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

KOYO K68X74X28CH

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

Technical data available
Dynamic load ratingC
44.8 kN
Static load ratingC0
110 kN
Limiting speednG
4000 r/min
Mass≈m
0.082 kg
Fw
68 mm
Ew
74 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 ratingC44.8 kN
Basic static load ratingC0110 kN
Fatigue load limitPu17.1 kN
Limiting speednG4000 r/min
Mass≈m0.082 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
Fw68 mm
Ew74 mm
Bc28 mm
Basic Load Ratings : Cr44.8 kN
Basic Load Ratings : C0R110 kN
Fatigue Load Limit : Cu17.1 kN
Cage Material P/SS
Limiting Speeds(Grease Lub.)4000 min-1
Limiting Speeds(Oil Lub.)6100 min-1
Recommended Dimensions Shaft : S(Max.)68.000 mm
Recommended Dimensions Shaft : S(Min.)67.987 mm
Recommended Dimensions Housing : H(Max.)74.029 mm
Recommended Dimensions Housing : H(Min.)74.010 mm
Mass(Refer.)0.082 kg

Technical documents & data sheet

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Record identity
KOYO K68X74X28CH
Document matching
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