TIMKEN NP146326-902A1

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

Technical data available

Bore diameterd: 107.95 mm
Outside diameterD: 190.5 mm
WidthB: 106.362 mm
Dynamic load ratingC: 608 kN
Static load ratingC0: 1030 kN
Mass≈m: 12.24 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		71000
Variant / construction		TDO - Tapered Double Outer
Bore diameter	d	107.95 mm
Outside diameter	D	190.5 mm
Width	B	106.362 mm
Basic dynamic load rating	C	608 kN
Basic static load rating	C0	1030 kN
Mass	≈m	12.24 kg
Precision class		ABMA Class 2
Sealing		Open
Cage		Steel cage

Calculation Factors6 parameters

Calculation Factors
Parameter	Symbol	Value
K Factor		1.40
Y1 Factor		1.62
Y2 Factor		2.42
Y0 Factor		1.59
E Factor		0.42
Cg Factor		0.1139

Manufacturer Identity9 parameters

Manufacturer Identity
Parameter	Symbol	Value
Brand		Timken
Material Number		000000000190063006
World Assembly Part Number		NP146326_NP685022
Inner Ring Part Number		NP146326
Outer Ring Part Number		NP685022
Drawing Number		C-113000
Upc		0053893815589
Official Source System		CORE BP - DS DF
Official Last Run		2026-08-23T20:02:47.383

Product Identity4 parameters

Product Identity
Parameter	Symbol	Value
Type Description		TDO - Tapered Double Outer
Construction		Double Row Tapered Roller Bearing Assembly \| Imperial Series \| 4.2500 in Bore \| 7.5000 in OD \| 4.1875 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		158,000 N
Axial Rating		64,400 N
Dynamic Rating C1		608,000 N
Dynamic Rating C90		158,000 N
Dynamic Axial Rating Ca90		64,400 N
Dynamic Axial Rating Ca1		249,000 N
Static Radial Rating C0		1,030,000 N
Extended Dynamic Rating Ce		0 N
Static Axial Rating C0A		622,000 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 NP146326-902A1
Document matching: Exact designation, assembly scope, revision and units must agree.

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