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SKF / Needle roller bearings

SKF RNA 4904 RS

Single row needle roller bearing with machined rings, with flanges and integral sealing, without inner ring technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Outside diameterD
37 mm
WidthB
17 mm
Dynamic load ratingC
22 kN
Static load ratingC0
22.4 kN
Limiting speednG
7500 r/min
Mass≈m
0.06 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 specifications13 parameters
Core specifications
ParameterSymbolValue
Variant / constructionNeedle roller bearings
Outside diameterD37 mm
WidthB17 mm
Basic dynamic load ratingC22 kN
Basic static load ratingC022.4 kN
Fatigue load limitPu2.8 kN
Reference speednref15000 r/min
Limiting speednG7500 r/min
Mass≈m0.06 kg
SealingSeal on one side
CageSheet steel
Bearing materialBearing steel
LubricantGrease
Dimensions3 parameters
Dimensions
ParameterSymbolValue
Bore diameter of needle roller complement25.0 mm
Outside diameter37.0 mm
Width17.0 mm
Product identity5 parameters
Product identity
ParameterSymbolValue
Official product categoryNeedle roller bearings
Official taxonomy path/products/rolling-bearings/roller-bearings/needle-roller-bearings/needle-roller-bearings-with-machined-rings
Structure group IDBN1_002
Available from SKFYes
RemanufacturableNo
Engineering — Abutment dimensions2 parameters
Engineering — Abutment dimensions
ParameterSymbolValue
Diameter of housing abutmentD amax. 35 mm
Fillet radiusr amax. 0.3 mm
Engineering — Calculation data6 parameters
Engineering — Calculation data
ParameterSymbolValue
SKF performance classSKF Explorer
Basic dynamic load ratingC22 kN
Basic static load ratingC 022.4 kN
Fatigue load limitP u2.8 kN
Reference speed15000 r/min
Limiting speed7500 r/min
Engineering — Dimensions4 parameters
Engineering — Dimensions
ParameterSymbolValue
Diameter under rollersF w25 mm
Outside diameterD37 mm
WidthC17 mm
Chamfer dimension outer ringr 1,2min. 0.3 mm
Logistics3 parameters
Logistics
ParameterSymbolValue
Product net weight0.06 kg
eClass code23-05-09-03
UNSPSC code31171512
Performance5 parameters
Performance
ParameterSymbolValue
Basic dynamic load rating22.0 kN
Basic static load rating22.4 kN
Reference speed15000.0 r/min
Limiting speed7500.0 r/min
SKF performance classSKF Explorer
Properties14 parameters
Properties
ParameterSymbolValue
Bearing partBearing without inner ring
Number of rows1
Outer ring typeMachined (solid)
Aligning featureWithout
CageSheet steel
Number of flanges, outer ring2
Tolerance classNormal
Material, bearingBearing steel
CoatingWithout
SealingSeal on one side
Sealing typeContact
LubricantGrease
Relubrication featureWith
Indicative carbon footprint for new product0.22 kg CO 2 e

Technical documents & data sheet

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Record identity
SKF RNA 4904 RS
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