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TIMKEN / Cylindrical 1-row

TIMKEN 280RN91 R3

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

Technical data available
Bore diameterd
280 mm
Outside diameterD
460 mm
WidthB
123.825 mm
Dynamic load ratingC
2410 kN
Static load ratingC0
3700 kN
Mass≈m
84.5 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
SeriesEX26829
Variant / constructionCylindrical 1-Row
Bore diameterd280 mm
Outside diameterD460 mm
WidthB123.825 mm
Basic dynamic load ratingC2410 kN
Basic static load ratingC03700 kN
Mass≈m84.5 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 Factor0.2008
Manufacturer Identity9 parameters
Manufacturer Identity
ParameterSymbolValue
BrandTimken
Material Number000000000100180572
World Assembly Part Number280RN91
Inner Ring Part Number280ARNT91
Outer Ring Part Number280ERNT91
Drawing NumberM902131
Upc0087796020450
Official Source SystemCORE BP - DS DF
Official Last Run2026-08-23T20:02:47.927
Product Identity4 parameters
Product Identity
ParameterSymbolValue
Type DescriptionCylindrical 1-Row
ConstructionSingle Row Cylindrical Roller Bearing | Imperial Series | 11.0236 in Bore | 18.1102 in OD | 4.8750 in Width | Open | Cylindrical Bore | Machined Window Brass Cage | R3 Clearance
Number Of Rows1
Tapered BoreN
Technical Data10 parameters
Technical Data
ParameterSymbolValue
Overall Width0.000 mm
Radial Rating2,410,000 N
Axial Rating0 N
Dynamic Rating C12,410,000 N
Dynamic Rating C900 N
Dynamic Axial Rating Ca900 N
Dynamic Axial Rating Ca10 N
Static Radial Rating C03,700,000 N
Extended Dynamic Rating Ce0 N
Static Axial Rating C0A0 N

Technical documents & data sheet

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Record identity
TIMKEN 280RN91 R3
Document matching
Exact designation, assembly scope, revision and units must agree.

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