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KOYO 7338 AC bearing

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KOYO 7338 AC Bearing Details:
Bearing Name7338 AC
New Model7338AC
Old Model46338 bearing
product Model7338AC
CategoryAngular Contact Ball Bearings
BrandKOYO Bearing
Inner Diameter d ( mm ) 190
Outer Diameter D ( mm )400
Thickness B ( mm )78
KOYO 7338 AC Bearing   Bearing Size and Drawing:
7338 AC
KOYO 7338 AC Bearing With size alternative model
ModelInner Diameter
d(mm)
Outer Diameter
D(mm)
thickness
B(mm)
BrandType
NTN 7338C Bearing19040078NTNAngular Contact Ball Bearings
TBS 7338B Bearing19040078TBSAngular Contact Ball Bearings
MRC 7338 C Bearing19040078MRCAngular Contact Ball Bearings
NACHI 7338B Bearing19040078NACHIAngular Contact Ball Bearings
KOYO NF338 Bearing19040078KOYOCylindrical Roller Bearings
TBS 6338 Bearing19040078TBSDeep Groove Ball Bearings
NACHI HF 338 Bearing19040078NACHICylindrical Roller Bearings
NSK NSKNU338M Bearing19040078NSKCylindrical Roller Bearings
KOYO 6338 Bearing19040078KOYODeep Groove Ball Bearings
FAG NU338E.M1 Bearing19040078FAGCylindrical Roller 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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