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Precision Ball Bearings

Precision bearings are classified according to ISO grading standards: P0, P6, P5, P4, P2. The grades are sequentially increased, of which P0 is ordinary precision, and other grades are precision grades. Of course, different grading standards, different types of bearings, their grading methods are different, but the meaning is one. The performance of precision bearings requires the rotor to have high runout accuracy, high speed rotation and low friction and frictional changes.
Since the precision of the precision bearing itself is less than 1μm, it is required to have high dimensional accuracy and shape accuracy with the matching parts (shaft, bearing housing, end cover, retaining ring, etc.), especially the matching surface precision should be controlled in the same way as the bearing. In the horizontal, this is crucial and is most easily overlooked. It must also be noted that if the matching parts of the precision bearing do not meet the above requirements, the precision bearing will often be several times larger or even more than 10 times larger than the original bearing after installation. It is not a precision bearing at all. The reason is the matching machine. The error of the piece is often not simply superimposed on the error of the bearing, but is amplified by different multiples.

Enclosure NSK 7205A5TRDUMP3 Precision Ball Bearings
Enclosure NSK 7205A5TRDUMP3 Precision Ball Bearings
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NSK
Manufacturer Name SKF 71913 CD/P4ATBTB Precision Ball Bearings
Manufacturer Name SKF 71913 CD/P4ATBTB Precision Ball Bearings
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SKF
Contact Angle FAG BEARING B71917-E-T-P4S-DUL Precision Ball Bearings
Contact Angle FAG BEARING B71917-E-T-P4S-DUL Precision Ball Bearings
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FAG BEARING
UNSPSC NTN ML7002CVDUJ74S Precision Ball Bearings
UNSPSC NTN ML7002CVDUJ74S Precision Ball Bearings
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NTN
Product Group NTN 7204HG1UJ74 Precision Ball Bearings
Product Group NTN 7204HG1UJ74 Precision Ball Bearings
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NTN
Mounting Arrangement SKF 7018 ACD/P4ATBTA Precision Ball Bearings
Mounting Arrangement SKF 7018 ACD/P4ATBTA Precision Ball Bearings
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SKF
Noun NTN HTB016DB/GNP4L Precision Ball Bearings
Noun NTN HTB016DB/GNP4L Precision Ball Bearings
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NTN
Product Group TIMKEN 2MM230WI QUH Precision Ball Bearings
Product Group TIMKEN 2MM230WI QUH Precision Ball Bearings
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TIMKEN
Rolling Element FAG BEARING 7407-B-MP-P5-UL Precision Ball Bearings
Rolling Element FAG BEARING 7407-B-MP-P5-UL Precision Ball Bearings
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FAG BEARING
Product Group FAG BEARING HSS71905-E-T-P4S-UL Precision Ball Bearings
Product Group FAG BEARING HSS71905-E-T-P4S-UL Precision Ball Bearings
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FAG BEARING
Noun TIMKEN 3MM9121WI QUH Precision Ball Bearings
Noun TIMKEN 3MM9121WI QUH Precision Ball Bearings
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TIMKEN
Manufacturer Item Number SKF 7016 ACD/P4AQBCC Precision Ball Bearings
Manufacturer Item Number SKF 7016 ACD/P4AQBCC Precision Ball Bearings
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SKF
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