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RIV NF321 bearing

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RIV NF321 Bearing Details:
Bearing NameNF321
New ModelNF321
Old Model12321 bearing
product ModelNF321
CategoryCylindrical Roller Bearings
BrandRIV Bearing
Inner Diameter d ( mm ) 105
Outer Diameter D ( mm )225
Thickness B ( mm )49
RIV NF321 Bearing   Bearing Size and Drawing:
NF321
RIV NF321 Bearing With size alternative model
ModelInner Diameter
d(mm)
Outer Diameter
D(mm)
thickness
B(mm)
BrandType
NTN QJ 321 Bearing10522549NTNAngular Contact Ball Bearings
TBS NU321ECP* Bearing10522549TBSCylindrical Roller Bearings
NSK 6321-2Z Bearing10522549NSKDeep Groove Ball Bearings
STEYR NUP 321 Bearing10522549STEYRCylindrical Roller Bearings
NSK 6321-RS Bearing10522549NSKDeep Groove Ball Bearings
KOYO 6321RU Bearing10522549KOYODeep Groove Ball Bearings
MRC 7321AC Bearing10522549MRCAngular Contact Ball Bearings
NTN 6321-RS Bearing10522549NTNDeep Groove Ball Bearings
FAG N 321 Bearing10522549FAGCylindrical Roller Bearings
NSK NSKNU321W Bearing10522549NSKCylindrical Roller Bearings

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What are the structural components and design advantages of cylindrical roller bearings?
 
Cylindrical roller bearings consist of an inner ring, an outer ring, cylindrical rollers, and a cage (some models have full complement rollers or no inner or outer rings). The rollers and raceways are designed for line contact, offering advantages such as extremely high radial load capacity, good rigidity, low coefficient of friction, high limiting speed, and the ability to allow a certain degree of axial displacement of the shaft relative to the housing bore.
 
What are the advantages of cylindrical roller bearings compared to other similar bearings?
 
Compared to deep groove ball bearings, cylindrical roller bearings have significantly higher radial load capacity, making them more suitable for heavy-duty applications. Compared to tapered roller bearings, they have higher limiting speeds, lower frictional heat generation, and simplify system design when not subjected to axial loads. Compared to needle roller bearings, they offer superior rigidity and shock resistance, making them suitable for applications requiring higher stability.
 
What are the applicable occasions and typical applications of cylindrical roller bearings?
 
These bearings are suitable for heavy-duty, high-speed machinery requiring rigid support. Typical applications include large motors, machine tool spindles, gearboxes, rolling mills, industrial pumps, papermaking machinery, and mining crushing equipment.

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