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INA NA4876 bearing

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INA NA4876 Bearing Details:
Bearing NameNA4876
New ModelNA4876
Old Model bearing
product ModelNA4876
CategoryNeedle Roller Bearing
BrandINA Bearing
Inner Diameter d ( mm ) 380
Outer Diameter D ( mm )480
Thickness B ( mm )100
INA NA4876 Bearing   Bearing Size and Drawing:
NA4876
INA NA4876 Bearing With size alternative model
ModelInner Diameter
d(mm)
Outer Diameter
D(mm)
thickness
B(mm)
BrandType
INA NA 4876 Bearing380480100INANeedle Roller Bearing
TBS NNU4876/W33 Bearing380480100TBSCylindrical Roller Bearings
INA SL 01 4876 Bearing380480100INACylindrical Roller Bearings
TBS NNCL 4876 CV Bearing380480100TBSCylindrical Roller Bearings
TBS NNC4876CV Bearing380480100TBSCylindrical Roller Bearings
TBS NNCL4876CV Bearing380480100TBSCylindrical Roller Bearings
TBS NNU4876K/W33 Bearing380480100TBSCylindrical Roller Bearings
TBS NNC4876CV Bearing380480100TBSCylindrical Roller Bearings
INA SL 02 4876 Bearing380480100INACylindrical Roller Bearings
TBS NNU 4876/W33 Bearing380480100TBSCylindrical Roller 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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