NTN 7340B bearing

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NTN 7340B Bearing Details:
Bearing Name7340B
New Model7340B
Old Model66340 bearing
product Model7340B
CategoryAngular Contact Ball Bearings
BrandNTN Bearing
Inner Diameter d ( mm ) 200
Outer Diameter D ( mm )420
Thickness B ( mm )80
NTN 7340B Bearing   Bearing Size and Drawing:
7340B
NTN 7340B Bearing With size alternative model
ModelInner Diameter
d(mm)
Outer Diameter
D(mm)
thickness
B(mm)
BrandType
KOYO NJ 340 Bearing20042080KOYOCylindrical Roller Bearings
bearings 7340AC Bearing20042080bearingsAngular Contact Ball Bearings
STEYR 6340 Bearing20042080STEYRDeep Groove Ball Bearings
KOYO NF340 Bearing20042080KOYOCylindrical Roller Bearings
TBS 7340 BCBM Bearing20042080TBSAngular Contact Ball Bearings
NSK HF340 Bearing20042080NSKCylindrical Roller Bearings
KOYO 7340AC Bearing20042080KOYOAngular Contact Ball Bearings
KOYO 7340 Bearing20042080KOYOAngular Contact Ball Bearings
NSK NJ 340 Bearing20042080NSKCylindrical Roller Bearings
MRC 7340B Bearing20042080MRCAngular 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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