TIMKEN NP428269-902A1

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

Technical data available

Bore diameterd: 234.95 mm
Outside diameterD: 327.025 mm
WidthB: 93.662 mm
Dynamic load ratingC: 918 kN
Static load ratingC0: 2130 kN
Mass≈m: 24.12 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		8500
Variant / construction		TDI - Tapered Double Inner
Bore diameter	d	234.95 mm
Outside diameter	D	327.025 mm
Width	B	93.662 mm
Basic dynamic load rating	C	918 kN
Basic static load rating	C0	2130 kN
Mass	≈m	24.12 kg
Precision class		ABMA Class 4
Sealing		Open
Cage		Steel cage

Calculation Factors6 parameters

Calculation Factors
Parameter	Symbol	Value
K Factor		1.44
Y1 Factor		1.66
Y2 Factor		2.47
Y0 Factor		1.62
E Factor		0.41
Cg Factor		0.1401

Manufacturer Identity9 parameters

Manufacturer Identity
Parameter	Symbol	Value
Brand		Timken
Material Number		000000000190088886
World Assembly Part Number		NP428269_8520
Inner Ring Part Number		NP428269
Outer Ring Part Number		8520
Drawing Number		C-130737
Upc		0013992676214
Official Source System		CORE BP - DS DF
Official Last Run		2026-08-23T20:02:47.673

Product Identity4 parameters

Product Identity
Parameter	Symbol	Value
Type Description		TDI - Tapered Double Inner
Construction		Double Row Tapered Roller Bearing Assembly \| Imperial Series \| 9.2500 in Bore \| 12.8750 in OD \| 3.6875 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		238,000 N
Axial Rating		95,200 N
Dynamic Rating C1		918,000 N
Dynamic Rating C90		238,000 N
Dynamic Axial Rating Ca90		95,200 N
Dynamic Axial Rating Ca1		367,000 N
Static Radial Rating C0		2,130,000 N
Extended Dynamic Rating Ce		0 N
Static Axial Rating C0A		1,260,000 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 NP428269-902A1
Document matching: Exact designation, assembly scope, revision and units must agree.

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