Sealed Slewing Bearing for Dusty Environment – Reliable Rotation in Harsh Conditions

In harsh industrial settings such as mining, cement plants, and construction sites, airborne dust and abrasive particles can severely damage exposed mechanical components. Therefore, using a sealed slewing bearing for dusty environments is essential to ensure long-term performance and reduce maintenance.

At FH, we specialize in producing dust-proof sealed slewing bearings designed for high-load rotation under challenging environmental conditions. With integrated sealing systems and robust materials, our bearings can operate reliably even in extremely polluted or sandy environments.

Why Choose Sealed Slewing Bearings?

First of all, our bearings are equipped with multi-lip or labyrinth seals that prevent the ingress of dust, mud, sand, and other contaminants.
Secondly, the bearings are greased for life, requiring minimal maintenance even under continuous operation.
In addition, the sealing system enhances corrosion resistance, especially in environments with moisture and chemical exposure.

These features make our sealed bearings ideal for:

• Mining machines (e.g. stacker reclaimers, rotary drills)
• Cement rotary platforms
• Tracked construction equipment
• Bulk material conveyors
• Desert or tunnel boring applications

Key Features:

• Diameter: 400mm–2500mm
• Gear type: internal, external, or non-gear
• Seal type: standard contact seal, labyrinth seal, or custom dust-proof seal
• Long lubrication life
• Optional anti-corrosion surface treatments

Moreover, our engineering team can provide custom sealing designs based on your specific environment and load profile.

Real-World Use Case

For instance, we supplied a 1600mm sealed slewing bearing to a cement silo system in Turkey, where airborne dust is present 24/7. The result was a 3x increase in service life compared to an unsealed bearing previously used.

How to Request a Quote Send us:

Operating environment description

• Required sealing level (e.g. IP54, IP65)
• Diameter and mounting dimensions
• Gear type or torque requirements

We’ll respond within 24 hours with a customized solution.