Lubrication of High-Speed High-Temperature Thrust Ball Bearings

Discussion: “The Importance of Spinning Friction in Thrust-Carrying Ball Bearings” (Reichenbach, G. S., 1960, ASME J. Basic Eng., 82, pp. 295–300)

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Accinelli, et al [5], showed that high-speed bearings, when operated with varieties of lubricants, showed this same sharp increase in friction with temperature. In fact, the silicone oil which had the most favorable viscosity characteristics for maintaining a hydrodynamic film in the face of rising temperature was the first to show the sharp friction increase resulting from desorption.Inasmuch as many ball bearings are forced by geometrical considerations to have a considerable amount of spinning, designers would be well advised to remember this when specifying lubricants.

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“…Accinelli, et al [5], showed that high-speed bearings, when operated with varieties of lubricants, showed this same sharp increase in friction with temperature. In fact, the silicone oil which had the most favorable viscosity characteristics for maintaining a hydrodynamic film in the face of rising temperature was the first to show the sharp friction increase resulting from desorption.…”

Polyphenyl Ethers as High-Temperature Radiation-Resistant Lubricants.

“…The polyphenyl ethers display satisfactory lubrication qualities in high-speed bearings; a 25-mm. bearing (9) COKING TENDENCIES…”