TIMKEN M276449-902B4

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

Technical data available

Bore diameterd: 536.575 mm
Outside diameterD: 761.873 mm
WidthB: 311.15 mm
Dynamic load ratingC: 6980 kN
Static load ratingC0: 18500 kN
Mass≈m: 433.65 kg

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Technical data

Product specifications

Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.

Core specifications11 parameters

Core specifications
Parameter	Symbol	Value
Series		M276400
Variant / construction		TDO - Tapered Double Outer
Bore diameter	d	536.575 mm
Outside diameter	D	761.873 mm
Width	B	311.15 mm
Basic dynamic load rating	C	6980 kN
Basic static load rating	C0	18500 kN
Mass	≈m	433.65 kg
Precision class		ABMA Class 2
Sealing		Open
Cage		Steel cage

Calculation Factors6 parameters

Calculation Factors
Parameter	Symbol	Value
K Factor		1.76
Y1 Factor		2.03
Y2 Factor		3.02
Y0 Factor		1.98
E Factor		0.33
Cg Factor		0.2839

Manufacturer Identity9 parameters

Manufacturer Identity
Parameter	Symbol	Value
Brand		Timken
Material Number		000000000100174574
World Assembly Part Number		M276449_M276410CD
Inner Ring Part Number		M276449
Outer Ring Part Number		M276410CD
Drawing Number		E-40438
Upc		0053893559230
Official Source System		CORE BP - DS DF
Official Last Run		2026-08-23T20:02:47.75

Product Identity4 parameters

Product Identity
Parameter	Symbol	Value
Type Description		TDO - Tapered Double Outer
Construction		Double Row Tapered Roller Bearing Assembly \| Imperial Series \| 21.1250 in Bore \| 29.9950 in OD \| 12.2500 in Width \| Open \| Cylindrical Bore \| Steel Cage \| Precision ABMA Class 2
Number Of Rows		2
Tapered Bore		N

Technical Data10 parameters

Technical Data
Parameter	Symbol	Value
Overall Width		0.000 mm
Radial Rating		1,810,000 N
Axial Rating		592,000 N
Dynamic Rating C1		6,980,000 N
Dynamic Rating C90		1,810,000 N
Dynamic Axial Rating Ca90		592,000 N
Dynamic Axial Rating Ca1		2,280,000 N
Static Radial Rating C0		18,500,000 N
Extended Dynamic Rating Ce		0 N
Static Axial Rating C0A		8,960,000 N

Technical documents & data sheet

This product page is a BearingScope catalogue reference, not a manufacturer-certified drawing. Preserve the full brand and designation when comparing files.

Record identity: TIMKEN M276449-902B4
Document matching: Exact designation, assembly scope, revision and units must agree.

No verified redistributable CAD or manufacturer PDF is registered for this exact model. A catalogue image is not a dimensioned drawing. Missing technical files are not generated or replaced with unrelated models.

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