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KOYO 7938 C bearing

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KOYO 7938 C Bearing Details:
Bearing Name7938 C
New Model7938C
Old Model1036938 bearing
product Model7938C
CategoryAngular Contact Ball Bearings
BrandKOYO Bearing
Inner Diameter d ( mm ) 190
Outer Diameter D ( mm )260
Thickness B ( mm )33
KOYO 7938 C Bearing   Bearing Size and Drawing:
7938 C
KOYO 7938 C Bearing With size alternative model
ModelInner Diameter
d(mm)
Outer Diameter
D(mm)
thickness
B(mm)
BrandType
TBS NJ 1938 E CML Bearing19026033TBSCylindrical Roller Bearings
FAG B71938C-2RZ Bearing19026033FAGAngular Contact Ball Bearings
FAG 71938AC Bearing19026033FAGAngular Contact Ball Bearings
RHP 71938AC Bearing19026033RHPAngular Contact Ball Bearings
NSK 61938 Bearing19026033NSKDeep Groove Ball Bearings
SNFA 71938C Bearing19026033SNFAAngular Contact Ball Bearings
MRC 71938C Bearing19026033MRCAngular Contact Ball Bearings
NSK 61938 Bearing19026033NSKDeep Groove Ball Bearings
NACHI 61938 Bearing19026033NACHIDeep Groove Ball Bearings
TBS 71938AC Bearing19026033TBSAngular 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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