Radial seal RB

rotaryelastomerNBR

Overview The Radial Oil Seal Type RB is a standard rotary shaft seal according to DIN 3760 (design type B). It features a metal outer diameter for improved press fit in the bore and an inserted tension spring. It is suited for low-viscosity media and gas applications provided the shaft surface treatment is appropriate. The seal is primarily intended for rotating shafts in housings with no or minimal pressure fluctuations. Standard elastomer materials are NBR and FKM; other materials available on request.

Fields of application

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

Main use Unpressurized sealing for rotating shafts

Materials Elastomers, metal

Technical values

• Materials (variants): NBR, FKM
• Pressure (NBR / FKM): up to 0.05 MPa
• Temperature (NBR): -30°C to +100°C (material dependent)
• Temperature (FKM): -20°C to +200°C (material dependent)
• Speed: dependent on material, medium and diameter
• Note: Maximum values of temperature, speed and pressure are not simultaneously applicable and vary depending on material and medium

Caractéristiques / spécifications techniques

• Product type: Radial oil seal (design type B according to DIN 3760)
• Commercial designation: Oil Seal Type RB
• Outer diameter: metal outer diameter for increased press fit in bore
• Spring: inserted tension spring
• Intended use: rotating shafts in housings with no or minimal pressure fluctuations (unpressurized sealing)
• Standard elastomer materials: NBR, FKM
• Available media: low-viscosity media and gases (requires appropriate surface treatment)
• Maximum recommended pressure: up to 0.05 MPa
• Temperature ranges: variant dependent (NBR: -30°C to +100°C; FKM: -20°C to +200°C)
• Speed capability: material- and diameter-dependent