TIMKEN DX641856-902A1

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

Technical data available

Bore diameterd: 203.2 mm
Outside diameterD: 317.5 mm
WidthB: 146.05 mm
Dynamic load ratingC: 1570 kN
Static load ratingC0: 2580 kN
Mass≈m: 39.26 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		93000
Variant / construction		TDO - Tapered Double Outer
Bore diameter	d	203.2 mm
Outside diameter	D	317.5 mm
Width	B	146.05 mm
Basic dynamic load rating	C	1570 kN
Basic static load rating	C0	2580 kN
Mass	≈m	39.26 kg
Precision class		ABMA Class 2
Sealing		Open
Cage		Steel cage

Calculation Factors6 parameters

Calculation Factors
Parameter	Symbol	Value
K Factor		1.12
Y1 Factor		1.29
Y2 Factor		1.92
Y0 Factor		1.26
E Factor		0.52
Cg Factor		0.1460

Manufacturer Identity9 parameters

Manufacturer Identity
Parameter	Symbol	Value
Brand		Timken
Material Number		000000000190020234
World Assembly Part Number		DX641856_DX979640
Inner Ring Part Number		DX641856
Outer Ring Part Number		DX979640
Drawing Number		C-80692
Upc		0053893821009
Official Source System		CORE BP - DS DF
Official Last Run		2026-08-23T20:02:46.743

Product Identity4 parameters

Product Identity
Parameter	Symbol	Value
Type Description		TDO - Tapered Double Outer
Construction		Double Row Tapered Roller Bearing Assembly \| Imperial Series \| 8.0000 in Bore \| 12.5000 in OD \| 5.7500 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		406,000 N
Axial Rating		209,000 N
Dynamic Rating C1		1,570,000 N
Dynamic Rating C90		406,000 N
Dynamic Axial Rating Ca90		209,000 N
Dynamic Axial Rating Ca1		806,000 N
Static Radial Rating C0		2,580,000 N
Extended Dynamic Rating Ce		0 N
Static Axial Rating C0A		1,970,000 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 DX641856-902A1
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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