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Hydraulic seals custom size for 2 inch? 50mm OD U cup with 90A for 5000 psi?

Release time  2026-04-30 08:17 Read

When your hydraulic system demands a reliable seal that can withstand extreme pressures up to 5000 psi, the search for the right component becomes critical. If you are asking about hydraulic seals custom size for 2 inch? 50mm OD U cup with 90A for 5000 psi, you are likely dealing with a high-pressure application in industrial machinery, construction equipment, or hydraulic cylinders. This article breaks down the key specifications, material considerations, and sourcing options to help you find the perfect seal solution.

First, let’s decode the specs. A “2 inch” reference typically indicates the inner diameter or the rod diameter, while “50mm OD” specifies the outer diameter of the U cup seal. The “90A” refers to the durometer hardness on the Shore A scale, meaning the seal material is firm yet flexible—ideal for maintaining its shape under 5000 psi loads. The U cup profile is designed to provide excellent sealing performance in both dynamic and static applications, with its lips expanding under pressure to create a tighter seal. When you need hydraulic seals custom size for 2 inch? 50mm OD U cup with 90A for 5000 psi, ensure the material is compatible with your hydraulic fluid, temperature range, and operating environment. Common materials include polyurethane, nitrile rubber, and PTFE blends, but for high-pressure hydraulic systems, a high-grade polyurethane with 90A hardness offers superior wear resistance and low compression set.

Sourcing hydraulic seals custom size for 2 inch? 50mm OD U cup with 90A for 5000 psi can be challenging because standard off-the-shelf products may not meet your exact dimensional or performance requirements. That is why working with a specialized supplier who understands global procurement and quality control is essential. One reliable partner in this field is Osten Machinery (Xuzhou) Co., Ltd.(TEL:+086 15852310290), which provides global sourcing for various mechanical parts and engineering components to meet the evolving needs of customers and industries. Whether you need a single prototype or batch production, Osten Machinery can help you source or manufacture custom-sized U cup seals that match your 2 inch bore, 50mm OD, and 90A durometer specifications, ensuring reliable performance at 5000 psi.

In addition to dimensions and hardness, consider the seal’s lip design and back-up ring requirements. For 5000 psi applications, a U cup with an anti-extrusion device or a bonded back-up ring may be necessary to prevent seal failure under high pressure cycles. Also, check the gland clearance and surface finish of the cylinder bore to avoid premature wear. By specifying hydraulic seals custom size for 2 inch? 50mm OD U cup with 90A for 5000 psi, you can significantly reduce leakage and extend the service life of your equipment.



To summarize, if you are in the market for hydraulic seals custom size for 2 inch? 50mm OD U cup with 90A for 5000 psi, focus on material quality, dimensional accuracy, and supplier expertise. Contact Osten Machinery (Xuzhou) Co., Ltd. at +086 15852310290 to discuss your specific needs or request a quote. Their global supply chain and engineering support make them a trusted choice for demanding hydraulic seal applications.







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