Radial seal RN

rotaryelastomerNBR

Product description
The Radial Oil Seal RN is a rotary shaft seal designed with a metal outer diameter to ensure an increased press fit in the bore. The seal is manufactured without an inserted tension spring, providing reduced friction at the sealing lip. It is intended for unpressurised rotating-shaft applications and can be used with low-viscosity fluids and gases when mating surfaces are machined to suitable tolerances. Standard elastomer options include NBR and FKM; other materials are available on request.

Fields of application

• static
• dynamic
• single acting
• double acting
• linear
• rotating
• oscillating

Main use

• Unpressurised sealing for rotating shafts

Materials (examples)

• Elastomers: NBR, FKM
• Metal: outer diameter (press-fit)

Technical values

• Materials (variants): NBR, FKM
• NBR — Temperature range: -30°C to +100°C (material dependent); Pressure: not applicable; Speed: depends on material and shaft diameter
• FKM — Temperature range: -20°C to +200°C (material dependent); Pressure: not applicable; Speed: depends on material and shaft diameter

Technical characteristics / specifications

• Metal outer diameter for increased press fit in the bore
• Design without an inserted tension spring → lower friction at the sealing lip
• Suitable for rotating shafts in unpressurised housings
• Compatible with low-viscosity fluids and gases when mating surfaces are machined appropriately
• Standard elastomer materials: NBR and FKM; additional material options available
• Temperature ranges depend on elastomer choice (examples: NBR -30°C to +100°C; FKM -20°C to +200°C)
• Not intended for pressurised applications
• Maximum permissible speed depends on material and shaft diameter