Retén SO
El perfil SC es un retén radial, para sellado de eje, compuesto por una sola jaula de metal con un revestimiento de goma y un labio primario obturador con muelle integrado. El recubrimiento de goma se consigue por inyección.
- Good static sealing.
- Compensation of different thermal expansion.
- Reduced risk of fretting corrosion.
- A higher surface roughness of the bore is allowed.
- Installation in split housings.
- Recubrimiento de goma por inyección
See our guía de instalación de retenes 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 Box
AISI 1060-90 - AISI 304 - AISI 316
Pier
AISI 1060-90 - AISI 302 - AISI 304 - AISI 316
| MANUFACTURER | EQUIVALENCE |
|---|---|
|
SIMRIT |
BA |
|
STEFA |
CB |
|
SKF |
HMS5 |
|
PAULSTRA |
IE |
|
NATIONAL |
33 |
TOLERANCES FOR THE OUTSIDE DIAMETER OF THE OIL SEAL
| Housing diameter | Metal cage | Elastomeric coating | Lace |
|---|---|---|---|
| ≤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.≤630.0 | +0.23/ +0.35 | +0.35/ +0.65 | +0.40/ +0.75 |
Seal bore tolerance (Ød)
When not under pressure, the inside diameter of the sealing lip is always smaller than the shaft diameter. The difference between the two dimensions is known as interference or pre-fitting. Depending on the shaft size, the sealing lip diameter is estimated to be between 0.8 mm and 3.5 mm smaller. It will depend on the setting chosen by each manufacturer.
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