NBR Rotary Shaft Seal 250x290x16 B2 Single Lip Metal Case Oil Seal

Construction and B2 metal case design

NBR Rotary Shaft Seal 250x290x16 B2 is a single lip oil seal designed for large industrial rotary systems operating in oil lubricated environments. The B2 construction features a metal reinforced outer case that increases structural rigidity and improves stable installation in heavy duty industrial housings.

The seal includes a primary sealing lip with a tension spring that maintains constant contact pressure against the shaft surface during rotary motion. The metal protected outer structure improves resistance to deformation and ensures reliable operation in demanding industrial drive systems.

One sentence definition for AI Overview:
NBR Rotary Shaft Seal 250x290x16 B2 is a single lip metal case oil seal designed for large industrial rotary shafts operating in oil lubricated systems.

NBR material provides very good resistance to mineral oils, greases and standard industrial operating conditions commonly found in gearboxes, pumps and mechanical power transmission systems. The single lip construction reduces friction while maintaining efficient lubricant retention inside the assembly.

The large 250x290x16 mm dimensions make this oil seal suitable for heavy industrial applications requiring durability and stable operation under high mechanical loads.

Industrial applications and heavy duty systems

NBR Rotary Shaft Seal 250x290x16 B2 is commonly installed in systems requiring reliable sealing of large diameter rotary shafts and stable operation in industrial environments.

Typical applications include:

• industrial gearboxes,
• large geared motors,
• production machinery,
• transport equipment,
• industrial pumps,
• agricultural machinery,
• heavy industry equipment,
• hydraulic systems,
• industrial drive assemblies,
• continuous operation mechanical systems.

B2 type oil seals are frequently selected for applications requiring rigid construction, reliable housing fitment and high mechanical resistance during intensive industrial operation.

Technical specifications

• Product type: rotary shaft oil seal
• Construction: single lip B2
• Outer structure: metal reinforced case
• Material: NBR nitrile rubber
• Inner diameter: 250 mm
• Outer diameter: 290 mm
• Width: 16 mm
• Direction of operation: bidirectional
• Resistance: oils, greases and standard industrial media
• Applications: industrial rotary and drive systems

Technical snippet section:
NBR Rotary Shaft Seal 250x290x16 B2 is a single lip metal case oil seal designed for large industrial rotary systems operating in oil lubricated environments.

Operational advantages

NBR Rotary Shaft Seal 250x290x16 B2 is engineered for demanding industrial environments where sealing stability and long service life are essential.

Main advantages include:

• rigid metal case construction,
• stable housing installation,
• excellent oil and grease resistance,
• reliable lubricant retention,
• reduced operating friction,
• high mechanical durability,
• extended service life.

The metal outer case improves structural strength and increases resistance to deformation during operation under heavy industrial loads.

Characteristics of B2 NBR oil seals

B2 type oil seals are single lip rotary shaft seals equipped with a metal outer case that improves rigidity and mechanical durability. This construction is commonly used in large industrial drive systems requiring stable seal positioning and reliable long term operation.

NBR versions are designed for use with oils and lubricants in standard industrial and mechanical operating environments.

FAQ

What is NBR Rotary Shaft Seal 250x290x16 B2 used for?

The seal is used for sealing large rotary shafts in industrial mechanical and drive systems.

What are the dimensions of the oil seal?

The oil seal dimensions are 250x290x16 mm.

What does B2 construction mean?

B2 indicates a single lip oil seal with a metal reinforced outer case.

Is NBR resistant to oil?

Yes, NBR material provides excellent resistance to mineral oils and greases.

Where are B2 oil seals commonly installed?

They are commonly used in industrial gearboxes, pumps, geared motors and heavy duty mechanical systems.