Radial shaft seal RC
rotaryelastomerNBR

Radial shaft seal - RC - ULMAN Dichtungstechnik GmbH - rotary / elastomer / NBR
Radial shaft seal - RC - ULMAN Dichtungstechnik GmbH - rotary / elastomer / NBR
Radial shaft seal - RC - ULMAN Dichtungstechnik GmbH - rotary / elastomer / NBR - image - 2
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Characteristics

Type
rotary
Material
metal, elastomer, NBR, FKM
Configuration
C
Application
for rotating shafts, for radial shaft
Fluid
oil, gas
Other characteristics
dynamic, single-acting
Temperature limit

Min.: -30 °C
(-22 °F)

Max.: 200 °C
(392 °F)

Pressure limit

Min.: 0 Pa
(0 psi)

Max.: 50,000 Pa
(7.3 psi)

Description

Product description
The Radial Oil Seal Type RC is a rotary shaft seal manufactured to DIN 3760, design C. It features a metal outer diameter with an additional metal insert to improve press fit in bores under rough mounting or operating conditions. The sealing lip is supported by an inserted tension spring. The design permits use with low-viscosity media and gas applications provided the mating sealing surface is machined accordingly. It is intended for rotating shafts in housings with no pressure or only minimal pressure fluctuations. Standard elastomer materials are NBR and FKM; other compounds available on request.

Fields of application
  • Static
  • Dynamic
  • Single acting
  • Double acting
  • Linear
  • Rotating
  • Oscillating

Main use
Unpressurized sealing for rotating shafts in housings with no or minimal pressure fluctuations

Materials
Elastomers and metal. Standard elastomer options: NBR, FKM (other materials on request)

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

Characteristics / technical specifications
  • Designation: Oil Seal Type RC (DIN 3760 design type C)
  • Metal outer diameter with additional metal insert for increased press fit
  • Inserted tension spring
  • Suitable for low-viscosity media and gas applications (requires appropriate surface treatment)
  • Intended use: unpressurized sealing for rotating shafts in housings with no or minimal pressure fluctuations
  • Standard elastomer materials: NBR, FKM (other materials available)
  • Pressure rating: up to 0.05 MPa (typical)
  • Temperature ranges (material dependent): NBR -30°C / +100°C; FKM -20°C / +200°C
  • Speed: dependent on material and shaft diameter

Exhibitions

Meet this supplier at the following exhibition(s):

Motek Messe Stuttgart
Motek Messe Stuttgart

6-08 Oct 2026 Stuttgart (Germany) Hall 4 - Stand 4420

  • More information

    Other ULMAN Dichtungstechnik GmbH products

    Rotary Seals

    *Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.