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The ball groove measurement system was designed specifically to measure the dimensions of the six ball grooves in the outer race.
A formulation for ball bar measurement is derived from kinematic analysis to reveal the relationship between sensitivity direction and setup position of ball bar.
This paper presents a new spherical deviation measurement method to evaluate the volumetric accuracy of five-axis machine tools based on double ball-bar measurements.
In the present study on forged out race CV joints, a ball groove measurement system that uses the mechanical linear displacement sensor and lab view software has been developed and implemented in an industrial production line.
The standard four-ball tribological measurements on the friction coefficients and wear damages of nanolubricating oils containing various modified ZrP nanoplatelets illustrate that a longer alkyl chain on the outer surfaces will result in a better tribological performance and a further intercalation with 1-dodecanamine will cause a significant decrease in the tribological performance.
bAll post-treatment measurements were significantly different from baseline value.
Based on this initial approach, and with some methodological differences, several test protocols assessing various physiological and skill performance criteria have been developed, all of them using a ball-throwing machine, 41 44 although most of them require expensive equipment (ie, ball machine, radar measurements).
In the current work, the inhibitive properties of a melamine cross-linking agent are evaluated through experiments including linear expansion, mud balls, particle distribution measurements, thermogravimetric analysis and scanning electron microscopy.
Since this subset is unknown in advance, the largest distance among the maximum distances from the estimate to all balls (derived from measurements) can be considered as an upper bound on the position error.
Microhardness measurements and ball on disc wear tests were performed for a preliminary assessment of the mechanical properties of the corresponding alloys.
We have first assumed that at least one measurement error is positive and then have concluded that the target node position can be found at least inside one ball derived from the measurements.
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