The performance of high-temperature grease depends not only on its heat resistance but also, to a significant extent, on its base oil, thickener, oxidation resistance, and lubrication lifespan. Understanding these key characteristics helps in selecting the appropriate grease for bearings, electric motors, and industrial equipment.

The primary difference between synthetic and mineral greases lies in the type of base oil used. Synthetic greases typically offer a wider operating temperature range and superior low-temperature or oxidation stability, though actual performance depends on the specific formulation and application conditions.

The NLGI grade is used to indicate the consistency of grease, ranging from 000 to 6. The smaller the number, the softer the grease and the higher its fluidity. The correct selection of the NLGI grade helps to improve grease supply, seal retention and equipment lubrication effects.

Silicone greases offer excellent temperature resistance, electrical insulation, and moisture-proof properties; in the electronics industry, they are commonly used for heat dissipation, insulation, sealing, and connector protection. Shin-Etsu offers a wide range of electronic-grade silicone greases and silicone-based lubricants.

Polyurea grease features excellent high-temperature stability, oxidation resistance, and a long service life; it is commonly used for electric motor bearings, fans, pumps, and high-temperature industrial equipment.

Lithium-based greases and complex lithium-based greases differ in terms of temperature resistance, mechanical stability, and water resistance, making them suitable for different industrial equipment and operating conditions.

There are significant differences between PAO-based and mineral oil-based greases regarding temperature performance, oxidative stability, service life, and application areas; this article outlines the characteristics of both and methods for selecting the appropriate grease.

PFPE greases are characterized by high-temperature resistance, chemical corrosion resistance, low volatility, and long service life, and are widely used in the semiconductor, vacuum equipment, aerospace, and high-end industrial sectors.

Issues such as spindle overheating, abnormal bearing noise, and grease leakage in CNC equipment may be related to the choice of grease, the quantity applied, or the re-greasing interval. This article outlines common faults and troubleshooting methods.

While low-cost grease can reduce procurement expenses, a mismatch between its performance and the equipment's operating conditions may lead to increased costs associated with regreasing, maintenance, downtime, and bearing replacement.