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SKF / Tapered roller bearings

SKF BT4B 328912 E1/C300

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

Technical data available
Bore diameterd
355.6 mm
Outside diameterD
488.95 mm
Dynamic load ratingC
5100 kN
Static load ratingC0
10000 kN
Mass≈m
179 kg
Bore diameter
355.6 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 diameterd355.6 mm
Outside diameterD488.95 mm
Basic dynamic load ratingC5100 kN
Basic static load ratingC010000 kN
Fatigue load limitPu830 kN
Mass≈m179 kg
SealingSeal on both sides
CageSheet metal
LubricantNone
Dimensions6 parameters
Dimensions
ParameterSymbolValue
Bore diameter355.6 mm
Outside diameter488.95 mm
Width, total317.5 mm
Width, inner ring317.5 mm
Width, outer ring317.5 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 ratingC5100 kN
Basic static load ratingC 010000 kN
Fatigue load limitP u830 kN
Comparative radial load ratingC F1250 kN
Comparative axial load ratingC Fa206 kN
Thrust factorK1.8
Limiting valuee0.33
Calculation factorY 12
Calculation factorY 23
Calculation factorY 02
Engineering — Dimensions8 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd355.6 mm
Outside diameterD488.95 mm
Total bearing width over inner ringsB317.5 mm
Total bearing width over outer ringsT317.5 mm
Abutment diameter shaftd 1≈ 382 mm
Abutment diameter housingD 1≈ 446 mm
Chamfer dimension inner ringr 1,2min. 1 mm
Outer ring radius (chamfer)r 3,4min. 3.3 mm
Engineering — Engineering specifications2 parameters
Engineering — Engineering specifications
ParameterSymbolValue
Design variant/featureTQOSN/GWSI
Bore typeCylindrical with helical groove
Logistics2 parameters
Logistics
ParameterSymbolValue
Product net weight179.0 kg
eClass code23-05-09-10
Performance3 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating5100.0 kN
Basic static load rating10000.0 kN
SKF performance classSKF Explorer
Properties16 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
SealingSeal on both sides
Sealing typeContact
LubricantNone
Relubrication featureWith
Candidate for remanufacturingYes
Indicative carbon footprint for new product662.0 kg CO 2 e
Indicative carbon footprint for remanufactured product220.0 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 328912 E1/C300
Document matching
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