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SKF / Tapered roller bearings

SKF LM 503349 A/310/QCL7C

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

Technical data available
Bore diameterd
45.987 mm
Outside diameterD
74.975 mm
Dynamic load ratingC
54 kN
Static load ratingC0
71 kN
Limiting speednG
8500 r/min
Mass≈m
0.295 kg

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 specifications11 parameters
Core specifications
ParameterSymbolValue
Variant / constructionTapered roller bearings
Bore diameterd45.987 mm
Outside diameterD74.975 mm
Basic dynamic load ratingC54 kN
Basic static load ratingC071 kN
Reference speednref6300 r/min
Limiting speednG8500 r/min
Mass≈m0.295 kg
SealingWithout
CageSheet metal
LubricantNone
Dimensions6 parameters
Dimensions
ParameterSymbolValue
Bore diameter45.987 mm
Outside diameter74.975 mm
Width, total18.0 mm
Width, inner ring18.0 mm
Width, outer ring14.0 mm
Contact angle15.0 °
Product identity5 parameters
Product identity
ParameterSymbolValue
Official product categoryTapered roller bearings
Official taxonomy path/products/rolling-bearings/roller-bearings/tapered-roller-bearings/single-row-tapered-roller-bearings
Structure group IDBT1_001_101
Available from SKFYes
RemanufacturableNo
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight0.295 kg
eClass code23-05-09-10
UNSPSC code31171516
Performance4 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating54.0 kN
Basic static load rating71.0 kN
Reference speed6300.0 r/min
Limiting speed8500.0 r/min
Properties13 parameters
Properties
ParameterSymbolValue
Bearing partComplete bearing
Number of rows1
Locating feature, bearing outer ringWithout
Bore typeCylindrical
CageSheet metal
Arrangement of contact angle (double-row bearing)Not applicable
Matched arrangementNo
CoatingWithout
SealingWithout
LubricantNone
Relubrication featureWithout
Unit systemInch
Indicative carbon footprint for new product1.1 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF LM 503349 A/310/QCL7C
Document matching
Exact designation, assembly scope, revision and units must agree.

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