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TIMKEN / Cylindrical 1-row

TIMKEN 300RN02 R3

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

Technical data available
Bore diameterd
300 mm
Outside diameterD
540 mm
WidthB
85 mm
Dynamic load ratingC
1850 kN
Static load ratingC0
2450 kN
Mass≈m
88 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
SeriesNCS-245911
Variant / constructionCylindrical 1-Row
Bore diameterd300 mm
Outside diameterD540 mm
WidthB85 mm
Basic dynamic load ratingC1850 kN
Basic static load ratingC02450 kN
Mass≈m88 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 Factor0.1865
Manufacturer Identity9 parameters
Manufacturer Identity
ParameterSymbolValue
BrandTimken
Material Number000000000190034071
World Assembly Part Number300RN02
Inner Ring Part Number300ARNE02
Outer Ring Part Number300ERNE02
Drawing NumberM911224
Upc0087796136540
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 | 11.8110 in Bore | 21.2598 in OD | 3.3465 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 Rating1,850,000 N
Axial Rating0 N
Dynamic Rating C11,850,000 N
Dynamic Rating C900 N
Dynamic Axial Rating Ca900 N
Dynamic Axial Rating Ca10 N
Static Radial Rating C02,450,000 N
Extended Dynamic Rating Ce0 N
Static Axial Rating C0A0 N

Technical documents & data sheet

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Record identity
TIMKEN 300RN02 R3
Document matching
Exact designation, assembly scope, revision and units must agree.

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