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TIMKEN / Cylindrical 1-row

TIMKEN Y-389-A

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

Technical data available
Bore diameterd
538 mm
Outside diameterD
762 mm
WidthB
100 mm
Dynamic load ratingC
2550 kN
Static load ratingC0
4460 kN
Mass≈m
173.7 kg

Use this page as a technical reference. Verify the current manufacturer specification and the complete application requirements before selection.

Technical data

Product specifications

Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.

Core specifications10 parameters
Core specifications
ParameterSymbolValue
SeriesNCS-045504
Variant / constructionCylindrical 1-Row
Bore diameterd538 mm
Outside diameterD762 mm
WidthB100 mm
Basic dynamic load ratingC2550 kN
Basic static load ratingC04460 kN
Mass≈m173.7 kg
SealingOpen
CageWindow Brass cage
Calculation Factors6 parameters
Calculation Factors
ParameterSymbolValue
K Factor0.00
Y1 Factor0.00
Y2 Factor0.00
Y0 Factor0.00
E Factor0.00
Cg Factor0.2686
Manufacturer Identity9 parameters
Manufacturer Identity
ParameterSymbolValue
BrandTimken
Material Number000000000190085062
World Assembly Part NumberY-389-A
Inner Ring Part NumberY-397-C
Outer Ring Part NumberY-398-C
Drawing NumberM965851
Upc0087796397651
Official Source SystemCORE BP - DS DF
Official Last Run2026-08-23T20:02:47.403
Product Identity4 parameters
Product Identity
ParameterSymbolValue
Type DescriptionCylindrical 1-Row
ConstructionSingle Row Cylindrical Roller Bearing | Imperial Series | 21.1811 in Bore | 30.0000 in OD | 4.7244 in Width | Open | Cylindrical Bore | Machined Window Brass Cage | Special Clearance
Number Of Rows1
Tapered BoreN
Technical Data10 parameters
Technical Data
ParameterSymbolValue
Overall Width0.000 mm
Radial Rating2,550,000 N
Axial Rating0 N
Dynamic Rating C12,550,000 N
Dynamic Rating C900 N
Dynamic Axial Rating Ca900 N
Dynamic Axial Rating Ca10 N
Static Radial Rating C04,460,000 N
Extended Dynamic Rating Ce0 N
Static Axial Rating C0A0 N

Technical documents & data sheet

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Record identity
TIMKEN Y-389-A
Document matching
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