TIMKEN LL686947-904A2

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

Technical data available

Bore diameterd: 914.4 mm
Outside diameterD: 1066.8 mm
WidthB: 139.7 mm
Dynamic load ratingC: 2820 kN
Static load ratingC0: 9910 kN
Mass≈m: 197.76 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		LL686900
Variant / construction		TDO - Tapered Double Outer
Bore diameter	d	914.4 mm
Outside diameter	D	1066.8 mm
Width	B	139.7 mm
Basic dynamic load rating	C	2820 kN
Basic static load rating	C0	9910 kN
Mass	≈m	197.76 kg
Precision class		ABMA Class 4
Sealing		Open
Cage		Steel cage

Calculation Factors6 parameters

Calculation Factors
Parameter	Symbol	Value
K Factor		1.43
Y1 Factor		1.65
Y2 Factor		2.45
Y0 Factor		1.61
E Factor		0.41
Cg Factor		0.3416

Manufacturer Identity9 parameters

Manufacturer Identity
Parameter	Symbol	Value
Brand		Timken
Material Number		000000000100128089
World Assembly Part Number		LL686947_LL686910D
Inner Ring Part Number		LL686947
Outer Ring Part Number		LL686910D
Drawing Number		E-20408
Upc		0053893115030
Official Source System		CORE BP - DS DF
Official Last Run		2026-08-23T20:02:47.683

Product Identity4 parameters

Product Identity
Parameter	Symbol	Value
Type Description		TDO - Tapered Double Outer
Construction		Double Row Tapered Roller Bearing Assembly \| Imperial Series \| 36.0000 in Bore \| 42.0000 in OD \| 5.5000 in Width \| Open \| Cylindrical Bore \| Steel Cage \| Precision ABMA Class 4
Number Of Rows		2
Tapered Bore		N

Technical Data10 parameters

Technical Data
Parameter	Symbol	Value
Overall Width		0.000 mm
Radial Rating		731,000 N
Axial Rating		294,000 N
Dynamic Rating C1		2,820,000 N
Dynamic Rating C90		731,000 N
Dynamic Axial Rating Ca90		294,000 N
Dynamic Axial Rating Ca1		1,130,000 N
Static Radial Rating C0		9,910,000 N
Extended Dynamic Rating Ce		0 N
Static Axial Rating C0A		5,910,000 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 LL686947-904A2
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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