كتاب Rolling Bearing Lubrication

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Rolling Bearing Lubrication

ويتناول الموضوعات الأتية :

1 Lubricant in Rolling Bearings 3
1.1 Functions of the Lubricant in Rolling Bearings 3
1.1.1 The Different Lubricating Conditions in Rolling
Bearings 3
1.1.2 Lubricating Film with Oil Lubrication 4
1.1.3 Influence of the Lubricating Film and Cleanliness
on the Attainable Bearing Life 6
1.1.4 Lubricating Film with Grease Lubrication 12
1.1.5 Lubricant Layers with Dry Lubrication 13
1.2 Calculation of the Frictional Moment 14
1.3 Operating Temperature 18
2 Lubrication System 19
2.1 Grease Lubrication 19
2.2 Oil Lubrication 19
2.3 Dry Lubrication 19
2.4 Selection of Lubrication System 19
2.5 Examples of the Different Lubrication Systems 21
2.5.1 Central Lubricating System 21
2.5.2 Oil Circulation System 22
2.5.3 Oil Mist Lubrication System 22
2.5.4 Oil-Air Lubrication System 22
2.5.5 Oil and Grease Spray Lubrication 22
3. Lubricant Selection 24
3.1 Selection of Suitable Greases 27
3.1.1 Grease Stressing by Load and Speed 27
3.1.2 Running Properties 28
3.1.3 Special Operating Conditions and Environmental
Influences 28
3.2 Selection of Suitable Oils 30
3.2.1 Recommended Oil Viscosity 30
3.2.2 Oil Selection According to Operating Conditions 31
3.2.3 Oil Selection According to Oil Properties 31
3.3 Selection of Dry Lubricants 33
3.4 Quickly Biodegradable Lubricants 33
4 Lubricant Supply 34
4.1 Grease Supply 34
4.1.1 Lubricating Equipment 34
4.1.2 Initial Grease Charge and Grease Renewal 34
4.1.3 Grease Service Life 35
4.1.4 Lubrication Intervals 35
4.1.5 Relubrication, Relubrication Intervals ............... 36
4.1.6 Examples of Grease Lubrication 40
4.2 Oil Supply 43
4.2.1 Lubricating Equipment 43
4.2.2 Oil Sump Lubrication 43
4.2.3 Circulating Lubrication with Average and
Above Average Oil Volumes 44
4.2.4 Throwaway Lubrication 47
4.2.5 Examples of Oil Lubrication 49
4.3 Dry Lubricant Application 52
FAG 2
5 Damage Due to Imperfect Lubrication 52
5.1 Contaminants in the Lubricant 52
5.1.1 Solid Foreign Particles 54
5.1.2 How to Reduce the Concentration of Foreign
Particles 54
5.1.3 Oil Filters 54
5.1.4 Liquid Contaminants 55
5.2 Cleaning Contaminated Rolling Bearings 55
5.3 Prevention and Diagnosis of Incipient Bearing
Damage by Monitoring 56
6 Glossary of Terms 57

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