Questions about installing angular contact ball bearings in pairs! Thank you
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How to adjust the gap of the inner and outer shims when installing a diagonal contact ball bearing? How to measure it?
Is it to adjust the clearance of the two sets of angular contact bearings? In most cases, there is no need to use shims on the inner or outer ring of paired bearings; if shims are used, the bearing housing cover will press down on the inner or outer ring, and the amount of play can be measured using a dial indicator. It depends specifically on whether the bearings are installed back to back or face to face; figure it out by yourself!
Is it usually the inner ring that is compressed, with a gap of 0.01 left between the outer ring and the gland?
You’re right! The reason paired bearings are called such is that the clearance between them has already been adjusted before they leave the factory; you simply need to install them at the positions indicated on the bearings. After tightening the nut behind the inner ring, rotate the two sets together – if everything moves smoothly, no further adjustment is necessary. Note that domestic bearings all come with markings; SKF bearings with the suffixes BECBP or BECBM are universally compatible, so they have no markings. Hope this helps!
Are you asking about the bearing clearance or the axial clearance of a thrust bearing?
Bearings have an initial clearance and an operating clearance; usually, the clearance between the inner and outer rings of a bearing is fixed at the time of manufacture. Only the operating clearance can be adjusted, namely the shaft play and the clearance between the bearing and its housing.
As a supplementary note, the clearance between the bearing and the gland is 10-30 microns
Install in pairs; for example, BECBF, where CB represents a standard group that can be paired with any other component without the need for shims. If shims are required when the components are placed back to back, measurements must be taken first. If the results are not satisfactory, the shims should be removed and the components reprocessed; measurements should then be taken again during installation, and this process should be repeated until the desired results are achieved.
What is the typical shaft throughput? Thank you!
Under what circumstances, face to face or back to back?