Limitations & Advantages of Greases

Limitations of Greases

1. Heat removal is not efficient

2. Dirt removal is difficult

• Grease is not re-circulated and filtered
• Purging may be helpful
• Cleanliness/lubrication frequency are key

3. Requires special equipment to apply

• More powerful pumps/largerlines
• Grease guns
• Automatic lubricators

Advantages of Greases

1. Provide good sealing

• Keeps dirt and water out
• Less dripping and splattering

2. Excellent for many high temperature operations

• Does not "thin out"

3. Ideal for intermittent operations

• Will not drain away when operation stops
• Speed changes, reverse direction

4. Load carrying ability

• High pressure / low speeds / shock loading
• Solid lubricant additives: moly, graphite

5. Aid to mechanical operation

6. Can be "fine-tuned" to an application