2025 Red Seal Heavy Duty Equipment Technician Complete Practice Exam

High-temperature bearing grease is specifically formulated to handle the unique demands of wheel bearings. These components are subject to significant heat and pressure during operation, and they require a lubricant that can maintain its properties under those conditions. High-temperature bearing grease is designed to provide excellent protection against wear, corrosion, and oxidation, which can occur due to the high temperatures generated by the friction of the wheel bearings during use.

Unlike light oil or motor oil, which may not adhere properly to the bearing surfaces and can lead to inadequate lubrication when temperatures rise, high-temperature bearing grease stays in place effectively, reducing the chance of component failure. Graphite powder, although useful for certain applications, does not provide the necessary lubrication properties required by wheel bearings, and could lead to increased wear and tear.

Therefore, high-temperature bearing grease is the ideal choice for lubricating wheel bearings, ensuring optimal performance and longevity of the equipment.