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KOYO / Radial needle roller and cage assemblies / metric series / k,k.zw

KOYO K44X50X30,5HZW

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

Technical data available
Dynamic load ratingC
35.5 kN
Static load ratingC0
70.5 kN
Limiting speednG
6400 r/min
Mass≈m
0.068 kg
Fw
44 mm
Ew
50 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 specifications6 parameters
Core specifications
ParameterSymbolValue
Variant / constructionRadial needle roller and cage assemblies / Metric series / K,K.ZW
Basic dynamic load ratingC35.5 kN
Basic static load ratingC070.5 kN
Fatigue load limitPu10.7 kN
Limiting speednG6400 r/min
Mass≈m0.068 kg
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key090-010-010
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathNeedle roller bearings - Radial needle roller and cage assemblies - Metric series - K,K.ZW
Official Classification 1Needle roller bearings / Radial needle roller and cage assemblies / Metric series / K,K.ZW
Technical Data14 parameters
Technical Data
ParameterSymbolValue
Fw44 mm
Ew50 mm
Bc30 mm
Basic Load Ratings : Cr35.5 kN
Basic Load Ratings : C0R70.5 kN
Fatigue Load Limit : Cu10.7 kN
Cage Material P/SS
Limiting Speeds(Grease Lub.)6400 min-1
Limiting Speeds(Oil Lub.)9900 min-1
Recommended Dimensions Shaft : S(Max.)44.000 mm
Recommended Dimensions Shaft : S(Min.)43.989 mm
Recommended Dimensions Housing : H(Max.)50.025 mm
Recommended Dimensions Housing : H(Min.)50.009 mm
Mass(Refer.)0.068 kg

Technical documents & data sheet

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Record identity
KOYO K44X50X30,5HZW
Document matching
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