Corrosion method of forklift bearings

Corrosion Methods of Forklift Bearings

Source: China Bearing Network | Date: November 3, 2013

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Forklift bearings are essential components in material handling equipment, and their performance directly affects the efficiency and safety of operations. However, these bearings can suffer from various forms of corrosion, which may lead to premature failure if not properly addressed. 1. **Fluid Corrosion** Fluid corrosion occurs when a liquid or fluid comes into contact with the bearing surface and exerts mechanical stress. This type of corrosion typically results in small, irregular scratches on the bearing's surface. The damage is often more noticeable in areas where lubrication is insufficient, leading to increased friction and wear over time. 2. **Electrical Corrosion** Electrical corrosion, also known as electrical discharge machining (EDM) damage, happens when there is an electrical current passing through the bearing. This can occur due to motor leakage or improper grounding. The electric current causes sparks between the rolling elements and raceways, resulting in small, pitted scars on the bearing surface. This type of damage is common in high-speed applications and can significantly reduce the bearing’s lifespan. 3. **Cavitation Corrosion** Cavitation occurs when bubbles form in the lubricating oil due to low-pressure areas within the oil film. As these bubbles move to high-pressure zones, they collapse rapidly, creating shock waves and high temperatures. These forces repeatedly impact the bearing surfaces, causing small pits and eventually leading to pitting corrosion. Heavy loads, high speeds, and frequent load changes increase the risk of cavitation in sliding bearings. To prevent corrosion in forklift bearings, regular maintenance and proper lubrication are crucial. Ensuring that the bearings are adequately protected against moisture, contaminants, and electrical currents can significantly extend their service life. It's also important to use high-quality lubricants and follow manufacturer guidelines for installation and operation. In addition to these preventive measures, monitoring the condition of the bearings through regular inspections can help identify early signs of corrosion before it leads to major failures. Early detection and timely intervention can save both time and money in the long run.
Recommended for you: - FAG Bearings: Common Usage in Aviation and Aircraft - TIMKEN Bearings: Common Types of Damage - NSK Bearing Protection: Criteria for Machining End Device and Disassembly This article is sourced from China Bearing Network. Please visit [http://www.chinabearing.net](http://www.chinabearing.net) for more information. Previous: SKF Rolling Bearing Stage Ball Bearing Classification Next: Simple Identification Method of Lubricant

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