Understanding SKF Bearing Seals: RS, 2RS, ZZ, and Open Types

Open type: Used in clean, lubricated environments
ZZ (metal shields): For dry, dust-free conditions
RS (single lip seal): Good protection against moisture and dirt
2RS (double lip seals): Maximum protection in harsh environmentsSKF sealed bearings come pre-greased, reducing maintenance and improving reliability in heavy-duty applications.

Sealing design protects bearings from dust, moisture, and contamination.