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SKF / Tapered roller bearings

SKF BT4B 331226/HA1

Four-row tapered roller bearing technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
431.8 mm
Outside diameterD
571.5 mm
Dynamic load ratingC
4950 kN
Static load ratingC0
14000 kN
Mass≈m
239 kg
Bore diameter
431.8 mm

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
Variant / constructionTapered roller bearings
Bore diameterd431.8 mm
Outside diameterD571.5 mm
Basic dynamic load ratingC4950 kN
Basic static load ratingC014000 kN
Fatigue load limitPu1060 kN
Mass≈m239 kg
SealingWithout
CageSheet metal
LubricantNone
Dimensions6 parameters
Dimensions
ParameterSymbolValue
Bore diameter431.8 mm
Outside diameter571.5 mm
Width, total336.55 mm
Width, inner ring336.55 mm
Width, outer ring336.55 mm
Contact angle16.3 °
Product identity5 parameters
Product identity
ParameterSymbolValue
Official product categoryTapered roller bearings
Official taxonomy path/products/rolling-bearings/roller-bearings/tapered-roller-bearings/four-row-tapered-roller-bearings
Structure group IDBT4_001
Available from SKFYes
RemanufacturableYes
Engineering — Calculation data10 parameters
Engineering — Calculation data
ParameterSymbolValue
Basic dynamic load ratingC4950 kN
Basic static load ratingC 014000 kN
Fatigue load limitP u1060 kN
Comparative radial load ratingC F1290 kN
Comparative axial load ratingC Fa282 kN
Thrust factorK1.3
Limiting valuee0.44
Calculation factorY 11.5
Calculation factorY 22.3
Calculation factorY 01.4
Engineering — Dimensions8 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd431.8 mm
Outside diameterD571.5 mm
Total bearing width over inner ringsB336.55 mm
Total bearing width over outer ringsT336.55 mm
Abutment diameter shaftd 1≈ 464 mm
Abutment diameter housingD 1≈ 511 mm
Chamfer dimension inner ringr 1,2min. 1.5 mm
Outer ring radius (chamfer)r 3,4min. 3.3 mm
Engineering — Engineering specifications2 parameters
Engineering — Engineering specifications
ParameterSymbolValue
Design variant/featureTQO/GWI
Bore typeCylindrical with helical groove
Logistics2 parameters
Logistics
ParameterSymbolValue
Product net weight239.0 kg
eClass code23-05-09-10
Performance2 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating4950.0 kN
Basic static load rating14000.0 kN
Properties15 parameters
Properties
ParameterSymbolValue
Bearing partComplete bearing
DesignTQO
Number of rows4
Locating feature, bearing outer ringWithout
Bore typeCylindrical with helical groove
CageSheet metal
Arrangement of contact angle (double-row bearing)Not applicable
Matched arrangementNo
CoatingWithout
SealingWithout
LubricantNone
Relubrication featureWith
Candidate for remanufacturingYes
Indicative carbon footprint for new product883.0 kg CO 2 e
Indicative carbon footprint for remanufactured product294.0 kg CO 2 e

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
SKF BT4B 331226/HA1
Document matching
Exact designation, assembly scope, revision and units must agree.

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