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KOYO / Single-row / nj

KOYO NJ320R

Cylindrical roller bearings technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
100 mm
Outside diameterD
215 mm
WidthB
47 mm
Dynamic load ratingC
474 kN
Static load ratingC0
424 kN
Limiting speednG
2700 r/min

Use this page as a technical reference. Verify the current manufacturer specification and the complete application requirements before selection.

Technical data

Product specifications

Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.

Core specifications9 parameters
Core specifications
ParameterSymbolValue
Variant / constructionSingle-row / NJ
Bore diameterd100 mm
Outside diameterD215 mm
WidthB47 mm
Basic dynamic load ratingC474 kN
Basic static load ratingC0424 kN
Fatigue load limitPu58.7 kN
Limiting speednG2700 r/min
Mass≈m7.95 kg
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key040-010-000
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathCylindrical roller bearings - Single-row - NJ
Official Classification 1Cylindrical roller bearings / Single-row / NJ
Technical Data26 parameters
Technical Data
ParameterSymbolValue
d100 mm
D215 mm
B47 mm
R(Min.)3 mm
R1(Min.)3 mm
Fw127.5 mm
Ew- mm
Basic Load Ratings : Cr474 kN
Basic Load Ratings : C0R424 kN
Fatigue Load Limit : Cu58.7 kN
Limiting Speeds(Grease Lub.)2700 min-1
Limiting Speeds(Oil Lub.)3600 min-1
Sd1- mm
B1- mm
B2- mm
Da(Min.)- mm
Db(Min.)113 mm
Db(Max.)125 mm
Dc(Min.)- mm
Dd(Min.)- mm
Da(Max.)202 mm
Db(Max.)- mm
Db(Min.)- mm
Ra(Max.)2.5 mm
Rb(Max.)2.5 mm
Mass(Refer.)7.95 kg

Technical documents & data sheet

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Record identity
KOYO NJ320R
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