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TIMKEN / Radial srb

TIMKEN 239/670KYMBW507C08

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

Technical data available
Bore diameterd
670 mm
Outside diameterD
900 mm
WidthB
170 mm
Dynamic load ratingC
5100 kN
Static load ratingC0
11100 kN
Mass≈m
296.62 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
SeriesEX26897
Variant / constructionRadial SRB
Bore diameterd670 mm
Outside diameterD900 mm
WidthB170 mm
Basic dynamic load ratingC5100 kN
Basic static load ratingC011100 kN
Mass≈m296.62 kg
SealingOpen
CageBrass cage
Calculation Factors6 parameters
Calculation Factors
ParameterSymbolValue
K Factor0.00
Y1 Factor4.20
Y2 Factor6.20
Y0 Factor4.10
E Factor0.16
Cg Factor0.1235
Manufacturer Identity9 parameters
Manufacturer Identity
ParameterSymbolValue
BrandTimken
Material Number000000000100072938
World Assembly Part Number239/670KYMBW507C08
Inner Ring Part Number670ASDY39KC02
Outer Ring Part Number670ESDC39W33W45C04
Drawing NumberM68771
Upc0087796032439
Official Source SystemCORE BP - DS DF
Official Last Run2026-08-23T20:02:46.74
Product Identity4 parameters
Product Identity
ParameterSymbolValue
Type DescriptionRadial SRB
ConstructionSpherical Roller Bearing | Imperial Series | 26.3780 in Bore | 35.4331 in OD | 6.6929 in Width | Open | Tapered Bore | Brass Cage | C0 Clearance | Bearing contains application features
Number Of Rows2
Tapered BoreY
Technical Data10 parameters
Technical Data
ParameterSymbolValue
Overall Width0.000 mm
Radial Rating5,100,000 N
Axial Rating0 N
Dynamic Rating C15,100,000 N
Dynamic Rating C900 N
Dynamic Axial Rating Ca900 N
Dynamic Axial Rating Ca10 N
Static Radial Rating C011,100,000 N
Extended Dynamic Rating Ce0 N
Static Axial Rating C0A0 N

Technical documents & data sheet

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Record identity
TIMKEN 239/670KYMBW507C08
Document matching
Exact designation, assembly scope, revision and units must agree.

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