SEAL SBCW
The SBCW profile is a radial shaft seal designed for shaft sealing applications. It consists of a single metal case partially covered with a rubber layer on the outer surface, and a primary sealing lip with an integrated spring. The sealing lip features bidirectional grooves, allowing it to follow the shaft’s rotation in both directions and effectively control lubricant expulsion.
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
- Sealing lip with bidirectional helix-shaped grooves
See our gInstallation guide for oil seals to perform a correct installation of the seal.
| ø | ºC | bar | m/s |
|---|---|---|---|
|
20-500 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
| SPECIAL |
|---|
TOLERANCES FOR THE OUTSIDE DIAMETER OF THE OIL SEAL
| Housing diameter | Metal cage | Elastomeric coating | Housing with grooves |
|---|---|---|---|
| ≤ 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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