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KOYO 7204DF bearing

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KOYO 7204DF Bearing Details:
Bearing Name7204DF
New Model7204DF
Old Model346204 bearing
product Model7204DF
CategoryAngular Contact Ball Bearings
BrandKOYO Bearing
Inner Diameter d ( mm ) 20
Outer Diameter D ( mm )47
Thickness B ( mm )28
KOYO 7204DF Bearing   Bearing Size and Drawing:
7204DF
KOYO 7204DF Bearing With size alternative model
ModelInner Diameter
d(mm)
Outer Diameter
D(mm)
thickness
B(mm)
BrandType
DKF 7204AC/DB Bearing204728DKFAngular Contact Ball Bearings
STEYR 7204B/DB Bearing204728STEYRAngular Contact Ball Bearings
NSK 7204B/DB Bearing204728NSKAngular Contact Ball Bearings
TBS 7204C/DF Bearing204728TBSAngular Contact Ball Bearings
KOYO 7204AC/DB Bearing204728KOYOAngular Contact Ball Bearings
NSK 7204 AC/ DT Bearing204728NSKAngular Contact Ball Bearings
KOYO 7204 B/ DB Bearing204728KOYOAngular Contact Ball Bearings
NSK 7204AC/DT Bearing204728NSKAngular Contact Ball Bearings
MRC 7204 AC/ DF Bearing204728MRCAngular Contact Ball Bearings
RHP 7204B/DF Bearing204728RHPAngular 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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