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SKF / Tapered roller bearings

SKF BT4B 331089 E/C775

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

Technical data available
Bore diameterd
685.8 mm
Outside diameterD
876.3 mm
Dynamic load ratingC
9000 kN
Static load ratingC0
22000 kN
Mass≈m
537 kg
Bore diameter
685.8 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 diameterd685.8 mm
Outside diameterD876.3 mm
Basic dynamic load ratingC9000 kN
Basic static load ratingC022000 kN
Fatigue load limitPu1500 kN
Mass≈m537 kg
SealingWithout
CageSheet metal
LubricantNone
Dimensions6 parameters
Dimensions
ParameterSymbolValue
Bore diameter685.8 mm
Outside diameter876.3 mm
Width, total355.6 mm
Width, inner ring352.425 mm
Width, outer ring355.6 mm
Contact angle15.5 °
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 ratingC9000 kN
Basic static load ratingC 022000 kN
Fatigue load limitP u1500 kN
Comparative radial load ratingC F2200 kN
Comparative axial load ratingC Fa450 kN
Thrust factorK1.4
Limiting valuee0.43
Calculation factorY 11.6
Calculation factorY 22.3
Calculation factorY 01.6
Engineering — Dimensions8 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd685.8 mm
Outside diameterD876.3 mm
Total bearing width over inner ringsB352.425 mm
Total bearing width over outer ringsT355.6 mm
Abutment diameter shaftd 1≈ 729 mm
Abutment diameter housingD 1≈ 814 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
Logistics2 parameters
Logistics
ParameterSymbolValue
Product net weight537.0 kg
eClass code23-05-09-10
Performance3 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating9000.0 kN
Basic static load rating22000.0 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 product1988.0 kg CO 2 e
Indicative carbon footprint for remanufactured product661.0 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF BT4B 331089 E/C775
Document matching
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