TIMKEN NP749522-90KA3

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

Technical data available

Bore diameterd: 360 mm
Outside diameterD: 480 mm
WidthB: 160 mm
Dynamic load ratingC: 2480 kN
Static load ratingC0: 5290 kN
Mass≈m: 73.19 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		EX27872
Variant / construction		TDO - Tapered Double Outer
Bore diameter	d	360 mm
Outside diameter	D	480 mm
Width	B	160 mm
Basic dynamic load rating	C	2480 kN
Basic static load rating	C0	5290 kN
Mass	≈m	73.19 kg
Precision class		ABMA Class K
Sealing		Open
Cage		Steel cage

Calculation Factors6 parameters

Calculation Factors
Parameter	Symbol	Value
K Factor		1.77
Y1 Factor		2.05
Y2 Factor		3.05
Y0 Factor		2.00
E Factor		0.33
Cg Factor		0.1864

Manufacturer Identity9 parameters

Manufacturer Identity
Parameter	Symbol	Value
Brand		Timken
Material Number		000000000190046591
World Assembly Part Number		NP749522_NP858958
Inner Ring Part Number		NP749522
Outer Ring Part Number		NP858958
Drawing Number		E-51785
Upc		0013992363688
Official Source System		CORE BP - DS DF
Official Last Run		2026-08-23T20:02:47.75

Product Identity4 parameters

Product Identity
Parameter	Symbol	Value
Type Description		TDO - Tapered Double Outer
Construction		Double Row Tapered Roller Bearing Assembly \| Imperial Series \| 14.1732 in Bore \| 18.8976 in OD \| 6.2992 in Width \| Open \| Cylindrical Bore \| Steel Cage \| Precision ABMA Class K
Number Of Rows		2
Tapered Bore		N

Technical Data10 parameters

Technical Data
Parameter	Symbol	Value
Overall Width		0.000 mm
Radial Rating		642,000 N
Axial Rating		208,000 N
Dynamic Rating C1		2,480,000 N
Dynamic Rating C90		642,000 N
Dynamic Axial Rating Ca90		208,000 N
Dynamic Axial Rating Ca1		803,000 N
Static Radial Rating C0		5,290,000 N
Extended Dynamic Rating Ce		0 N
Static Axial Rating C0A		2,540,000 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 NP749522-90KA3
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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