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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: 4030MM23-70
Variations
Holding machinery firmly under load is the defining purpose of the 4030MM23-70, a rubber-to-metal bonded male-male bobbin mount rated to a maximum load of 87.0 kg with a controlled deflection of just 2.6 mm. At 70 Shore A, this is the firmest grade in the 40x30 mm male-male bobbin range, built where movement must be minimised and where heavier loads, shock impulses, or sustained vibration demand a mount that resists rather than yields. The 40 mm outer diameter and 30 mm height are paired with M8 x 23 mm threaded studs at each face, giving a secure, direct fixing into the machinery frame or support structure. Rubber-to-metal bonded construction ensures the elastomer and metalwork act as a single load-bearing unit, distributing dynamic forces evenly across the contact surfaces. The mount may be deployed in shear, compression, or a combination of the two, depending on the installation geometry and the nature of the load. At 70 Shore A, this grade is the right choice when applications call for positive restraint rather than soft isolation. Diesel engine installations in generator sets, heavy industrial machinery subject to shock loading, and off-highway or agricultural equipment where the mount must carry sustained weight whilst limiting structural transmission of impact forces are all well-served by this specification. The firmer compound also suits marine, railway, and power-generation environments where load stability is the priority over maximum vibration attenuation. This mount is part of a broader male-male bobbin range. Softer isolation grades are available as 4030MM23-45 and 4030MM23-60.
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 |
| Stud thread d | M8 |
| Stud length L (mm) | 23 |
| Max load (kg) | 87 |
| 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 | 5020MF28-45 | 4020FF08-70 | 5045FF08-60 | 5045FF10-60 | 5050FF10-60 |
| Type | Bobbin Mount | Bobbin Mount | Bobbin Mount | Bobbin Mount | Bobbin Mount |
| Length | 20mm | 20mm | 45mm | ||
| Height | 45mm | 50mm | |||
| Size | 50x20mm | 40x20mm | 50x45mm | 50x45mm | 50x50mm |
| Deflection | 1.5 | 1.2 | 4 | 4 | 4.5 |
| Diameter | 50mm | 40mm | 50mm | ||
| Diameter Range | 26-50mm | 26-50mm | 26-50mm | ||
| Length Range | 11-25mm | 11-25mm | 26-50mm | ||
| Shore Hardness | 45 | 70 | 60 | ||
| Thread | M10 | M8 | M8 | M10 | M10 |
| Show More | |||||
A. This mount has a maximum load rating of 87.0 kg and a deflection of 2.6 mm at that load.
A. Both threaded studs are M8 with a length of 23 mm, one on each face of the mount.
A. At 70 Shore A, this is the firmest grade in the 40x30 mm range. It carries higher loads with minimal movement, making it suitable for applications requiring positive restraint under heavy or shock loading rather than soft vibration isolation.
A. The outer diameter is 40 mm and the height is 30 mm.
A. This mount may be loaded in shear, compression, or a combination of the two, depending on the installation geometry.
A. Typical applications include diesel engine mountings in generator sets, heavy industrial machinery subject to shock loading, off-highway and agricultural equipment, and marine or railway installations where load stability and restraint are the primary requirements.
A. Yes — softer isolation grades for the 40x30 mm geometry are available as 4030MM23-45 and 4030MM23-60. Additional sizes include 0808MM06, 100100MM44, 10030MM44, 10040MM44, 10050MM44, and 10055MM44. Custom sizes and materials are also available on request.
A. Yes — stainless steel metalwork and oil-resistant or high-temperature rubber compounds, as well as additional and 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. WhatsApp us on 07754 288583 with photos of the item and packaging, and we will resolve the issue in line with our returns policy.
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