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KOYO 7930 C bearing

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KOYO 7930 C Bearing Details:
Bearing Name7930 C
New Model7930C
Old Model1036930 bearing
product Model7930C
CategoryAngular Contact Ball Bearings
BrandKOYO Bearing
Inner Diameter d ( mm ) 150
Outer Diameter D ( mm )210
Thickness B ( mm )28
KOYO 7930 C Bearing   Bearing Size and Drawing:
7930 C
KOYO 7930 C Bearing With size alternative model
ModelInner Diameter
d(mm)
Outer Diameter
D(mm)
thickness
B(mm)
BrandType
NSK 61930 Bearing15021028NSKDeep Groove Ball Bearings
TBS 71930 AC Bearing15021028TBSAngular Contact Ball Bearings
NTN 71930C Bearing15021028NTNAngular Contact Ball Bearings
TBS 61930MA Bearing15021028TBSDeep Groove Ball Bearings
NACHI 61930 Bearing15021028NACHIDeep Groove Ball Bearings
NSK 61930 Bearing15021028NSKDeep Groove Ball Bearings
TBS 71930AC Bearing15021028TBSAngular Contact Ball Bearings
KOYO 71930C Bearing15021028KOYOAngular Contact Ball Bearings
RHP 71930 AC Bearing15021028RHPAngular Contact Ball Bearings
FAG B71930C-2RZ Bearing15021028FAGAngular Contact Ball Bearings

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What are the structural components and design advantages of angular contact ball bearings?
 
Angular contact ball bearings consist of an inner ring, outer ring, steel balls, and a cage. The raceways of the raceways are designed with a contact angle (typically 15°, 25°, or 40°) between the bearing rings and the steel balls. They offer advantages such as the ability to simultaneously withstand radial and unidirectional axial loads, high limiting speed, high precision, good rigidity, and the ability to withstand bidirectional axial loads when installed in pairs.
 
What are the advantages of angular contact ball bearings compared to other similar bearings?
 
Compared to deep groove ball bearings, angular contact ball bearings have a higher axial load capacity and higher rigidity, making them suitable for precision positioning applications. Compared to tapered roller bearings, they have a higher limiting speed and lower friction, making them more suitable for high-speed operation. Compared to thrust ball bearings, they can simultaneously withstand combined radial and axial loads, and when used in pairs, they maintain high rigidity under bidirectional axial loads without the need for additional radial bearings.
 
What are the applicable applications and typical uses of angular contact ball bearings?
 
These bearings are suitable for high-speed, high-rigidity mechanical applications requiring precise positioning and subjected to combined loads. Typical applications include machine tool spindles, automobile wheel hubs, centrifugal pumps, high-speed electric spindles, industrial robot joints, aero-engine spindles, and precision instrument turntables.

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