TIMKEN HM266449-902B8

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

Technical data available

Bore diameterd: 384.175 mm
Outside diameterD: 546.1 mm
WidthB: 222.25 mm
Dynamic load ratingC: 4290 kN
Static load ratingC0: 9460 kN
Mass≈m: 160.44 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		HM266400
Variant / construction		TDO - Tapered Double Outer
Bore diameter	d	384.175 mm
Outside diameter	D	546.1 mm
Width	B	222.25 mm
Basic dynamic load rating	C	4290 kN
Basic static load rating	C0	9460 kN
Mass	≈m	160.44 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		0.2178

Manufacturer Identity9 parameters

Manufacturer Identity
Parameter	Symbol	Value
Brand		Timken
Material Number		000000000100179757
World Assembly Part Number		HM266449_HM266410CD
Inner Ring Part Number		HM266449
Outer Ring Part Number		HM266410CD
Drawing Number		E-35280
Upc		0053893666181
Official Source System		CORE BP - DS DF
Official Last Run		2026-08-23T20:02:48.5

Product Identity4 parameters

Product Identity
Parameter	Symbol	Value
Type Description		TDO - Tapered Double Outer
Construction		Double Row Tapered Roller Bearing Assembly \| Imperial Series \| 15.1250 in Bore \| 21.5000 in OD \| 8.7500 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		1,110,000 N
Axial Rating		363,000 N
Dynamic Rating C1		4,290,000 N
Dynamic Rating C90		1,110,000 N
Dynamic Axial Rating Ca90		363,000 N
Dynamic Axial Rating Ca1		1,400,000 N
Static Radial Rating C0		9,460,000 N
Extended Dynamic Rating Ce		0 N
Static Axial Rating C0A		4,580,000 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 HM266449-902B8
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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