SEAL SBC

The SBC profile is a radial shaft seal designed for shaft sealing applications. It consists of a single metal case partially covered with a rubber coating on the outer surface, and a primary sealing lip with an integrated spring.

CHARACTERISTICS
  • Superior radial stiffness, especially for large diameters
  • Good assembly stability to prevent rebound effect
  • Good static sealing.
  • Good compensation for thermal expansion
  • Good heat transfer
  • Sealing for low- and high-viscosity fluids
  • Modern primary sealing lip with low radial forces
  • Design that provides a metal-to-metal press fit and the ability to compensate for rough or worn housings

See our Installation guide for oil seals to perform a correct installation of the seal.

ø ºC bar m/s
10-790 mm
-55ºC/225ºC
≤0.3 bar
≤10 m/s
MATERIALS

Elastomer

    NBR 70-75 Shore A

    FKM 75-80 Shore A

    VMQ 70-75 Shore A

    ACM 70-75 Shore A

    EPDM 70-75 Shore A

    HNBR 70-75 Shore A

Metal casing

AISI 1060-90 - AISI 304 - AISI 316

Spring

AISI 1060-90 - AISI 302 - AISI 304 - AISI 316

MANUFACTURER EQUIVALENCE
PAULSTRA
ME
TOLERANCES FOR THE OUTSIDE DIAMETER OF THE OIL SEAL
Diámetro del alojamientoJaula de metalRevestimiento elastoméricoEncaje
≤ 50.0+0.10 / +0.20+0.15 / +0.30+0.20 / +0.40
>50.0 ≤80.0+0.13 / +0.23+0.20 / +0.35+0.25 / +0.45
>80.0 ≤120.0+0.15 / +0.25+0.20 / +0.35+0.25 / +0.45
>120.0 ≤180.0+0.18 / +0.28+0.25 / +0.45+0.30 / +0.55
>180.0 ≤300.0+0.20 / +0.30+0.25 / +0.45+0.30 / +0.55
>300.0 ≤500.0+0.23 / +0.35+0.30 / +0.55+0.35 / +0.65
>500.0 ≤630.0+0.23 / +0.35+0.35 / +0.65+0.40 / +0.75
TOLERANCE FOR THE INNER DIAMETER OF THE SEAL

The inner diameter of the sealing lip is always smaller than the shaft diameter. Depending on the shaft size, the sealing lip diameter is generally between 0.8 and 3.5 mm smaller than the shaft diameter.

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