Oil seal RM

rotaryelastomerNBR

Product overview
The Radial Oil Seal Type RM is a rotary shaft seal with an elastomeric outer diameter and a waved profile similar to the RG type. The waved design simplifies axial installation and improves static tightness in the housing groove. The seal is manufactured without an inserted tension spring, providing reduced friction at the sealing lip.

Application
Designed for rotating shafts in housings for unpressurized applications. Typical elastomer materials are NBR and FKM; other compounds and metal variants are available on request. Suitable for a broad range of industrial environments where pressure loads are absent or minimal.

Fields of application

• static sealing
• dynamic sealing
• single-acting arrangements
• double-acting arrangements
• linear motion
• rotating shafts
• oscillating shafts

Main use
Unpressurized sealing for rotating shafts in housings and housings with axial groove features

Materials
Elastomers and metal components. Standard elastomers: NBR (nitrile rubber) and FKM (fluoroelastomer). Custom materials and coatings available on request.

Technical values

• Pressure: not suitable for pressurized applications
• Temperature range (NBR): -30°C to +100°C (material and compound dependent)
• Temperature range (FKM): -20°C to +200°C (material and compound dependent)
• Speed: depends on elastomer type and shaft diameter

Maximum values for temperature, speed and pressure are not simultaneously applicable; final limits depend on selected material, shaft diameter and media.

Technical specifications

• Type: Radial oil seal, Type RM
• Design: elastomeric outer diameter with waved profile, no inserted tension spring
• Intended use: unpressurized rotating shafts
• Standard materials: NBR, FKM (elastomers) and metal parts
• Temperature ranges: NBR -30°C to +100°C; FKM -20°C to +200°C (dependent on compound)
• Pressure rating: not for pressurized use
• Speed: dependent on material and shaft diameter