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TIMKEN / Cylindrical 1-row

TIMKEN NJ228EMAC3

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

Technical data available
Bore diameterd
140 mm
Outside diameterD
250 mm
WidthB
42 mm
Dynamic load ratingC
443 kN
Static load ratingC0
526 kN
Mass≈m
9.2 kg

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 specifications10 parameters
Core specifications
ParameterSymbolValue
SeriesEX27549
Variant / constructionCylindrical 1-Row
Bore diameterd140 mm
Outside diameterD250 mm
WidthB42 mm
Basic dynamic load ratingC443 kN
Basic static load ratingC0526 kN
Mass≈m9.2 kg
SealingOpen
CageWindow Brass cage
Calculation Factors6 parameters
Calculation Factors
ParameterSymbolValue
K Factor0.00
Y1 Factor0.00
Y2 Factor0.00
Y0 Factor0.00
E Factor0.00
Cg Factor0.1213
Manufacturer Identity9 parameters
Manufacturer Identity
ParameterSymbolValue
BrandTimken
Material Number000000000190009269
World Assembly Part NumberNJ228EMA
Inner Ring Part Number140ARJE02
Outer Ring Part Number140ERUE02
Drawing NumberM99801
Upc0053893751689
Official Source SystemCORE BP - DS DF
Official Last Run2026-08-23T20:02:48.51
Product Identity4 parameters
Product Identity
ParameterSymbolValue
Type DescriptionCylindrical 1-Row
ConstructionSingle Row Cylindrical Roller Bearing | Imperial Series | 5.5118 in Bore | 9.8425 in OD | 1.6535 in Width | Open | Cylindrical Bore | Machined Window Brass Cage | C3 Clearance
Number Of Rows1
Tapered BoreN
Technical Data10 parameters
Technical Data
ParameterSymbolValue
Overall Width0.000 mm
Radial Rating443,000 N
Axial Rating0 N
Dynamic Rating C1443,000 N
Dynamic Rating C900 N
Dynamic Axial Rating Ca900 N
Dynamic Axial Rating Ca10 N
Static Radial Rating C0526,000 N
Extended Dynamic Rating Ce0 N
Static Axial Rating C0A0 N

Technical documents & data sheet

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Record identity
TIMKEN NJ228EMAC3
Document matching
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