TIMKEN DR925874-902A1

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

Technical data available

Bore diameterd: 317.5 mm
Outside diameterD: 508 mm
WidthB: 110.808 mm
Dynamic load ratingC: 2730 kN
Static load ratingC0: 4080 kN
Mass≈m: 79.17 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		HM162600
Variant / construction		TS - Tapered Single
Bore diameter	d	317.5 mm
Outside diameter	D	508 mm
Width	B	110.808 mm
Basic dynamic load rating	C	2730 kN
Basic static load rating	C0	4080 kN
Mass	≈m	79.17 kg
Precision class		ABMA Class 2
Sealing		Open
Cage		Steel cage

Calculation Factors6 parameters

Calculation Factors
Parameter	Symbol	Value
K Factor		1.90
Y1 Factor		1.95
Y2 Factor		0.00
Y0 Factor		1.07
E Factor		0.31
Cg Factor		0.1911

Manufacturer Identity9 parameters

Manufacturer Identity
Parameter	Symbol	Value
Brand		Timken
Material Number		000000000190057600
World Assembly Part Number		DR925874_DR142478
Inner Ring Part Number		DR925874
Outer Ring Part Number		DR142478
Drawing Number		C-111900
Upc		0053893820231
Official Source System		CORE BP - DS DF
Official Last Run		2026-08-23T20:02:46.323

Product Identity4 parameters

Product Identity
Parameter	Symbol	Value
Type Description		TS - Tapered Single
Construction		Single Row Tapered Roller Bearing Assembly \| Imperial Series \| 12.5000 in Bore \| 20.0000 in OD \| 4.3625 in Width \| Open \| Cylindrical Bore \| Steel Cage \| Precision ABMA Class 2
Number Of Rows		1
Tapered Bore		N

Technical Data10 parameters

Technical Data
Parameter	Symbol	Value
Overall Width		110.808 mm
Radial Rating		708,000 N
Axial Rating		373,000 N
Dynamic Rating C1		2,730,000 N
Dynamic Rating C90		708,000 N
Dynamic Axial Rating Ca90		373,000 N
Dynamic Axial Rating Ca1		1,440,000 N
Static Radial Rating C0		4,080,000 N
Extended Dynamic Rating Ce		0 N
Static Axial Rating C0A		3,660,000 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 DR925874-902A1
Document matching: Exact designation, assembly scope, revision and units must agree.

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