99,016 bearing records · search, filter and compare

KOYO / Single-row / nj

KOYO NJ348

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

Technical data available
Bore diameterd
240 mm
Outside diameterD
500 mm
WidthB
95 mm
Dynamic load ratingC
1790 kN
Static load ratingC0
1950 kN
Limiting speednG
990 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 diameterd240 mm
Outside diameterD500 mm
WidthB95 mm
Basic dynamic load ratingC1790 kN
Basic static load ratingC01950 kN
Fatigue load limitPu211 kN
Limiting speednG990 r/min
Mass≈m100 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
d240 mm
D500 mm
B95 mm
R(Min.)5 mm
R1(Min.)5 mm
Fw310 mm
Ew- mm
Basic Load Ratings : Cr1790 kN
Basic Load Ratings : C0R1950 kN
Fatigue Load Limit : Cu211 kN
Limiting Speeds(Grease Lub.)990 min-1
Limiting Speeds(Oil Lub.)1300 min-1
Sd1- mm
B1- mm
B2- mm
Da(Min.)- mm
Db(Min.)260 mm
Db(Max.)305 mm
Dc(Min.)- mm
Dd(Min.)- mm
Da(Max.)480 mm
Db(Max.)- mm
Db(Min.)- mm
Ra(Max.)4 mm
Rb(Max.)4 mm
Mass(Refer.)100 kg

Technical documents & data sheet

This product page is a BearingScope catalogue reference, not a manufacturer-certified drawing. Preserve the full brand and designation when comparing files.

Record identity
KOYO NJ348
Document matching
Exact designation, assembly scope, revision and units must agree.

No verified redistributable CAD or manufacturer PDF is registered for this exact model. A catalogue image is not a dimensioned drawing. Missing technical files are not generated or replaced with unrelated models.

Look up another model or check drawing requirements →

Search the consolidated catalogue

Find, filter and compare bearing model data in one place.

Open model search