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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: PR757040-45
Where vibration isolation takes priority over load restraint, the 45 Shore A profiled bobbin mount PR757040-45 delivers the compliance needed to protect sensitive or lighter machinery from damaging vibration and shock. With outer diameter D1 75 mm, inner profile D2 70 mm, height H 40 mm, M12x37 male upper thread and M12 female lower thread, and a maximum rated load of 139 kg per mounting, this soft-grade rubber-to-metal bonded unit is optimised for applications where low-frequency isolation and maximum deflection under working load are the governing requirements. The 45 Shore A rubber compound sits at the softer end of the hardness range, yielding greater deflection and superior vibration attenuation compared with harder grades of the same geometry. This characteristic makes it particularly well suited to instruments and precision equipment, air-conditioning units, and generator sets where isolating structure-borne vibration from surrounding frames and floors is the primary duty. The mount can be loaded in shear, compression or a combination of both, giving installation engineers flexibility in orientation without sacrificing isolation performance. The rubber-to-metal bonded construction bonds the elastomer securely to the metal inserts, maintaining integrity under sustained dynamic loading while protecting surrounding structures and improving operator comfort. The standard M12 thread configuration fits commonly available fastener hardware without modification. For applications requiring enhanced chemical resistance or elevated operating temperatures, stainless steel metal parts and oil-resistant or high-temperature rubber compounds are available on request. This mount is part of a wider profiled 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) | 45 |
|---|---|
| Diameter / thread d1 (mm) | 75 |
| Diameter / thread d2 (mm) | 70 |
| Overall height H (mm) | 40 |
| Type d1 | M12x37 |
| 1 d1 | M12x37 |
| 2 d2 | M12 |
| Type d2 | M12 |
| 3 d2 | M12 |
| Max load (kg) | 139 |
| 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 | 7040MM25-45 | 7040MM37-45 | 5025FF10-60 | 6535FF12-45 | 7040MF25-45 |
| Type | Bobbin Mount | Bobbin Mount | Bobbin Mount | Bobbin Mount | Bobbin Mount |
| Length | 40mm | 40mm | 25mm | 35mm | 40mm |
| Size | 70x40mm | 70x40mm | 50x25mm | 65x35mm | 70x40mm |
| Deflection | 3.4 | 3.4 | 2.1 | 3 | 3.4 |
| Diameter | 70mm | 70mm | 50mm | 65mm | 70mm |
| Diameter Range | 51-100mm | 51-100mm | 26-50mm | 51-100mm | 51-100mm |
| Length Range | 26-50mm | 26-50mm | 11-25mm | 26-50mm | 26-50mm |
| Shore Hardness | 45 | 45 | 60 | 45 | 45 |
| Thread | M10 | M12 | M10 | M12 | M10 |
| Show More | |||||
A. The mount has an outer diameter D1 of 75 mm, inner profile D2 of 70 mm, and a height H of 40 mm. The upper thread is M12x37 male and the lower thread is M12 female.
A. The PR757040-45 is rated to a maximum load of 139 kg per mounting.
A. A softer 45 Shore A compound gives greater deflection under load and superior vibration attenuation at lower frequencies compared with harder grades of the same size. It is the appropriate choice when isolating sensitive or lighter equipment from structure-borne vibration is the priority rather than carrying high loads or resisting shock.
A. The source identifies suitable applications as including air-conditioning units, exhaust mountings, diesel engines, generator sets, instruments, and industrial machinery and equipment.
A. The mount may be loaded in shear, compression or a combination of both, providing flexibility in mounting orientation to suit the installation.
A. Yes — stainless steel metal parts and oil-resistant or high-temperature rubber compounds, as well as additional and custom sizes, are available on request.
A. Yes — firmer grades in the same 75 mm geometry are available as PR757040-60 (60 Shore A) and PR757040-70 (70 Shore A). Alternative sizes in the profiled bobbin family include PR1009555, PR1009575, PR262222, PR403528, and PR464025.
A. We accept returns within 30 days of purchase for items that are unused, undamaged, and in their original packaging. Returns are available only for UK-delivered orders and must include proof of purchase. Before returning an item, please contact us at [email protected] to obtain a Return Merchandise Number (RMN).
A. In-stock orders placed before 14:30 Monday to Friday are usually dispatched the same day.
A. In-stock orders placed before 14:30 Monday to Friday are usually dispatched the same day.
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