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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: 5020MF28-45
Where vibration isolation takes priority over restraint, the 50x20mm male-female bobbin mount in 45 Shore A rubber delivers the greatest deflection available across this geometry range. SKU 5020MF28-45 carries a maximum load of 87.0 kg with a deflection of 1.5 mm, making it well suited to lighter and compact installations where controlled movement under load is an advantage rather than a liability. Thread configuration is M10 x 28 on the male stud (d1) and M10 on the female thread (d2), with an outer diameter of 50 mm and a height of 20 mm. The 45 Shore A hardness grade occupies the softest end of this bobbin family. At this grade, the rubber compound yields more readily under dynamic load, absorbing lower-frequency vibration energy with greater efficiency than harder grades, an important characteristic when protecting sensitive instruments, compact generator sets, or lightly loaded industrial machinery from transmitted shock and vibration. Rubber-to-metal bonded construction ensures the interface remains secure under service conditions, and the mount may be employed in shear, compression, or a combination of both loading modes. Typical application areas supported by the family source include air-conditioning units, exhaust mountings, diesel engines, instrument mounting, and industrial equipment across sectors such as agriculture, power generation, marine, and automotive. For installations where the priority is maximum attenuation of vibration rather than limiting deflection under high or impulsive loads, the 45 Shore A grade is the appropriate selection from this diameter and height combination.
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 |
|---|---|
| Body diameter D (mm) | 50 |
| Overall height H (mm) | 20 |
| Stud thread d1 | M10 |
| Stud length L (mm) | 28 |
| Diameter / thread d2 (mm) | M10 |
| Max load (kg) | 87 |
| Deflection (mm) | 1.5 |
| 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 | 4030MM23-70 | 4030MM25-70 | 4020FF08-70 | 5045FF08-60 | 5045FF10-60 |
| Type | Bobbin Mount | Bobbin Mount | Bobbin Mount | Bobbin Mount | Bobbin Mount |
| Length | 30mm | 30mm | 20mm | 45mm | |
| Height | 45mm | ||||
| Size | 40x30mm | 40x30mm | 40x20mm | 50x45mm | 50x45mm |
| Deflection | 2.6 | 2.6 | 1.2 | 4 | 4 |
| Diameter | 40mm | 40mm | 40mm | 50mm | |
| Diameter Range | 26-50mm | 26-50mm | 26-50mm | 26-50mm | |
| Length Range | 26-50mm | 26-50mm | 11-25mm | 26-50mm | |
| Shore Hardness | 70 | 70 | 70 | 60 | |
| Thread | M8 | M10 | M8 | M8 | M10 |
| Show More | |||||
A. This mount has a maximum load rating of 87.0 kg and a deflection of 1.5 mm. These figures apply at 45 Shore A hardness, which is the softest grade available in the 50x20mm male-female bobbin range and provides the greatest deflection of the three grades offered at this geometry.
A. The outer diameter is 50 mm and the height is 20 mm (D x H: 50 x 20). The male stud is M10 with a length of 28 mm (d1 x L: M10 x 28), and the female thread is M10 (d2: M10).
A. A 45 Shore A grade is the softest available in this geometry and gives the greatest deflection under load, which translates to better attenuation of lower-frequency vibration. It is the appropriate choice for lighter or sensitive equipment where maximum isolation matters more than limiting movement. Harder grades — 60 Shore A (5020MF28-60) and 70 Shore A (5020MF28-70) — carry higher loads with less deflection and suit applications where restraint is the primary requirement.
A. This mount may be loaded in shear, compression, or a combination of both, giving flexibility in how it is oriented and integrated into an installation.
A. The family source covers air-conditioning units, exhaust mountings, diesel engines, generator sets, instruments, and general industrial machinery and equipment. Industries served include agriculture, power generation, marine, automotive, construction and off-highway, railway and mass transit, and military and defence. At 45 Shore A, this grade is particularly suited to lighter-duty and sensitive applications within those sectors.
A. Yes — stainless steel metal parts and oil-resistant or high-temperature rubber compounds are available on request, as are additional and custom sizes beyond those listed in the standard range.
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.
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