Centripetal ball bearing is a kind of universal design, able to withstand different size in high-speed motion load. This type of rolling bearing by complete sets of precision ball and cage and inner ring. There is a deep groove ball bearing structure standard, can withstand any to radial load and axial load. On the smaller radial ball bearings with maximum load capacity mainly bear radial load. Rolling bearing the models of various sizes are available. The different seal configuration can protect the interior of the rolling bearing components, and indwelling lubricating grease.
Application range
Radial ball bearing is widely used in general industry, automobile industry, agriculture, industry and household appliances industry.
How to identify
Technical condition of normal radial ball bearings, the inner, outer ring raceway should be no spalling and heavy wear, and is a circular arc groove bright; all the ball should be round, no cracks and peeling spot, surface; the holder is not loose, not broken, not worn. When the inner ring with one hand, another hand quickly push the outer ring rotation, rotation smooth, only to hear the ball in the raceway.
Technical condition of normal radial ball bearings, the inner, outer ring raceway should be no spalling and heavy wear, and is a circular arc groove bright; all the ball should be round, no cracks and peeling spot, surface; the holder is not loose, not broken, not worn. When the inner ring with one hand, another hand quickly push the outer ring rotation, rotation smooth, only to hear the ball without vibration at the slightest sound, rolling rolling; stop should be gradually slow, not stop after the setback.
The normal to the heart ball bearings, the inner, outer ring and the rolling gap between the body of 0.005-0.010mm, when the inner and outer ring radial sloshing, should feel no gap. Bearing used, can use the hand holding the inner ring along the axial shaking a few, when the outer ring and ball were sound, the gap with more than 0.03mm, should no longer continue to use.
Technical condition of normal radial ball bearings, the inner, outer ring raceway should be no spalling and heavy wear, and is a circular arc groove bright; all the ball should be round, no cracks and peeling spot, surface; the holder is not loose, not broken, not worn. When the inner ring with one hand, another hand quickly push the outer ring rotation, rotation smooth, only to hear the ball without vibration at the slightest sound, rolling rolling; stop should be gradually slow down, stop no backsliding, normal to the heart ball bearings, the inner, outer ring and the rolling body between the gap of 0.005-0.010mm, when the inner and outer ring radial sloshing, should feel no gap. Bearing used, can use the hand holding the inner ring along the axial shaking a few, when the outer ring and ball have obvious sound, the gap with more than 0.03mm, should no longer continue to use.
How to install
A mounting two outer ring with its wide end faces, "said outer ring width end relative installation", or "back-to-back mounting", or "DB", or O installation.
Another installation is two outer ring with its narrow end relative, known as "outer ring narrow end relative installation", or "face to face" installation ", or DF, or'X installation installation'".
Back-to-back way is different, it is divided into three kinds of situation.
1, if the tip R coincidence two outer raceway, it expands the axial and radial thermal balance, so that the clearance presetting and remain unchanged.
2, this time as the bearing spacing is small, in the outer raceway cone interleaved, radial expansion ratio, axial expansion effect on the bearing clearance, the bearing clearance presetting and should pay attention to this point.
3, when the bearing spacing, outer raceway tip must not intersect, the radial expansion effect on the bearing clearance is smaller than the axial expansion. This clearance will be increased, so that the assembly of the bearing clearance can not leave, and in some cases even with a small amount of preloaded.



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