TIMKEN NP346156-904A1

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

Technical data available

Bore diameterd: 1092.2 mm
Outside diameterD: 1320.8 mm
WidthB: 200 mm
Dynamic load ratingC: 4770 kN
Static load ratingC0: 14500 kN
Mass≈m: 504.69 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		776000
Variant / construction		TDO - Tapered Double Outer
Bore diameter	d	1092.2 mm
Outside diameter	D	1320.8 mm
Width	B	200 mm
Basic dynamic load rating	C	4770 kN
Basic static load rating	C0	14500 kN
Mass	≈m	504.69 kg
Precision class		ABMA Class 4
Sealing		Open
Cage		Steel cage

Calculation Factors6 parameters

Calculation Factors
Parameter	Symbol	Value
K Factor		1.02
Y1 Factor		1.18
Y2 Factor		1.76
Y0 Factor		1.16
E Factor		0.57
Cg Factor		0.4272

Manufacturer Identity9 parameters

Manufacturer Identity
Parameter	Symbol	Value
Brand		Timken
Material Number		000000000190022318
World Assembly Part Number		NP346156_NP513026
Inner Ring Part Number		NP346156
Outer Ring Part Number		NP513026
Drawing Number		E-51365
Upc		0013992368478
Official Source System		CORE BP - DS DF
Official Last Run		2026-08-23T20:02:48.503

Product Identity4 parameters

Product Identity
Parameter	Symbol	Value
Type Description		TDO - Tapered Double Outer
Construction		Double Row Tapered Roller Bearing Assembly \| Imperial Series \| 43.0000 in Bore \| 52.0000 in OD \| 7.8740 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		1,240,000 N
Axial Rating		694,000 N
Dynamic Rating C1		4,770,000 N
Dynamic Rating C90		1,240,000 N
Dynamic Axial Rating Ca90		694,000 N
Dynamic Axial Rating Ca1		2,680,000 N
Static Radial Rating C0		14,500,000 N
Extended Dynamic Rating Ce		0 N
Static Axial Rating C0A		12,100,000 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 NP346156-904A1
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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