TIMKEN 81630-906A2

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

Technical data available

Bore diameterd: 159.95 mm
Outside diameterD: 244.475 mm
WidthB: 107.95 mm
Dynamic load ratingC: 699 kN
Static load ratingC0: 1190 kN
Mass≈m: 15.08 kg

Compare this model by brand →Check interchange requirements →

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 specifications11 parameters

Core specifications
Parameter	Symbol	Value
Series		81000
Variant / construction		TDO - Tapered Double Outer
Bore diameter	d	159.95 mm
Outside diameter	D	244.475 mm
Width	B	107.95 mm
Basic dynamic load rating	C	699 kN
Basic static load rating	C0	1190 kN
Mass	≈m	15.08 kg
Precision class		ABMA Class 00
Sealing		Open
Cage		Steel cage

Calculation Factors6 parameters

Calculation Factors
Parameter	Symbol	Value
K Factor		1.66
Y1 Factor		1.92
Y2 Factor		2.86
Y0 Factor		1.88
E Factor		0.35
Cg Factor		0.1250

Manufacturer Identity9 parameters

Manufacturer Identity
Parameter	Symbol	Value
Brand		Timken
Material Number		000000000190084393
World Assembly Part Number		81630_81963CD
Inner Ring Part Number		81630
Outer Ring Part Number		81963CD
Drawing Number		C-127757
Upc		0013992485427
Official Source System		CORE BP - DS DF
Official Last Run		2026-08-23T20:02:47.39

Product Identity4 parameters

Product Identity
Parameter	Symbol	Value
Type Description		TDO - Tapered Double Outer
Construction		Double Row Tapered Roller Bearing Assembly \| Imperial Series \| 6.2973 in Bore \| 9.6250 in OD \| 4.2500 in Width \| Open \| Cylindrical Bore \| Steel Cage \| Precision ABMA Class 00
Number Of Rows		2
Tapered Bore		N

Technical Data10 parameters

Technical Data
Parameter	Symbol	Value
Overall Width		0.000 mm
Radial Rating		181,000 N
Axial Rating		62,700 N
Dynamic Rating C1		699,000 N
Dynamic Rating C90		181,000 N
Dynamic Axial Rating Ca90		62,700 N
Dynamic Axial Rating Ca1		242,000 N
Static Radial Rating C0		1,190,000 N
Extended Dynamic Rating Ce		0 N
Static Axial Rating C0A		610,000 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 81630-906A2
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.

Look up another model or check drawing requirements →

Previous product← TIMKEN 87762-902A2 Tapered roller bearing

Next productTIMKEN 82576-902B4 Tapered roller bearing →