TIMKEN NP807597-902A1

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

Technical data available

Bore diameterd: 558.8 mm
Outside diameterD: 736.6 mm
WidthB: 187.328 mm
Dynamic load ratingC: 3990 kN
Static load ratingC0: 8720 kN
Mass≈m: 183.66 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		843000
Variant / construction		TDO - Tapered Double Outer
Bore diameter	d	558.8 mm
Outside diameter	D	736.6 mm
Width	B	187.328 mm
Basic dynamic load rating	C	3990 kN
Basic static load rating	C0	8720 kN
Mass	≈m	183.66 kg
Precision class		ABMA Class 2
Sealing		Open
Cage		Steel cage

Calculation Factors6 parameters

Calculation Factors
Parameter	Symbol	Value
K Factor		1.70
Y1 Factor		1.97
Y2 Factor		2.93
Y0 Factor		1.93
E Factor		0.34
Cg Factor		0.2448

Manufacturer Identity9 parameters

Manufacturer Identity
Parameter	Symbol	Value
Brand		Timken
Material Number		000000000190026268
World Assembly Part Number		NP807597_NP302418
Inner Ring Part Number		NP807597
Outer Ring Part Number		NP302418
Drawing Number		E-51953
Upc		0013992416407
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 \| 22.0000 in Bore \| 29.0000 in OD \| 7.3751 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		1,030,000 N
Axial Rating		349,000 N
Dynamic Rating C1		3,990,000 N
Dynamic Rating C90		1,030,000 N
Dynamic Axial Rating Ca90		349,000 N
Dynamic Axial Rating Ca1		1,340,000 N
Static Radial Rating C0		8,720,000 N
Extended Dynamic Rating Ce		0 N
Static Axial Rating C0A		4,350,000 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 NP807597-902A1
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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