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NTN NA4922 bearing

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NTN NA4922 Bearing Details:
Bearing NameNA4922
New ModelNA4922
Old Model4544922 bearing
product ModelNA4922
CategoryNeedle Roller Bearing
BrandNTN Bearing
Inner Diameter d ( mm ) 110
Outer Diameter D ( mm )150
Thickness B ( mm )40
NTN NA4922 Bearing   Bearing Size and Drawing:
NA4922
NTN NA4922 Bearing With size alternative model
ModelInner Diameter
d(mm)
Outer Diameter
D(mm)
thickness
B(mm)
BrandType
FAG RNA4922 Bearing11015040FAGNeedle Roller Bearing
NTN NA 4922 Bearing11015040NTNNeedle Roller Bearing
NSK NNU4922 Bearing11015040NSKCylindrical Roller Bearings
TBS 71922 C/ DT Bearing11015040TBSAngular Contact Ball Bearings
FAG 71922C/DT Bearing11015040FAGAngular Contact Ball Bearings
MRC 71922 C/ DF Bearing11015040MRCAngular Contact Ball Bearings
MRC 71922C/DB Bearing11015040MRCAngular Contact Ball Bearings
INA RNA4922 Bearing11015040INANeedle Roller Bearing
NSK NNU 4922 K Bearing11015040NSKCylindrical Roller Bearings
TBS 71922C/DT Bearing11015040TBSAngular Contact Ball Bearings

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What are the structural components and design advantages of needle roller bearings?
 
Needle roller bearings consist of slender needle rollers, a cage, and rings (or ringless bearings) typically with a thin-walled design. The needle rollers and raceways have a line contact design, offering advantages such as extremely small radial cross-section, high load capacity, good rigidity, and a low coefficient of friction. They are suitable for compact structures with limited radial space and the need to withstand high loads.
 
What are the advantages of needle roller bearings compared to other similar bearings?
 
Compared to cylindrical roller bearings, needle roller bearings have a significantly smaller radial cross-section, making them more suitable for space-constrained compact designs. Compared to deep groove ball bearings, they have a higher radial load capacity and offer greater shaft diameter design flexibility for the same outer diameter. Compared to sliding bearings, they have lower starting friction, higher running accuracy, and require no complex lubrication system.
 
What are the application scenarios and typical applications of needle roller bearings?
 
These bearings are suitable for mechanical applications with limited radial space, high load capacity, and compact structure requirements. Typical applications include automotive transmissions, engine connecting rods, universal joints, textile machinery, industrial robot joints, motorcycle engines, and aviation hydraulic pumps.

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