O-Ring 150x5.5 mm NBR

Applications

The O-Ring 150x5.5 mm NBR 70 Shore is designed for industrial sealing tasks where a larger inner diameter and reliable material performance are required. With a 150 mm inner diameter and 5.5 mm cross-section, this large-ID rubber gasket efficiently serves hydraulic cylinders, pneumatic systems, bearing housings, large-scale flow equipment and static sealing joints. The nitrile-butadiene rubber (NBR) compound with 70 Shore A hardness ensures excellent chemical resistance, oil compatibility and long service life in demanding industrial environments.

Advantages

• High durability and chemical resistance - NBR (nitrile-butadiene rubber) is widely used for its strength in oil, grease and hydrocarbon environments.

• Large dimension for broad applications - The 150 mm ID and 5.5 mm cross-section allow single-ring sealing of components previously requiring multiple seals.

• Optimised hardness for industrial sealing - At 70 Shore A the material strikes a balance between flexibility and strength, enabling reliable static sealing and moderate dynamic use.

• Streamlined B2B procurement - Standard large-ID size integrates easily into inventory management, supports bulk delivery and reduces stock complexity for maintenance, OEM or service departments.

Technical Data & Specification Summary

• Material: Nitrile Rubber (NBR)

• Hardness: 70 Shore A

• Inner Diameter (ID): 150 mm

• Cross-Section (CS): 5.5 mm

• Operating Temperature Range: typically -30 °C to +100 °C (short-term up to +120 °C)

• Suitable Media: Mineral oil-based oils and greases, aliphatic hydrocarbons, hydraulic fluids H/H-L/H-LP, some silicone oils and greases.

• Key Applications: Large-bore sealing rings, hydraulic/pneumatic assemblies, bearing and pump housings, industrial fluid systems.

• Procurement Benefits: Larger size reduces inventory counts, simplifies part numbers, supports fast replacement and efficient logistics.

Why Choose this O-Ring?

Selecting the O-Ring 150x5.5 mm NBR 70 Shore gives you a high-performance, large-ID sealing solution built for industrial durability. Whether used in hydraulic systems, pneumatic actuators or any application requiring a large bore rubber seal, this component offers strong resistance to oil and chemical attack, compact inventory management and cost-effective service readiness. Keywords naturally covered include “O-Ring 150x5.5”, “rubber seal NBR 70 Shore”, “industrial sealing ring large ID”, “hydraulic gasket 150 mm”, “technical sealing component NBR”, supporting search visibility and AI indexing for global industrial procurement.

FAQ

Q1: What do the dimensions “150x5.5 mm” signify?
A1: They denote the inner diameter of the seal (150 mm) and the cross-section (thickness) of the ring (5.5 mm).

Q2: Why is NBR 70 Shore used for this O-Ring?
A2: NBR with 70 Shore A hardness provides a robust balance of elasticity and strength, delivering reliable sealing under exposure to oils, greases and moderate hydrocarbon media.

Q3: Can this O-Ring be used in hydraulic or pneumatic systems?
A3: Yes - its size and material specification make it ideal for large bore hydraulic cylinders, pneumatic actuators, bearing housings and other heavy industrial assemblies.

Q4: What procurement advantages does the large-ID format offer?
A4: A single large-ID ring replaces multiple smaller rings, reduces SKU variety, simplifies inventory and accelerates service turnaround.

Q5: Are there any limitations regarding temperature or media?
A5: While NBR is effective for mineral oils and many fluids within -30 °C to +100 °C (short-term +120 °C), it is less suitable for prolonged UV/ozone exposure, high aromatic fuels or brake fluids based on glycol.