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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 |
Lighter loads and low-frequency vibration demand a mount that prioritises isolation over restraint, and that is precisely where the FB21-45 flanged bush is engineered to perform. Rated to a maximum load of 125 kg and built to Figure 2 geometry with a 70 mm outer diameter, 39 mm length, 19 mm bore, and 56 mm flange diameter, this 45 Shore A soft-grade component delivers the greatest deflection within the FB21 range, absorbing movement freely to protect sensitive equipment and the structures around it from transmitted vibration. Constructed with rubber bonded between inner and outer metal sleeves, the FB21-45 requires no lubrication and is fully maintenance-free, offering prolonged service life under dynamic loads. Soft-grade rubber at 45 Shore A gives the greatest deflection response of the range, making this bush the right choice where maximum vibration isolation takes priority and where loads are lighter or fluctuating rather than sustained and heavy. The rubber-to-metal bonded construction improves operator comfort and protects surrounding structures by absorbing and dissipating dynamic energy before it propagates. The FB21-45 is well suited to pivot bearings, mechanical linkages, and cab mounts in compact or sensitive installations, particularly across construction and off-highway, agricultural, marine, power generation, and railway and mass transit applications where lower-frequency isolation and compliance are more critical than high load-carrying stiffness. Military and defence applications also benefit from the soft grade's capacity for absorbing irregular shock inputs at modest load levels.
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.
| 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 | TB60 | TB65 | TBCBA28 | TBCBA33 | TB75 |
| Type | Bush | Bush | Bush | Bush | Bush |
| Size | 63mm | 63mm | 71.1mm | 83.8mm | 50.8mm |
| Deflection | 2 | 2 | 2.5 | 3 | 2.16 |
| Overall Height | 50.8mm | ||||
| Size Range | 51-100mm | 51-100mm | 51-100mm | 51-100mm | 51-100mm |
A. The FB21-45 is a Figure 2 flanged bush with a 70 mm outer diameter (A), 70 mm overall length (B), 39 mm rubber element length (C), 19 mm bore (D), 18.5 mm inner sleeve length (E), 56 mm flange diameter (F), and a 10 mm flange thickness (G). Maximum rated load is 125 kg.
A. The FB21-45 is manufactured in 45 Shore A rubber, which is the softest grade in the FB21 range. Softer grades give greater deflection under load and deliver better vibration isolation at lower frequencies, making this bush the correct choice where isolating sensitive equipment or lighter structures takes priority over high load-carrying stiffness.
A. The FB21-45 has a maximum rated load of 125 kg. It is designed for lighter or compact installations where isolation performance is more important than maximum load resistance. For heavier-duty requirements, the 60 Shore A (FB21-60) or 75 Shore A (FB21-75) variants carry higher loads with less deflection.
A. The FB21-45 suits pivot bearings, mechanical linkages, and cab mounts in industries including construction and off-highway, agriculture, marine, power generation, railway and mass transit, and military and defence. Its soft 45 Shore A grade makes it particularly appropriate for sensitive or compact installations where low-frequency vibration isolation is the primary requirement.
A. No. The rubber-to-metal bonded construction of the FB21-45 is maintenance-free and requires no lubrication, contributing to prolonged service life under dynamic loads.
A. Yes. Custom options including stainless steel metalwork and oil-resistant or high-temperature rubber compounds are available on request for the flanged bush range.
A. The FB21 geometry is also available in 60 Shore A (FB21-60) for general-purpose loads and 75 Shore A (FB21-75) for high-load or high-restraint duties. Alternative flanged bush configurations in different sizes and geometries include FB00, FB02, FB10, FB20, FB40, and FB41.
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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