | 25mm | 25mm | ||
| Diameter Range | 11-25mm | 11-25mm | 11-25mm | ||
| Length Range | 11-25mm | 11-25mm | 11-25mm | ||
| Mount Dimension | 25mm | 25mm | |||
| Shore Hardness | 70 | 60 | 70 | ||
| Thread | M6 | M6 | M6 | M8 | M6 |
| Show More | |||||
A. The 4030MM25-45 is rated to a maximum load of 33.0 kg and provides 2.6 mm of deflection at that load. These figures reflect the 45 Shore A soft rubber compound, which prioritises compliance and vibration absorption over load restraint.
A. Shore A hardness indicates the firmness of the rubber element. At 45 Shore A, this is a soft grade that allows greater deflection under load and delivers better vibration isolation at lower loads. It is the appropriate choice when the priority is absorbing vibration or shock rather than restricting movement, particularly for lighter or sensitive equipment.
A. The mount may be loaded in shear, compression, or a combination of both, providing flexibility in installation orientation to suit the specific mounting arrangement of the application.
A. This mount is designed for air-conditioning units, instrumentation, diesel engine ancillaries, exhaust mountings, smaller generator sets, and general industrial machinery. Industries served include agriculture, marine, power generation, railway and mass transit, automotive, off-highway, and military and defence.
A. Yes. The same 40 x 30 mm M10 x 25 mm geometry is available in 60 Shore A (SKU 4030MM25-60) for medium-duty general-purpose use, and 70 Shore A (SKU 4030MM25-70) for higher-load or greater-restraint duties.
A. Yes. Stainless steel metalwork, oil-resistant rubber compounds, high-temperature rubber compounds, and additional or custom sizes are available on request.
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. In-stock orders placed before 14:30 Monday to Friday are usually dispatched the same day.
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