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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 | £5.49 | 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: 4020MFB23-70
Variations
With a rated maximum load of 333.5 kg with a controlled deflection of just 5.0 mm, the Male Flat Buffer 4020MFB23-70 is the firm-grade option in the 40x20 mm flat buffer range, built for applications where load must be borne with minimal movement and components must be held securely in place. Its rubber-to-metal bonded construction combines a 40 mm diameter by 20 mm height rubber element with an M8 x 23 mm male stud, giving a compact footprint that fits readily into confined mounting positions across heavy-duty machinery. At 70 Shore A, the rubber compound delivers the highest load capacity and least deflection in this diameter family, making it the correct selection wherever shock and impact forces are substantial and positional restraint is essential. Energy is absorbed and dissipated through the rubber element rather than transmitted to the surrounding structure, reducing impact force from secondary moving components and protecting adjacent assemblies. The low-cost, easy-to-install design requires no special tooling, and the male stud thread provides a direct, secure fixing point. This firm grade is well suited to construction equipment, agricultural machinery, and commercial vehicles where heavier operating loads and repeated impact cycles demand a buffer that resists compression and limits travel. It is equally appropriate for industrial machinery and power-generation equipment where a component must act as a positive end-stop or elastic restraint rather than a soft isolator.
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) | 20 |
| Stud thread d | M8 |
| Stud length L (mm) | 23 |
| Max load (kg) | 333.5 |
| Deflection (mm) | 5 |
| Engine Parts | Product Number | Product Name | Recommended Units | Product Price |
|---|
Standard Delivery: £5.49
Delivery Estimate: 3 to 5 working days
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| Technical Specification | |||||
|---|---|---|---|---|---|
| PRODUCT NUMBER | 5020MFB28-45 | 5021MFB25-45 | 4020FFB08-70 | 4020FFB10-70 | 6045FFB12-45 |
| Type | Flat Buffer | Flat Buffer | Flat Buffer | Flat Buffer | Flat Buffer |
| Length | 20mm | 21mm | 20mm | 20mm | 45mm |
| Size | 50x20mm | 50x21mm | 40x20mm | 40x20mm | 60x45mm |
| Deflection | 5 | 5.3 | 5 | 5 | 11.25 |
| Diameter | 50mm | 50mm | 40mm | 40mm | 60mm |
| Diameter Range | 26-50mm | 26-50mm | 26-50mm | 26-50mm | 51-100mm |
| Length Range | 11-25mm | 11-25mm | 11-25mm | 11-25mm | 26-50mm |
| Shore Hardness | 45 | 45 | 70 | 70 | 45 |
| Thread | M10 | M10 | M8 | M10 | M12 |
| Show More | |||||
A. The Male Flat Buffer 4020MFB23-70 is rated to a maximum load of 333.5 kg with a deflection of 5.0 mm, giving it the highest load capacity and least movement in the 40x20 mm flat buffer family.
A. The buffer body measures 40 mm diameter by 20 mm height. The male stud is M8 with a length of 23 mm.
A. The 70 Shore A grade is designed for heavier loads, repeated shock and impact cycles, and applications where the component must act as a positive restraint or end-stop with minimal deflection. Softer grades such as 45 Shore A give greater deflection and better vibration isolation at lower loads. Choose 70 Shore A where load-bearing capacity and positional control take priority over isolation performance.
A. Source applications include construction equipment, agricultural machinery, commercial vehicles, industrial machinery, elevators, and power-generation equipment. The male flat buffer design is also used in marine, railway and mass transit, automotive, and military and defence environments.
A. The rubber-to-metal bonded element absorbs and dissipates energy on impact, reducing the force transmitted to the surrounding structure. It can cushion a secondary moving component, act as an elastic end-stop, or provide direct contact vibration damping between two surfaces.
A. Yes. The 40x20 mm Male Flat Buffer is available in 45 Shore A (4020MFB23-45) and 60 Shore A (4020MFB23-60) for lighter-duty or general-purpose applications. Additional geometries in the Male Flat Buffer range include 4020MFB25-70, 0808MFB06, 100100MFB44, 10030MFB41, 10040MFB44, 10050MFB41, and 10055MFB44.
A. Yes — stainless steel metalwork and oil-resistant or high-temperature rubber compounds are available on request, as are additional and custom sizes.
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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