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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: 4040MM23-70
Variations
With a rated maximum load of 74.0 kg with a controlled deflection of just 3.6 mm, the 4040MM23-70 is the firmest option in the 40x40 mm male-male bobbin mount family, purpose-built for heavier loads where minimal movement and positive restraint are the primary requirements. Its 40 mm diameter by 40 mm height body accepts M8 x 23 mm threaded studs on both faces, allowing straightforward through-mounting into supporting steelwork or fabricated brackets without additional hardware. Rubber-to-metal bonded construction gives the 4040MM23-70 its structural integrity. At 70 Shore A hardness this mount resists deformation under sustained loading, absorbs shock and impact loads without transmitting them into surrounding structures, and holds mounted equipment firmly in position during operation. The rubber element may be loaded in shear, compression, or a combination of both, providing installation flexibility across different mounting orientations. The 40x40 mm M8 geometry at 70 Shore A is well suited to diesel engine ancillaries, generator set sub-frames, industrial machinery and equipment where vibration control must be paired with firm positional retention, and exhaust mounting systems subject to thermal and mechanical shock. The mount also finds application in construction and off-highway plant, agricultural equipment, power generation installations, and marine machinery rooms, anywhere that higher load capacity and reduced deflection are preferable to maximum isolation. Custom variants in stainless steel metalwork and oil-resistant or high-temperature rubbers are available on request. This mount is part of a broader male-male bobbin range.
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) | 40 |
| Stud thread d | M8 |
| Stud length L (mm) | 23 |
| Max load (kg) | 74 |
| Deflection (mm) | 3.6 |
| 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 | 4025MF20-60 | 4025MF25-60 | 4028MF25-60 | 4045MM25-70 | 4040MF20-70 |
| Type | Bobbin Mount | Bobbin Mount | Bobbin Mount | Bobbin Mount | Bobbin Mount |
| Length | 25mm | 45mm | 40mm | ||
| Height | 25mm | 28mm | |||
| Size | 40x25mm | 40x45mm | 40x40mm | ||
| Deflection | 2.1 | 2.1 | 2.1 | 4.1 | 3.6 |
| Diameter | 40mm | 40mm | 40mm | ||
| Diameter Range | 26-50mm | 26-50mm | 26-50mm | ||
| Length Range | 11-25mm | 26-50mm | 26-50mm | ||
| Mount Dimension | 40mm | 40mm | |||
| Shore Hardness | 60 | 70 | 70 | ||
| Thread | M8 | M8 | M8 | M10 | M8 |
| Show More | |||||
A. The 4040MM23-70 is rated to a maximum load of 74.0 kg with a deflection of 3.6 mm under load.
A. Both threaded studs are M8 with a stud length of 23 mm, suitable for standard M8 fixing arrangements on both faces of the mount.
A. At 70 Shore A this is the firmest grade in the 40x40 mm bobbin range. It carries higher loads with minimal movement — 3.6 mm deflection — making it the preferred choice where equipment must be held firmly and shock or impact loads are present, rather than where maximum vibration isolation at lower loads is the goal.
A. The rubber element can be loaded in shear, compression, or a combination of both, giving flexibility in mounting orientation to suit the installation.
A. The 4040MM23-70 is suited to diesel engine ancillaries, generator set sub-frames, industrial machinery, exhaust mountings, and construction and off-highway plant — wherever firm positional retention and higher load capacity are required alongside vibration control. Industries served include agriculture, power generation, marine, automotive, and railway.
A. Yes. Softer grades offering greater deflection and improved isolation at lower loads are available as 4040MM23-45 (45 Shore A) and 4040MM23-60 (60 Shore A) in the same body and thread configuration.
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. 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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