Results 91 to 100 of about 38,585 (217)
On the torque and wear behavior of selected thin film MOS2 lubricated gimbal bearings [PDF]
During the thermal vacuum test phase of the GOES 7 spacecraft, the primary scan mirror system exhibited unacceptably high drive friction. The observed friction was found to correlate with small misalignments in the mirror structure and unavoidable loads ...
Bohner, John J., Conley, Peter L.
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The need is beboming more and more urgent for bearings operating at very high temperatures. But present-day liquid lubricants are temperature-limited owing to their characteristics，but solid lubricants are chemically more stable.
TESHIMA, Toshio, 豊島, 敏雄
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Evaluation of ball and roller bearings restored by grinding [PDF]
The restoration by grinding of those rolling element bearings which are currently being discarded at aircaft engine and transmission overhaul is considered.
Chen, S. M. +2 more
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RESEARCH ON THE AXIAL CARRYING CAPACITY OF ANGULAR CONTACT BALL BEARINGS BASED ON COMBINED LOADS
Jixie qiangdu, 2015 Aim at difficulty to calculate the angular contact ball bearings’ axial carrying capacity in combined loads,considering the different of every roller suffered load and the actual contact angle,using deformation coordination principle and Hertz contact ...
YAN Cheng +4 more
doaj
Design study for a magnetically supported reaction wheel [PDF]
Results are described of a study program in which the characteristics of a magnetically supported reaction wheel are defined. Tradeoff analyses are presented for the principal components, which are then combined in several reaction wheel design concepts.
Dendy, J., Sabnis, A., Stocking, G.
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Load-deflection relationships for different types of elliptical contacts such as those found in a ball bearing are developed. Simplified expressions that allow quick calculations of deformation to be made simply from a knowledge of the applied load, the ...
Dowson, Duncan, Hamrock, Bernard J.
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Surface topography, including the various physical methods of measuring surfaces, and the various lubrication regimes (hydrodynamic, elastohydrodynamic, boundary, and mixed) are discussed.
Dowson, D., Hamrock, B. J.
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Basic lubrication equations [PDF]
Lubricants, usually Newtonian fluids, are assumed to experience laminar flow. The basic equations used to describe the flow are the Navier-Stokes equation of motion.
Dowson, D., Hamrock, B. J.
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Study on the microstructural evolution mechanism of the angular contact ball bearing rings during the quenching and tempering process. [PDF]
Sci RepGu R, Tong Y, Wang Q, Chen L, Shang Z.
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Design of aircraft turbine fan drive gear transmission system [PDF]
The following basic types of gear reduction concepts were studied as being feasible power train systems for a low-bypass-ratio, single-spool, geared turbofan engine for general aircraft use: (1) single-stage external-internal reduction, (2) gears (offset
Dent, E., Hirsch, R. A., Peterson, V. W.
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