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NTN 7219 AC bearing

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NTN 7219 AC Bearing Details:
Bearing Name7219 AC
New Model7219AC
Old Model46219 bearing
product Model7219AC
CategoryAngular Contact Ball Bearings
BrandNTN Bearing
Inner Diameter d ( mm ) 95
Outer Diameter D ( mm )170
Thickness B ( mm )32
NTN 7219 AC Bearing   Bearing Size and Drawing:
7219 AC
NTN 7219 AC Bearing With size alternative model
ModelInner Diameter
d(mm)
Outer Diameter
D(mm)
thickness
B(mm)
BrandType
NTN N 219 Bearing9517032NTNCylindrical Roller Bearings
KOYO 1219K Bearing9517032KOYOSelf-aligning Ball Bearings
NSK NSKN219W Bearing9517032NSKCylindrical Roller Bearings
NSK NJ219E+HJ219E Bearing9517032NSKCylindrical Roller Bearings
NTN 7219C Bearing9517032NTNAngular Contact Ball Bearings
NTN 7219AC Bearing9517032NTNAngular Contact Ball Bearings
FAG QJ219 Bearing9517032FAGAngular Contact Ball Bearings
TBS NJ 219 E CJ* Bearing9517032TBSCylindrical Roller Bearings
KOYO NJ219E+HJ219E Bearing9517032KOYOCylindrical Roller Bearings
STEYR 1219K Bearing9517032STEYRSelf-aligning 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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