What oil is used for ball mill bearing bushes?
Ball mills are key equipment in mining, building materials, metallurgy and other industries. The lubrication effect of their bearings directly affects the operating efficiency and life of the equipment. Choosing the right lubricant not only reduces wear, but also reduces energy consumption and maintenance costs. This article will combine the hot topics and hot content on the Internet in the past 10 days, conduct an in-depth analysis of the oil selection for ball mill bearings, and provide structured data for reference.
1. Lubrication requirements for ball mill bearings
Ball mill bearings usually work under conditions of high temperature, high load, low speed and heavy load, so they have high requirements on the viscosity, extreme pressure, oxidation resistance and anti-emulsification of lubricating oil. The following are the core indicators of bearing lubrication:
| index | Require | illustrate |
|---|---|---|
| Viscosity (40℃) | 150-460cSt | High viscosity oil can form a stable oil film |
| extreme pressure | ≥392N (four-ball method) | Prevent metal contact wear |
| Flash point | ≥220℃ | High temperature resistance |
| Antioxidant | Oxidation stability test passed | Extend oil change intervals |
2. Comparison of commonly used lubricating oil types
According to industry practice and recent hot discussions, commonly used lubricants for ball mill bearings mainly include the following three categories:
| Oil type | advantage | shortcoming | Applicable scenarios |
|---|---|---|---|
| mineral oil | Low cost and easy to obtain | Easy to oxidize at high temperatures and have short lifespan | Small and medium ball mill |
| Synthetic hydrocarbon oil | Strong oxidation resistance and long life | higher price | Large heavy-duty equipment |
| Semi-synthetic oil | Balancing performance and cost | Extreme pressure resistance is slightly lower | Medium load condition |
3. Recent popular brands and user feedback
Combining industry discussions and e-commerce platform data in the past 10 days, the following brands of lubricants are highly recommended due to their stable performance:
| brand | Product model | User rating (5-point scale) | Hot comments |
|---|---|---|---|
| Shell | Omala S4 320 | 4.7 | Good high temperature stability |
| Mobil | Mobilgear 600 XP 460 | 4.8 | Outstanding wear resistance |
| Great Wall | L-CKD 320 | 4.5 | High cost performance |
4. Things to note when choosing oil
1.Working condition matching:Select the viscosity grade according to the load, rotation speed and ambient temperature of the ball mill. 2.Regular testing: It is recommended to take samples every 3 months to analyze the degree of oil contamination and aging. 3.Brand licensing: Avoid using low-priced and low-quality oil from informal channels to avoid equipment damage. 4.Oil change interval: Mineral oil is usually replaced every 6-12 months, synthetic oil can be extended to 18-24 months.
5. Conclusion
Taken together, the oil used for ball mill bearing bushes needs to take into account both performance and economy. Synthetic hydrocarbon oil is currently the mainstream choice for large equipment, while mineral oil is still suitable for small and medium-sized low-load scenarios. Users can refer to the data in this article based on actual needs and make decisions based on the equipment manufacturer's recommendations to ensure efficient and stable operation of the ball mill.
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