How to choose the appropriate lubricant for fertilizer belt conveyors? Proper lubrication can reduce equipment wear and extend service life. The core conclusion is: Selection should be based on equipment operating conditions (load, temperature, environment) and component type, combined with the lubricants viscosity, resistance to contamination, and rust prevention properties. Priority should be given to matching the recommended model in the equipment manual.

Core Selection Criteria

Matched component types: Select gear oil or circulating oil for drive motors and reducers, and choose grease (primarily lithium-based or calcium-based) for roller/roller bearings.

Adapt to working conditions and loads: For components under heavy loads and high-speed operation (such as high-power gear reducers), select high-viscosity lubricating oil; for lightly loaded and low-speed components, choose low-viscosity oil to ensure adequate lubrication coverage.

Adapt to environmental conditions: For humid or dust-laden fertilizer environments, select oils with strong rust-resistant and anti-pollution properties to prevent oil quality degradation caused by moisture and dust.

Reference temperature range: For high-temperature environments (such as conveyors near dryers), select synthetic oil with excellent high-temperature stability. For normal-temperature conditions, mineral oil is sufficient.

Recommended Lubricants for Different Components

Gear reducer: Preferentially use industrial gear oil (e.g., No. 220, No. 320), extreme pressure and anti-wear type, capable of withstanding high-pressure friction during gear meshing to prevent tooth surface wear.

Motor bearings: Use high-temperature lithium-based grease (temperature resistance: -20°C to 120°C), with moderate fluidity, to prevent loss due to motor heating.

Roller/Idler Bearing: Use general-purpose lithium-based grease or calcium-based grease, which offers excellent dust resistance and waterproofing to prevent fertilizer particles and moisture from entering the bearing.

Key Considerations

Strictly follow the lubricant recommendations in the equipment manual, and avoid arbitrarily mixing lubricants from different brands or types.

Avoid selecting lubricants with excessively high viscosity, as this increases operational resistance and energy consumption; conversely, excessively low viscosity fails to form an effective oil film, rendering lubrication ineffective.