NTN 7338 B bearing

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NTN 7338 B Bearing Details:
Bearing Name7338 B
New Model7338B
Old Model66338 bearing
product Model7338B
CategoryAngular Contact Ball Bearings
BrandNTN Bearing
Inner Diameter d ( mm ) 190
Outer Diameter D ( mm )400
Thickness B ( mm )78
NTN 7338 B Bearing   Bearing Size and Drawing:
7338 B
NTN 7338 B Bearing With size alternative model
ModelInner Diameter
d(mm)
Outer Diameter
D(mm)
thickness
B(mm)
BrandType
DKF 7338 AC Bearing19040078DKFAngular Contact Ball Bearings
TBS 6338M Bearing19040078TBSDeep Groove Ball Bearings
KOYO 7338 Bearing19040078KOYOAngular Contact Ball Bearings
RHP 7338B Bearing19040078RHPAngular Contact Ball Bearings
TBS 7338 B Bearing19040078TBSAngular Contact Ball Bearings
TBS 6338 Bearing19040078TBSDeep Groove Ball Bearings
KOYO 7338AC Bearing19040078KOYOAngular Contact Ball Bearings
NSK NF338 Bearing19040078NSKCylindrical Roller Bearings
NSK QJ338 Bearing19040078NSKAngular Contact Ball Bearings
SNR 7338 B Bearing19040078SNRAngular 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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