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TIMKEN / Cylindrical 1-row

TIMKEN NJ234EMAC3

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
52 mm
Dynamic load ratingC
685 kN
Static load ratingC0
822 kN
Mass≈m
17.9 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
SeriesEX27135
Variant / constructionCylindrical 1-Row
Bore diameterd170 mm
Outside diameterD310 mm
WidthB52 mm
Basic dynamic load ratingC685 kN
Basic static load ratingC0822 kN
Mass≈m17.9 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 Factor0.1197
Manufacturer Identity9 parameters
Manufacturer Identity
ParameterSymbolValue
BrandTimken
Material Number000000000190020539
World Assembly Part NumberNJ234EMA
Inner Ring Part Number170ARJE02
Outer Ring Part Number170ERUE02
Drawing NumberM104208
Upc0087796302617
Official Source SystemCORE BP - DS DF
Official Last Run2026-08-23T20:02:47.4
Product Identity4 parameters
Product Identity
ParameterSymbolValue
Type DescriptionCylindrical 1-Row
ConstructionSingle Row Cylindrical Roller Bearing | Imperial Series | 6.6929 in Bore | 12.2047 in OD | 2.0472 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 Rating685,000 N
Axial Rating0 N
Dynamic Rating C1685,000 N
Dynamic Rating C900 N
Dynamic Axial Rating Ca900 N
Dynamic Axial Rating Ca10 N
Static Radial Rating C0822,000 N
Extended Dynamic Rating Ce0 N
Static Axial Rating C0A0 N

Technical documents & data sheet

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Record identity
TIMKEN NJ234EMAC3
Document matching
Exact designation, assembly scope, revision and units must agree.

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