TIMKEN M238840-902A8

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

Technical data available

Bore diameterd: 177.8 mm
Outside diameterD: 269.875 mm
WidthB: 119.062 mm
Dynamic load ratingC: 901 kN
Static load ratingC0: 2000 kN
Mass≈m: 23.04 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		M238800
Variant / construction		TDO - Tapered Double Outer
Bore diameter	d	177.8 mm
Outside diameter	D	269.875 mm
Width	B	119.062 mm
Basic dynamic load rating	C	901 kN
Basic static load rating	C0	2000 kN
Mass	≈m	23.04 kg
Precision class		ABMA Class 2
Sealing		Open
Cage		Steel cage

Calculation Factors6 parameters

Calculation Factors
Parameter	Symbol	Value
K Factor		1.76
Y1 Factor		2.03
Y2 Factor		3.02
Y0 Factor		1.98
E Factor		0.33
Cg Factor		0.1201

Manufacturer Identity9 parameters

Manufacturer Identity
Parameter	Symbol	Value
Brand		Timken
Material Number		000000000100137288
World Assembly Part Number		M238840_M238810CD
Inner Ring Part Number		M238840
Outer Ring Part Number		M238810CD
Drawing Number		B-153729
Upc		0053893538273
Official Source System		CORE BP - DS DF
Official Last Run		2026-08-23T20:02:47.283

Product Identity4 parameters

Product Identity
Parameter	Symbol	Value
Type Description		TDO - Tapered Double Outer
Construction		Double Row Tapered Roller Bearing Assembly \| Imperial Series \| 7.0000 in Bore \| 10.6250 in OD \| 4.6875 in Width \| Open \| Cylindrical Bore \| Steel Cage \| Precision ABMA Class 2
Number Of Rows		2
Tapered Bore		N

Technical Data10 parameters

Technical Data
Parameter	Symbol	Value
Overall Width		0.000 mm
Radial Rating		234,000 N
Axial Rating		76,400 N
Dynamic Rating C1		901,000 N
Dynamic Rating C90		234,000 N
Dynamic Axial Rating Ca90		76,400 N
Dynamic Axial Rating Ca1		295,000 N
Static Radial Rating C0		2,000,000 N
Extended Dynamic Rating Ce		0 N
Static Axial Rating C0A		968,000 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 M238840-902A8
Document matching: Exact designation, assembly scope, revision and units must agree.

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