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KOYO / Single-row / nup

KOYO NUP318R

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

Technical data available
Bore diameterd
90 mm
Outside diameterD
190 mm
WidthB
43 mm
Dynamic load ratingC
395 kN
Static load ratingC0
355 kN
Limiting speednG
3100 r/min

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 specifications9 parameters
Core specifications
ParameterSymbolValue
Variant / constructionSingle-row / NUP
Bore diameterd90 mm
Outside diameterD190 mm
WidthB43 mm
Basic dynamic load ratingC395 kN
Basic static load ratingC0355 kN
Fatigue load limitPu50.6 kN
Limiting speednG3100 r/min
Mass≈m5.75 kg
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key040-010-000
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathCylindrical roller bearings - Single-row - NUP
Official Classification 1Cylindrical roller bearings / Single-row / NUP
Technical Data26 parameters
Technical Data
ParameterSymbolValue
d90 mm
D190 mm
B43 mm
R(Min.)3 mm
R1(Min.)3 mm
Fw113.5 mm
Ew- mm
Basic Load Ratings : Cr395 kN
Basic Load Ratings : C0R355 kN
Fatigue Load Limit : Cu50.6 kN
Limiting Speeds(Grease Lub.)3100 min-1
Limiting Speeds(Oil Lub.)4100 min-1
Sd1- mm
B1- mm
B2- mm
Da(Min.)103 mm
Db(Min.)103 mm
Db(Max.)111 mm
Dc(Min.)- mm
Dd(Min.)- mm
Da(Max.)177 mm
Db(Max.)- mm
Db(Min.)- mm
Ra(Max.)2.5 mm
Rb(Max.)2.5 mm
Mass(Refer.)5.75 kg

Technical documents & data sheet

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Record identity
KOYO NUP318R
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