By Piet M. Lugt
The definitive booklet at the technological know-how of grease lubrication for curler and needle bearings in commercial and automobile engineering.
Grease Lubrication in Rolling Bearings provides an outline of the prevailing wisdom at the a variety of facets of grease lubrication (including lubrication structures) and the state-of-the-art versions that exist this present day. The e-book experiences the actual and chemical points of grease lubrication, basically directed in the direction of lubrication of rolling bearings.
The first a part of the publication covers grease composition, homes and rheology, together with thermal and dynamics houses. Later chapters conceal the dynamics of greased bearings, together with grease existence, bearing lifestyles, reliability and trying out. the ultimate bankruptcy covers lubrications structures – the platforms that carry grease to the elements requiring lubrication.
Grease Lubrication in Rolling Bearings:
- Describes the underlying actual and chemical houses of grease.
- Discusses the influence of load, pace, temperature, bearing geometry, bearing fabrics and grease variety on bearing wear.
- Covers either bearing and grease functionality, together with thermo-mechanical growing old and checking out methodologies.
It is meant for researchers and engineers within the petro-chemical and bearing undefined, industries on the topic of this (e.g. wind turbine undefined, automobile undefined) and for program engineers. it's going to even be of curiosity for instructing in post-graduate courses.
Chapter 1 creation (pages 1–4):
Chapter 2 Lubrication Mechanisms (pages 5–21):
Chapter three Grease Composition and houses (pages 23–69): P.M. Lugt and D.M. Pallister
Chapter four Grease lifestyles in Rolling Bearings (pages 71–98):
Chapter five Lubricating Grease Rheology (pages 99–136):
Chapter 6 Grease and Base Oil movement (pages 137–155):
Chapter 7 Grease Bleeding (pages 157–170): P.M. Lugt and P. Baart
Chapter eight Grease getting older (pages 171–190): P.M. Lugt and D.M. Pallister
Chapter nine movie Thickness idea for Single Contacts (pages 191–226): P.M. Lugt, M.T. van Zoelen and C.H. Venner
Chapter 10 movie Thickness in Grease Lubricated Rolling Bearings (pages 227–243): P.M. Lugt, M.T. van Zoelen and C.H. Venner
Chapter eleven Grease Dynamics (pages 245–255):
Chapter 12 Reliability (pages 257–282): J.H. Tripp and P.M. Lugt
Chapter thirteen Grease Lubrication and Bearing lifestyles (pages 283–308): P.M. Lugt and A. Gabelli
Chapter 14 Grease Lubrication Mechanisms in Bearing Seals (pages 309–326): P.M. Lugt and P. Baart
Chapter 15 situation tracking and upkeep (pages 327–337):
Chapter sixteen Grease Qualification trying out (pages 339–375):
Chapter 17 Lubrication structures (pages 377–411): P.M. Lugt, R. Stockhammer and P. Conley
Chapter A features of Paraffinic Hydrocarbons (page 413):
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Extra resources for Grease Lubrication in Rolling Bearings
This capacity C is deﬁned as the load at which the fatigue life L 10 is equal to one million revolutions. This suggests that there is a relation to fatigue life, which is obviously not the case. It is only done for convenience to compare grease life to bearing life. 5 L 50 grease life and bearing life versus load for urea greases. n = 10 000 rpm, T = 150 ◦ C (grease life data from ). similar applies to P which is the equivalent load and which is calculated from the combined radial and axial load representing the same stress-state as in the case of a pure radially loaded bearing.
This means that under these conditions, grease is sheared into the contacts and into the cage pockets where it is overrolled and sheared and where oil is released. Hence, contrary to the lower speed, high load R2F test, the grease on the shields may not serve as an oil reservoir. Scarlett  described the ﬂow of grease in a ball bearing (1 3/4 inch bore, n dm = 176 000 mm rev/min) with an inner-ring guided brass machined cage and mentions the formation of ‘pads’ of grease adhering to the cage bore (‘under’ the cage).
The ﬂuid viscosity properties of the base oil largely determine the performance of grease lubricants. 2 Atomic force microscope image of unwashed lithium greases. , 2010 C Taylor and Francis Group. , 2009. C Springer. range of operating temperatures and Hertzian contact pressures. Preferably, base oil viscosity should also provide full ﬁlm lubrication over the range of speeds and temperatures. The physical properties of base oils that effect lubrication are measured by several criteria. Pour point values measure the minimum temperature where the base oil exhibits ﬂuidity.