Angular contact ball bearing fatigue life
Angular contact ball bearing fatigue life
PRODUCT
The rules of bearing rotation
by：Waxing
2020-11-17
Workpiece circular workpiece circular speed increases, the grinding wheel in unit time increases, the metal removed so as to improve the grinding productivity but with the improvement of workpiece rotational speed, grinding process of single abrasive grain thickness increases, plastic deformation of the workpiece surface also increases accordingly, make the surface roughness value increases.
Workpiece rotational speed generally off for 13 ~ 20 m/min. 3.
Longitudinal feed longitudinal feed, is the point at which the workpiece in the grinding along the longitudinal in unit time mobile distance, its size is decided by the Angle of roller.
The actual use process, coarse grinding with larger than the final grinding Angle.
4.
Transverse feeding transverse feeding of grinding depth, also known as turning back.
Grinding depth refers to each wear has been grinding out diameter direction of allowance.
Ground should choose larger grinding depth, at the beginning of the end mill grinding depth of selecting the smaller, such processing orders, and to in grinding can get high production efficiency, at the beginning of the end mill can get the good surface quality.
All wear, at the beginning of the end mill grinding stroke back turning size decreasing, the machining accuracy, in turn, increase, the last stroke of grinding depth should be the minimum to make grinding wheel wear more slowly, in order to get stable dimension, form and position accuracy.
Reasonable turning amount should be determine according to the experiment, when the grinding speed is 30 ~ 35 m/s, under the condition of grinding wheel width is 150 ~ 200 mm, specific grinding depth value
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