TIMKEN LL771948-903A5

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

Technical data available

Bore diameterd: 476.25 mm
Outside diameterD: 565.15 mm
WidthB: 41.275 mm
Dynamic load ratingC: 469 kN
Static load ratingC0: 1400 kN
Mass≈m: 18.75 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		LL771900
Variant / construction		TS - Tapered Single
Bore diameter	d	476.25 mm
Outside diameter	D	565.15 mm
Width	B	41.275 mm
Basic dynamic load rating	C	469 kN
Basic static load rating	C0	1400 kN
Mass	≈m	18.75 kg
Precision class		ABMA Class 3
Sealing		Open
Cage		Steel cage

Calculation Factors6 parameters

Calculation Factors
Parameter	Symbol	Value
K Factor		1.24
Y1 Factor		1.28
Y2 Factor		0.00
Y0 Factor		0.70
E Factor		0.47
Cg Factor		0.2189

Manufacturer Identity9 parameters

Manufacturer Identity
Parameter	Symbol	Value
Brand		Timken
Material Number		000000000100113214
World Assembly Part Number		LL771948_LL771911
Inner Ring Part Number		LL771948
Outer Ring Part Number		LL771911
Drawing Number		E-19366
Upc		0053893115542
Official Source System		CORE BP - DS DF
Official Last Run		2026-08-23T20:02:47.683

Product Identity4 parameters

Product Identity
Parameter	Symbol	Value
Type Description		TS - Tapered Single
Construction		Precision Tapered Roller Bearing Assembly \| Imperial Series \| 18.7500 in Bore \| 22.2500 in OD \| 1.6250 in Width \| Open \| Cylindrical Bore \| Steel Cage \| Precision ABMA Class 3
Number Of Rows		1
Tapered Bore		N

Technical Data10 parameters

Technical Data
Parameter	Symbol	Value
Overall Width		46.775 mm
Radial Rating		122,000 N
Axial Rating		97,800 N
Dynamic Rating C1		469,000 N
Dynamic Rating C90		122,000 N
Dynamic Axial Rating Ca90		97,800 N
Dynamic Axial Rating Ca1		377,000 N
Static Radial Rating C0		1,400,000 N
Extended Dynamic Rating Ce		0 N
Static Axial Rating C0A		1,920,000 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 LL771948-903A5
Document matching: Exact designation, assembly scope, revision and units must agree.

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