OEM HITACHI EX200-ALL MODELS BUCKET LINKAGE O-RING 145 X 10MM | Tonkee®

The 145 x 10mm O-ring used in the bucket linkage of all Hitachi EX200 models plays a critical role in sealing and maintaining hydraulic connections within the excavator's hydraulic system.

This O-ring is designed with precision to ensure a secure and leak-free connection between various hydraulic components. Its dimensions, 145mm in outer diameter and 10mm in thickness, are carefully chosen to match the specific requirements of the bucket linkage, ensuring a snug fit and effective sealing.

Material composition is a crucial consideration for any O-ring, especially in heavy-duty machinery like the Hitachi EX200 excavators. Typically, these O-rings are made from high-quality elastomers such as nitrile rubber (NBR) or fluorocarbon rubber (Viton). Nitrile rubber is known for its excellent resistance to hydraulic fluids, oils, and abrasion, making it a popular choice for O-rings in hydraulic systems. Fluorocarbon rubber, on the other hand, provides superior resistance to high temperatures and aggressive chemicals, ensuring the O-ring's durability in demanding operating conditions.

The O-ring's primary function within the bucket linkage is to create a watertight and airtight seal between hydraulic components, preventing fluid leakage and maintaining hydraulic pressure. This seal is vital for the efficient operation of the excavator, as hydraulic systems rely on precise pressure control for functions like digging, lifting, and dumping. Any leakage in the hydraulic system can lead to reduced performance, increased fuel consumption, and potential damage to the machinery.

In addition to sealing, the O-ring also acts as a cushion and provides some degree of vibration dampening.

The hydraulic systems in excavators generate significant pressure and can result in vibrations that, if left unchecked, could potentially damage components. The O-ring's elastic properties help absorb these vibrations, reducing wear and tear on the linkage and other connected parts.

Maintenance of the bucket linkage O-ring is essential to ensure the continued efficiency of the excavator. Regular inspection and replacement of O-rings that show signs of wear, damage, or deformation are critical. Neglecting this maintenance can lead to costly repairs, downtime, and reduced productivity on the construction site.

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