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KOYO / Single-row / nj

KOYO NJ309R

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

Technical data available
Bore diameterd
45 mm
Outside diameterD
100 mm
WidthB
25 mm
Dynamic load ratingC
122 kN
Static load ratingC0
98.3 kN
Limiting speednG
6100 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 diameterd45 mm
Outside diameterD100 mm
WidthB25 mm
Basic dynamic load ratingC122 kN
Basic static load ratingC098.3 kN
Fatigue load limitPu13.5 kN
Limiting speednG6100 r/min
Mass≈m0.934 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
d45 mm
D100 mm
B25 mm
R(Min.)1.5 mm
R1(Min.)1.5 mm
Fw58.5 mm
Ew- mm
Basic Load Ratings : Cr122 kN
Basic Load Ratings : C0R98.3 kN
Fatigue Load Limit : Cu13.5 kN
Limiting Speeds(Grease Lub.)6100 min-1
Limiting Speeds(Oil Lub.)8200 min-1
Sd1- mm
B1- mm
B2- mm
Da(Min.)- mm
Db(Min.)53 mm
Db(Max.)57 mm
Dc(Min.)- mm
Dd(Min.)- mm
Da(Max.)92 mm
Db(Max.)- mm
Db(Min.)- mm
Ra(Max.)1.5 mm
Rb(Max.)1.5 mm
Mass(Refer.)0.934 kg

Technical documents & data sheet

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Record identity
KOYO NJ309R
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