Influence of ball precision on the assembly of radial thrust ball bearings

Yakovishin, A. S.; Королев, А. В.; Davidenko, O. Yu.; Iznairov, B. M.; Balaev, A. F.; Mukhina, E. V.; Mazina, A. A.; Sidorenko, A. D.; Savran, Sergey; Konovalov, V. V.

doi:10.3103/s1068798x1612008x

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2019

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“…Spheres are widely used in various fields of technology. The most common engineering applications were balls in rolling bearings, ball pin of cars, stop valves of pipelines, gyroscopes, planetary mechanisms, as well as optical workpieces, details of rocket and space technology [1][2][3][4][5]. Spheres can be closed and non-closed.…”

Section: Introductionmentioning

confidence: 99%

Measurement of Sphericity Using Different Basic Spheres

Grechnikov

Kochetkov

Захаров

2019

MSF

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The problem of measuring sphericity is often encountered in technology. At the same time, the use of various spheres as a base still causes discussion in metrology. Therefore, the article considers three options: Least Square Sphere, Minimum Zone Sphere, Minimax Sphere. The first two methods are known, and the latter method is proposed by the authors. A calculation is made for known test data and experiments for closed and unclosed areas of the sphere. Three schemes of location of control points on the sphere are investigated. The above results made it possible to give recommendations on the application of methods for measuring sphericity in practice.

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