Molykote EP Grease for Machine Chuck Lubrication and Press-Fit Assembly Extreme Pressure Grease
Molykote EP Grease is an extreme-pressure grease containing molybdenum disulfide (MoS2), formulated with mineral oil and lithium soap thickener. It appears grayish-black and is specifically designed for high-load, boundary lubrication conditions, offering excellent adhesion and high load-carrying capacity on metal surfaces.
| Property | Test Standard | Unit | Typical Value |
|---|---|---|---|
| Appearance | Visual | Color | Grayish black |
| Temperature Range | – | °C | -30 to 150 |
| Penetration (Worked 60) | JIS K 2220 | – | 285 |
| Dropping Point | JIS K 2220 | °C | 182 |
| Coefficient of Friction | LFW-4 press-fit test | – | 0.2 |
| Base Oil | – | Type | Mineral Oil |
| Thickener | – | Type | Lithium Soap |
| Solid Additive | – | Type | Molybdenum Disulfide (MoS2) |
This product is particularly suitable for solving friction and wear problems of metal components under high pressure. Its low coefficient of friction effectively prevents seizing during assembly or operation, providing stable lubrication protection and extending equipment service life.
Molykote EP Grease offers excellent extreme-pressure performance, primarily due to its molybdenum disulfide solid lubricant content. This component forms a robust lubricating film on metal surfaces, providing protection even under extreme pressure where the oil film might break down, preventing galling and fretting wear. Furthermore, its wide operating temperature range (-30℃ to 150℃) makes it adaptable to most industrial environments.
Molykote EP Grease is widely used in industrial manufacturing and maintenance. Typical applications include lubrication of machine tool chucks (e.g., lathe, grinding machine chucks) to ensure stable clamping force and prevent workpiece slippage; on assembly lines, it is commonly used for the press-fit process of bearings, bushings, gears, and splines, significantly reducing assembly pressure and avoiding component damage; additionally, it is suitable for lubricating heavily loaded parts such as joints and linkage pins in heavy machinery.
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