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KOYO / Heavy-duty needle roller bearings / metric series, caged, without inner ring

KOYO RNA4904

Needle roller bearings technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Outside diameterD
37 mm
Dynamic load ratingC
21.3 kN
Static load ratingC0
25.5 kN
Limiting speednG
12000 r/min
Mass≈m
0.061 kg
Fw
25 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 specifications7 parameters
Core specifications
ParameterSymbolValue
Variant / constructionHeavy-duty needle roller bearings / Metric series, caged, without inner ring
Outside diameterD37 mm
Basic dynamic load ratingC21.3 kN
Basic static load ratingC025.5 kN
Fatigue load limitPu3.95 kN
Limiting speednG12000 r/min
Mass≈m0.061 kg
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key090-030-010
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathNeedle roller bearings - Heavy-duty needle roller bearings - Metric series, caged, without inner ring
Official Classification 1Needle roller bearings / Heavy-duty needle roller bearings / Metric series, caged, without inner ring
Technical Data11 parameters
Technical Data
ParameterSymbolValue
Fw25 mm
D37 mm
C17 mm
R(Min.)0.3 mm
Basic Load Ratings : Cr21.3 kN
Basic Load Ratings : C0R25.5 kN
Fatigue Load Limit : Cu3.95 kN
Limiting Speeds(Grease Lub.)12000 min-1
Limiting Speeds(Oil Lub.)18000 min-1
(Refer.)Mass0.061? kg
Mass(Refer.)0.061? kg

Technical documents & data sheet

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Record identity
KOYO RNA4904
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