NTN QJ 216 bearing

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NTN QJ 216 Bearing Details:
Bearing NameQJ 216
New ModelQJ216
Old Model176216 bearing
product ModelQJ216
CategoryAngular Contact Ball Bearings
BrandNTN Bearing
Inner Diameter d ( mm ) 80
Outer Diameter D ( mm )140
Thickness B ( mm )26
NTN QJ 216 Bearing   Bearing Size and Drawing:
QJ 216
NTN QJ 216 Bearing With size alternative model
ModelInner Diameter
d(mm)
Outer Diameter
D(mm)
thickness
B(mm)
BrandType
TORRINGTON 6216-Z Bearing8014026TORRINGTONDeep Groove Ball Bearings
SNFA 7216 AC Bearing8014026SNFAAngular Contact Ball Bearings
NSK NU216 Bearing8014026NSKCylindrical Roller Bearings
NTN 6216-2Z Bearing8014026NTNDeep Groove Ball Bearings
RHP 7216 C Bearing8014026RHPAngular Contact Ball Bearings
NTN QJ216 Bearing8014026NTNAngular Contact Ball Bearings
NACHI NJ216+HJ216 Bearing8014026NACHICylindrical Roller Bearings
KOYO 7216 Bearing8014026KOYOAngular Contact Ball Bearings
KOYO 6216-RZ Bearing8014026KOYODeep Groove Ball Bearings
NSK NSK7216BWG Bearing8014026NSKAngular 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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