TIMKEN NP238552-902A1

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

Technical data available

Bore diameterd: 190.5 mm
Outside diameterD: 266.7 mm
WidthB: 103.188 mm
Dynamic load ratingC: 859 kN
Static load ratingC0: 1670 kN
Mass≈m: 16.86 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		67800
Variant / construction		TDO - Tapered Double Outer
Bore diameter	d	190.5 mm
Outside diameter	D	266.7 mm
Width	B	103.188 mm
Basic dynamic load rating	C	859 kN
Basic static load rating	C0	1670 kN
Mass	≈m	16.86 kg
Precision class		ABMA Class 2
Sealing		Open
Cage		Steel cage

Calculation Factors6 parameters

Calculation Factors
Parameter	Symbol	Value
K Factor		1.22
Y1 Factor		1.41
Y2 Factor		2.11
Y0 Factor		1.38
E Factor		0.48
Cg Factor		0.1310

Manufacturer Identity9 parameters

Manufacturer Identity
Parameter	Symbol	Value
Brand		Timken
Material Number		000000000100121469
World Assembly Part Number		NP238552_NP862097
Inner Ring Part Number		NP238552
Outer Ring Part Number		NP862097
Drawing Number		C-54423
Upc		0053893896595
Official Source System		CORE BP - DS DF
Official Last Run		2026-08-23T20:02:48.493

Product Identity4 parameters

Product Identity
Parameter	Symbol	Value
Type Description		TDO - Tapered Double Outer
Construction		Double Row Tapered Roller Bearing Assembly \| Imperial Series \| 7.5000 in Bore \| 10.5000 in OD \| 4.0625 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		223,000 N
Axial Rating		105,000 N
Dynamic Rating C1		859,000 N
Dynamic Rating C90		223,000 N
Dynamic Axial Rating Ca90		105,000 N
Dynamic Axial Rating Ca1		403,000 N
Static Radial Rating C0		1,670,000 N
Extended Dynamic Rating Ce		0 N
Static Axial Rating C0A		1,160,000 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 NP238552-902A1
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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