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SKF / Tapered roller bearings

SKF BT4-0021 G/HA1

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

Technical data available
Bore diameterd
206.375 mm
Outside diameterD
282.575 mm
Dynamic load ratingC
1400 kN
Static load ratingC0
3350 kN
Mass≈m
36.6 kg
Bore diameter
206.375 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 diameterd206.375 mm
Outside diameterD282.575 mm
Basic dynamic load ratingC1400 kN
Basic static load ratingC03350 kN
Fatigue load limitPu305 kN
Mass≈m36.6 kg
SealingWithout
CageSheet metal
LubricantNone
Dimensions6 parameters
Dimensions
ParameterSymbolValue
Bore diameter206.375 mm
Outside diameter282.575 mm
Width, total190.5 mm
Width, inner ring190.5 mm
Width, outer ring190.5 mm
Contact angle18.8 °
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
RemanufacturableNo
Engineering — Calculation data10 parameters
Engineering — Calculation data
ParameterSymbolValue
Basic dynamic load ratingC1400 kN
Basic static load ratingC 03350 kN
Fatigue load limitP u305 kN
Comparative radial load ratingC F340 kN
Comparative axial load ratingC Fa85.2 kN
Thrust factorK1.2
Limiting valuee0.5
Calculation factorY 11.4
Calculation factorY 22
Calculation factorY 01.3
Engineering — Dimensions8 parameters
Engineering — Dimensions
ParameterSymbolValue
Bore diameterd206.375 mm
Outside diameterD282.575 mm
Total bearing width over inner ringsB190.5 mm
Total bearing width over outer ringsT190.5 mm
Abutment diameter shaftd 1≈ 221 mm
Abutment diameter housingD 1≈ 248 mm
Chamfer dimension inner ringr 1,2min. 0.8 mm
Outer ring radius (chamfer)r 3,4min. 3.3 mm
Engineering — Engineering specifications2 parameters
Engineering — Engineering specifications
ParameterSymbolValue
Design variant/featureTQON/GW
Bore typeCylindrical with helical groove
Logistics2 parameters
Logistics
ParameterSymbolValue
Product net weight36.6 kg
eClass code23-05-09-10
Performance2 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating1400.0 kN
Basic static load rating3350.0 kN
Properties13 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
Indicative carbon footprint for new product135.0 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF BT4-0021 G/HA1
Document matching
Exact designation, assembly scope, revision and units must agree.

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