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KOYO / Single-row / nj

KOYO NJ2234R

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

Technical data available
Bore diameterd
170 mm
Outside diameterD
310 mm
WidthB
86 mm
Dynamic load ratingC
1210 kN
Static load ratingC0
1410 kN
Limiting speednG
1700 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 diameterd170 mm
Outside diameterD310 mm
WidthB86 mm
Basic dynamic load ratingC1210 kN
Basic static load ratingC01410 kN
Fatigue load limitPu166 kN
Limiting speednG1700 r/min
Mass≈m29.9 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
d170 mm
D310 mm
B86 mm
R(Min.)4 mm
R1(Min.)4 mm
Fw205 mm
Ew- mm
Basic Load Ratings : Cr1210 kN
Basic Load Ratings : C0R1410 kN
Fatigue Load Limit : Cu166 kN
Limiting Speeds(Grease Lub.)1700 min-1
Limiting Speeds(Oil Lub.)2200 min-1
Sd1- mm
B1- mm
B2- mm
Da(Min.)- mm
Db(Min.)186 mm
Db(Max.)204 mm
Dc(Min.)- mm
Dd(Min.)- mm
Da(Max.)294 mm
Db(Max.)- mm
Db(Min.)- mm
Ra(Max.)3 mm
Rb(Max.)3 mm
Mass(Refer.)29.9 kg

Technical documents & data sheet

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Record identity
KOYO NJ2234R
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