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T-Bush 71.1mm - TBCBA28

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T-Bush 83.8mm - TBCBA33

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Technical Specification
PRODUCT NUMBER TBCBA28TB60TB65TBCBA33TB75
Type BushBushBushBushBush
Size 71.1mm63mm63mm83.8mm50.8mm
Deflection 2.52232.16
Overall Height 50.8mm
Size Range 51-100mm51-100mm51-100mm51-100mm51-100mm

Q 1. What is the maximum load rating for the FB21-60 Flanged Bush?

A. The FB21-60 is rated to a maximum load of 200 kg. It is built to Fig. 2 geometry with a 70 mm outer diameter and bonded in 60 Shore A medium rubber.

Q 2. What are the key dimensions of the FB21-60?

A. The principal dimensions are: A 70 mm, B 70 mm, C 39 mm, D 19 mm, E 18.5 mm, F 56 mm, and G 10 mm, to Fig. 2.

Q 3. Why choose the 60 Shore A grade rather than a softer or harder option?

A. The 60 Shore A medium grade balances vibration isolation with load support, making it the appropriate choice for general-purpose machinery mounting at moderate loads. Softer grades give greater deflection and better isolation at lower load; harder grades carry higher load with less movement. The 60 Shore A sits at the practical mid-point for mainstream industrial and vehicle applications.

Q 4. What types of loading can the FB21-60 accommodate?

A. The bush may be loaded in shear, compression, or a combination of both, making it suitable for pivot bearings, mechanical linkages, cab mounts, and engine mounts where load direction varies.

Q 5. Does the FB21-60 require lubrication or routine maintenance?

A. No. The rubber-to-metal bonded construction requires no lubrication and is maintenance free, which makes it well suited to installations where access is limited or service intervals are restricted.

Q 6. What industries and applications is the FB21-60 designed to serve?

A. The flanged bush is suitable for construction and off-highway equipment, agricultural machinery, power generation, marine installations, and railway and mass transit applications. Specific mounting positions include pivot bearings, cab mounts, engine mounts, and mechanical linkages.

Q 7. Are other Shore hardness grades or sizes available for this flanged bush geometry?

A. Yes. The FB21 family includes FB21-45 (45 Shore A, softer grade for greater deflection at lighter loads) and FB21-75 (75 Shore A, firmer grade for higher load capacity with reduced movement). The broader flanged bush range also includes FB00, FB02, FB10, FB20, FB40, and FB41 in complementary sizes and configurations.

Q 8. Are custom specifications available for the FB21-60?

A. Yes. Stainless steel metalwork, oil-resistant rubber, high-temperature rubber compounds, and additional or custom sizes are available on request.

Q 9. Can I ask questions about this product before ordering?

A. Yes — WhatsApp us on 07754 288583 with any questions about specifications, suitability, or compatibility.

Q 10. Can I ask questions about this product before ordering?

A. Yes — WhatsApp us on 07754 288583 with any questions about specifications, suitability, or compatibility.

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