Suspension Bush - Inner Dia 16mm, Outer Dia 47.6mm, L 50.8mm - ECC1270-45

Compact and precisely engineered for installations where maximum vibration isolation takes priority, the ECC1270-45-45 is a 16 mm inner-diameter eccentric bush bonded in 45 Shore A rubber, the softest grade in this geometry. And is built to give the greatest deflection and most effective low-frequency isolation across lighter, sensitive equipment and linkage applications. With a stiffness of 675 N/mm in primary loading (F2 stiffness 1,350 N/mm) and a maximum deflection of 2 mm under F1 loading, this bush is sized to absorb vibration energy where compliance matters more than load restraint, accommodating a maximum load of 140 kg. Rubber-to-metal bonded construction locks a rubber element between inner and outer metal sleeves to create a durable, maintenance-free assembly that requires no lubrication. The eccentric geometry allows for adjustment and alignment during installation, which suits pivot bearings, mechanical linkages, and cab mount positions where precise setting of the neutral position is required. The 45 Shore A hardness produces a softer, more pliable rubber that yields greater movement under dynamic load, making it the grade of choice when the priority is protecting sensitive components or improving operator comfort rather than maximising load capacity. With outer dimensions of B 47.6 mm, C 50.8 mm and D 63.5 mm, and a flange height E of 7.1 mm, this bush fits compact mounting positions across construction and off-highway machinery, agricultural equipment, power generation plant, marine installations, railway and mass transit vehicles, and automotive and military applications.

Eccentric Bushes are manufactured from two metal sleeves which are eccentrically offset in the radial direction. This offset allows for a larger proportion of the rubber section to be orientated in the normal direction of load, allowing for relatively large radial deflections to be achieved, whilst maintaining excellent motional control characteristics.

Eccentric bushes are robust in design, fail-safe, and suitable for ROPS and FOPS cabs (subject to approval).

Advantages:

• Excellent Vibration Reduction
• Robust Design – Ideal for Transit Shock
• ROPS & FOPS
• Fail Safe

Options Include (Refer to the diagram in the product image):

• Inner Diameter (d): 16-43.7mm
• Outer Diameter (D): 47.6-101.6mm
• Rubber Body Length (A): 50.8-63.5mm
• Overall Length (B): 63.5-72.4mm
• Sleeve Projection (E): 7.1 – 9.5mm
• Radial Stiffness (R1): 675-1300 N/mm
• Max Deflection: 2-3.5mm
• Max Load: 140-465 Kg
• Axial Stiffness (R2): 1350-2200 N/mm

Applications:

• Cab Mountings - Used under cab structures to absorb vibration, improve operator comfort, and allow smooth, controlled cab tilting movement.
• Engine Mountings -Fitted between engine and chassis to isolate vibration, reduce noise, and maintain stable engine alignment during operation.
• Earth Moving Vehicles - Used in boom pivots and chassis joints to cushion heavy impacts and stabilise machinery during demanding construction work.
• Agricultural Vehicles - Installed in tractor linkages and cab mounts to reduce vibration, improve ride comfort, and protect implements on rough terrain.

Key Feature:

• Covered by a 6-month warranty, ensuring dependable performance in demanding automotive and industrial operating conditions.
• Inner Diameter (d) 16mm and Outer Diameter (D) 47.6mm ensure precise fitment and controlled eccentric alignment.
• Rubber Body Length (A) 50.8mm and Overall Length (B) 63.5mm support stable installation and effective vibration isolation.
• Sleeve Projection Length (E) 7.1mm enables accurate positioning and secure load transfer across mounting interfaces.
• Eccentric inner sleeve design allows controlled offset adjustment, improving alignment in suspension and machinery mounting applications.
• Fully bonded rubber-to-metal construction supports radial, axial, and torsional movement under high dynamic loads.
• Maintenance-free design eliminates lubrication requirements, ensuring long-term durability in vehicle and industrial environments.
• Commonly used in engine mounts, cab mountings, and suspension systems to reduce vibration and noise transmission.

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