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SKF / Tapered roller bearings

SKF BT4B 331243 E/C775

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

Technical data available
Bore diameterd
520.7 mm
Outside diameterD
711.2 mm
Dynamic load ratingC
10012 kN
Static load ratingC0
19600 kN
Mass≈m
460 kg
Bore diameter
520.7 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 diameterd520.7 mm
Outside diameterD711.2 mm
Basic dynamic load ratingC10012 kN
Basic static load ratingC019600 kN
Fatigue load limitPu1460 kN
Mass≈m460 kg
SealingWithout
CageSheet metal
LubricantNone
Dimensions6 parameters
Dimensions
ParameterSymbolValue
Bore diameter520.7 mm
Outside diameter711.2 mm
Width, total400.05 mm
Width, inner ring400.05 mm
Width, outer ring400.05 mm
Contact angle12.5 °
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 data11 parameters
Engineering — Calculation data
ParameterSymbolValue
SKF performance classSKF Explorer
Basic dynamic load ratingC10012 kN
Basic static load ratingC 019600 kN
Fatigue load limitP u1460 kN
Comparative radial load ratingC F2450 kN
Comparative axial load ratingC Fa403 kN
Thrust factorK1.8
Limiting valuee0.33
Calculation factorY 12
Calculation factorY 23
Calculation factorY 02
Engineering — Dimensions8 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd520.7 mm
Outside diameterD711.2 mm
Total bearing width over inner ringsB400.05 mm
Total bearing width over outer ringsT400.05 mm
Abutment diameter shaftd 1≈ 567 mm
Abutment diameter housingD 1≈ 655 mm
Chamfer dimension inner ringr 1,2min. 3.3 mm
Outer ring radius (chamfer)r 3,4min. 6.4 mm
Engineering — Engineering specifications2 parameters
Engineering — Engineering specifications
ParameterSymbolValue
Design variant/featureTQON/GW
Bore typeCylindrical with helical groove
Logistics1 parameter
Logistics
ParameterSymbolValue
Product net weight460.0 kg
Performance3 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating10012.0 kN
Basic static load rating19600.0 kN
SKF performance classSKF Explorer
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 product1700.0 kg CO 2 e
Indicative carbon footprint for remanufactured product565.0 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 331243 E/C775
Document matching
Exact designation, assembly scope, revision and units must agree.

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