ID and FD Fans – Keep the Air Flowing, Keep the Bearings Protected

ID and FD Fans – Keep the Air Flowing, Keep the Bearings Protected

April 06 2026

Introduction

In process industries such as cement, power, steel, and chemicals, induced draft (ID) and forced draft (FD) fans are critical for maintaining controlled airflow, combustion efficiency, and process stability. The ID Fan and FD Fan play complementary roles—FD fans supply combustion air, while ID fans extract flue gases and maintain negative pressure within the system. Within sectors like the Power generation industry and cement manufacturing, these fans operate continuously, making their reliability essential for uninterrupted plant operation.

Given that ID/FD fans are integral to process control and environmental compliance, lubrication becomes a key enabler of both operational continuity and efficiency.

This case study demonstrates how a technically engineered lubrication solution enhances bearing performance, mitigates temperature and contamination challenges, and ensures reliable, energy-efficient operation of ID and FD fan systems in demanding industrial environments

Challenge

  • Excess friction leads to a temperature rise
  • Reduced efficiency & higher power consumption
  • Grease hardening & oxidation
  • Poor lubrication leads to increased vibrations & noise

Expectation

  • Low friction for high-speed continuous operation
  • Excellent thermal and oxidation stability
  • Strong resistance to dust, fly ash, and contaminants
  • Maintains consistent lubrication film

Recommendation

MOSIL SN 5120 ( Synthetic Based ), MOSIL GM 400s ( Mineral Based )

Application Benefits

  • Excellent resistance to oxidation and grease hardening
  • Resistant to dust, fly ash, and industrial contaminants
  • Reduced noise and vibration levels
  • Minimal grease leakage and improved sealing performance
  • Lower energy consumption and improved efficiency
  • Extended re-lubrication intervals

Industry Segment: MRO

Equipment: Induced Draft & Forced Draft Fans

Application: ID/FD Fan Bearing Greasing

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