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TIMKEN / Ts - tapered single

TIMKEN KC11445Y-900SA

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

Technical data available
Bore diameterd
45.23 mm
Outside diameterD
79.985 mm
WidthB
19.842 mm
Dynamic load ratingC
68.9 kN
Static load ratingC0
83.3 kN
Mass≈m
0.39 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 specifications11 parameters
Core specifications
ParameterSymbolValue
Series17800
Variant / constructionTS - Tapered Single
Bore diameterd45.23 mm
Outside diameterD79.985 mm
WidthB19.842 mm
Basic dynamic load ratingC68.9 kN
Basic static load ratingC083.3 kN
Mass≈m0.39 kg
Precision classABMA Class 2
SealingOpen
CageSteel cage
Calculation Factors6 parameters
Calculation Factors
ParameterSymbolValue
K Factor1.60
Y1 Factor1.64
Y2 Factor0.00
Y0 Factor0.90
E Factor0.37
Cg Factor0.0770
Manufacturer Identity9 parameters
Manufacturer Identity
ParameterSymbolValue
BrandTimken
Material Number000000000100238203
World Assembly Part Number17887_17831
Inner Ring Part Number17887
Outer Ring Part Number17831
Drawing NumberA-12464
Upc0053893724843
Official Source SystemCORE BP - DS DF
Official Last Run2026-08-23T20:02:47.067
Product Identity4 parameters
Product Identity
ParameterSymbolValue
Type DescriptionTS - Tapered Single
ConstructionSingle Row Tapered Roller Bearing Assembly | Imperial Series | 1.7807 in Bore | 3.1490 in OD | 0.7812 in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class 2
Number Of Rows1
Tapered BoreN
Technical Data10 parameters
Technical Data
ParameterSymbolValue
Overall Width23.138 mm
Radial Rating17,900 N
Axial Rating11,200 N
Dynamic Rating C168,900 N
Dynamic Rating C9017,900 N
Dynamic Axial Rating Ca9011,200 N
Dynamic Axial Rating Ca143,100 N
Static Radial Rating C083,300 N
Extended Dynamic Rating Ce0 N
Static Axial Rating C0A88,700 N

Technical documents & data sheet

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Record identity
TIMKEN KC11445Y-900SA
Document matching
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