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TIMKEN / Ts - tapered single

TIMKEN 99550 / 99100

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

Technical data available
Bore diameterd
139.7 mm
Outside diameterD
254 mm
WidthB
66.675 mm
Dynamic load ratingC
660 kN
Static load ratingC0
1030 kN
Mass≈m
13.99 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
Series99000
Variant / constructionTS - Tapered Single
Bore diameterd139.7 mm
Outside diameterD254 mm
WidthB66.675 mm
Basic dynamic load ratingC660 kN
Basic static load ratingC01030 kN
Mass≈m13.99 kg
Precision classABMA Class 2
SealingOpen
CageSteel cage
Calculation Factors6 parameters
Calculation Factors
ParameterSymbolValue
K Factor1.43
Y1 Factor1.47
Y2 Factor0.00
Y0 Factor0.81
E Factor0.41
Cg Factor0.1459
Manufacturer Identity9 parameters
Manufacturer Identity
ParameterSymbolValue
BrandTimken
Material Number000000000100374432
World Assembly Part Number99550_99100
Inner Ring Part Number99550
Outer Ring Part Number99100
Drawing NumberB-8295
Upc0053893288222
Official Source SystemCORE BP - DS DF
Official Last Run2026-08-23T20:02:47.383
Product Identity4 parameters
Product Identity
ParameterSymbolValue
Type DescriptionTS - Tapered Single
ConstructionSingle Row Tapered Roller Bearing Assembly | Imperial Series | 5.5000 in Bore | 10.0000 in OD | 2.6250 in Width | Open | Cylindrical Bore | Steel Cage | Precision ABMA Class 2
Number Of Rows1
Tapered BoreN
Technical Data10 parameters
Technical Data
ParameterSymbolValue
Overall Width80.075 mm
Radial Rating171,000 N
Axial Rating119,000 N
Dynamic Rating C1660,000 N
Dynamic Rating C90171,000 N
Dynamic Axial Rating Ca90119,000 N
Dynamic Axial Rating Ca1460,000 N
Static Radial Rating C01,030,000 N
Extended Dynamic Rating Ce0 N
Static Axial Rating C0A1,220,000 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 99550 / 99100
Document matching
Exact designation, assembly scope, revision and units must agree.

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