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Some characteristics of rolling-element bearings under oscillating conditions. Part 1: theory and rig designSome characteristics are presented for taper-roller bearings with a clearance fit. The stiffness and damping in the joints between raceways and housing/shaft are shown to be significant. The other major parameters investigated are preload, temperature, lubricant viscosity, excitation frequency, excitation amplitude, and rotational speed. The relevance of the measured characteristics to the design of spindles with high dynamic stiffness is discussed. Also the significance of radial and tilt characteristics is compared.
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Some characteristics of rolling-element bearings under oscillating conditions. Part 2: experimental results for interference-fitted taper-roller bearingsSome stiffness and damping characteristics are presented for taper-roller bearings with interference fits. The major parameters investigated were preload, temperature, lubricant viscosity, excitation frequency, excitation amplitude, and rotational speed. The prediction, based on a model of the bearings, that stiffness and damping would effectively be independent of oil viscosity was confirmed.
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Some characteristics of rolling-element bearings under oscillating conditions. Part 3: experimental results for clearance-fitted taper-roller bearings and their relevance to the design of spindles with high dynamic stiffnessSome characteristics are presented for taper-roller bearings with a clearance fit. The stiffness and damping in the joints between raceways and housing/shaft are shown to be significant. The other major parameters investigated are preload, temperature, lubricant viscosity, excitation frequency, excitation amplitude, and rotational speed. The relevance of the measured characteristics to the design of spindles with high dynamic stiffness is discussed. Also the significance of radial and tilt characteristics is compared.