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TIMKEN / Radial srb

TIMKEN 231/710YMBW20W45AC4

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

Technical data available
Bore diameterd
710 mm
Outside diameterD
1150 mm
WidthB
345 mm
Dynamic load ratingC
13800 kN
Static load ratingC0
26000 kN
Mass≈m
1429.9 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
SeriesEX27917
Variant / constructionRadial SRB
Bore diameterd710 mm
Outside diameterD1150 mm
WidthB345 mm
Basic dynamic load ratingC13800 kN
Basic static load ratingC026000 kN
Mass≈m1429.9 kg
SealingOpen
CageBrass cage
Calculation Factors6 parameters
Calculation Factors
ParameterSymbolValue
K Factor0.00
Y1 Factor2.39
Y2 Factor3.56
Y0 Factor2.34
E Factor0.28
Cg Factor0.1319
Manufacturer Identity9 parameters
Manufacturer Identity
ParameterSymbolValue
BrandTimken
Material Number000000000190026859
World Assembly Part Number231/710YMBW20W45A
Inner Ring Part Number710ASDY31
Outer Ring Part Number710ESDC31W20W45
Drawing NumberM943354
Upc0087796368279
Official Source SystemCORE BP - DS DF
Official Last Run2026-08-23T20:02:46.737
Product Identity4 parameters
Product Identity
ParameterSymbolValue
Type DescriptionRadial SRB
ConstructionSpherical Roller Bearing | Imperial Series | 27.9528 in Bore | 45.2756 in OD | 13.5827 in Width | Open | Cylindrical Bore | Brass Cage | C4 Clearance | Bearing contains application features
Number Of Rows2
Tapered BoreN
Technical Data10 parameters
Technical Data
ParameterSymbolValue
Overall Width0.000 mm
Radial Rating13,800,000 N
Axial Rating0 N
Dynamic Rating C113,800,000 N
Dynamic Rating C900 N
Dynamic Axial Rating Ca900 N
Dynamic Axial Rating Ca10 N
Static Radial Rating C026,000,000 N
Extended Dynamic Rating Ce0 N
Static Axial Rating C0A0 N

Technical documents & data sheet

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Record identity
TIMKEN 231/710YMBW20W45AC4
Document matching
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