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KOYO 7213DF bearing

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KOYO 7213DF Bearing Details:
Bearing Name7213DF
New Model7213DF
Old Model346213 bearing
product Model7213DF
CategoryAngular Contact Ball Bearings
BrandKOYO Bearing
Inner Diameter d ( mm ) 65
Outer Diameter D ( mm )120
Thickness B ( mm )46
KOYO 7213DF Bearing   Bearing Size and Drawing:
7213DF
KOYO 7213DF Bearing With size alternative model
ModelInner Diameter
d(mm)
Outer Diameter
D(mm)
thickness
B(mm)
BrandType
NSK NSK7213BWDT Bearing6512046NSKAngular Contact Ball Bearings
KOYO 7213AC/DB Bearing6512046KOYOAngular Contact Ball Bearings
TBS 2 Bearing6512046TBSAngular Contact Ball Bearings
TBS 2×7213BECBY Bearing6512046TBSAngular Contact Ball Bearings
KOYO 7213 C/ DF Bearing6512046KOYOAngular Contact Ball Bearings
NSK 7213 B/ DF Bearing6512046NSKAngular Contact Ball Bearings
NACHI 7213 AC/ DB Bearing6512046NACHIAngular Contact Ball Bearings
TBS 7213 C/ DF Bearing6512046TBSAngular Contact Ball Bearings
NSK NSK7213BYDF Bearing6512046NSKAngular Contact Ball Bearings
NSK 7213 AC/ DB Bearing6512046NSKAngular 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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