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TIMKEN / Radial srb

TIMKEN 231/630YMDW916B

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

Technical data available
Bore diameterd
630 mm
Outside diameterD
1030 mm
WidthB
315 mm
Dynamic load ratingC
11700 kN
Static load ratingC0
21200 kN
Mass≈m
1056.32 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
SeriesEX27886
Variant / constructionRadial SRB
Bore diameterd630 mm
Outside diameterD1030 mm
WidthB315 mm
Basic dynamic load ratingC11700 kN
Basic static load ratingC021200 kN
Mass≈m1056.32 kg
SealingOpen
CageBrass cage
Calculation Factors6 parameters
Calculation Factors
ParameterSymbolValue
K Factor0.00
Y1 Factor2.30
Y2 Factor3.42
Y0 Factor2.25
E Factor0.29
Cg Factor0.1945
Manufacturer Identity9 parameters
Manufacturer Identity
ParameterSymbolValue
BrandTimken
Material Number000000000190025955
World Assembly Part Number231/630YMDW916B
Inner Ring Part Number630ASDY31W37W40
Outer Ring Part Number630ESDC31W37W45BW40
Drawing NumberM943018
Upc0087796368125
Official Source SystemCORE BP - DS DF
Official Last Run2026-08-23T20:02:47.833
Product Identity4 parameters
Product Identity
ParameterSymbolValue
Type DescriptionRadial SRB
ConstructionSpherical Roller Bearing | Imperial Series | 24.8032 in Bore | 40.5512 in OD | 12.4016 in Width | Open | Cylindrical Bore | Brass Cage | C0 Clearance | Bearing contains application features
Number Of Rows2
Tapered BoreN
Technical Data10 parameters
Technical Data
ParameterSymbolValue
Overall Width0.000 mm
Radial Rating11,700,000 N
Axial Rating0 N
Dynamic Rating C111,700,000 N
Dynamic Rating C900 N
Dynamic Axial Rating Ca900 N
Dynamic Axial Rating Ca10 N
Static Radial Rating C021,200,000 N
Extended Dynamic Rating Ce0 N
Static Axial Rating C0A0 N

Technical documents & data sheet

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Record identity
TIMKEN 231/630YMDW916B
Document matching
Exact designation, assembly scope, revision and units must agree.

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