Which bearings are suitable for humid and corrosive environments?

Bearings used in humid, wet, or corrosive environments (such as water, chemicals, salt spray, high moisture) need excellent corrosion resistance and water resistance.

The most suitable types are:

Stainless steel bearings (440C / 316 stainless steel)

Good rust and corrosion resistance, suitable for general humid conditions.

Ceramic bearings (silicon nitride, Si₃N₄)

Extremely high corrosion resistance, waterproof, rustproof, long service life.

Plastic / PTFE bearings

Light, chemical-resistant, waterproof, ideal for severely corrosive conditions.

Chrome steel bearings with special anti-corrosion coatings

Coated with anti-rust, anti-corrosion surface treatment for cost-effective protection.

Key features required:

Corrosion resistance

Waterproof & moisture resistance

Rust prevention

Chemical stability