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KOYO / Combined needle roller bearings / cylindrical roller thrust series / raxz500,naxr,naxr.z

KOYO NAXR25TN

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

Technical data available
Outside diameterD
37 mm
Dynamic load ratingC
18.8 kN
Static load ratingC0
29.8 kN
Limiting speednG
8000 r/min
Mass≈m
0.146 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 / constructionCombined needle roller bearings / Cylindrical roller thrust series / RAXZ500,NAXR,NAXR.Z
Outside diameterD37 mm
Basic dynamic load ratingC18.8 kN
Basic static load ratingC029.8 kN
Fatigue load limitPu4.8 kN
Limiting speednG8000 r/min
Mass≈m0.146 kg
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key090-050-020
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathNeedle roller bearings - Combined needle roller bearings - Cylindrical roller thrust series - RAXZ500,NAXR,NAXR.Z
Official Classification 1Needle roller bearings / Combined needle roller bearings / Cylindrical roller thrust series / RAXZ500,NAXR,NAXR.Z
Technical Data17 parameters
Technical Data
ParameterSymbolValue
Fw25 mm
D37 mm
C30 mm
Dw(E7)25 mm
Da42 mm
C111 mm
C29.5 mm
R(Min.)0.6 mm
Limiting Speeds(Oil Lub.)8000 min-1
Basic Load Ratings : Cr18.8 kN
Basic Load Ratings : C0R29.8 kN
Basic Load Ratings Ca31.2 kN
Basic Load Ratings C0A81.0 kN
Fatigue Load Limit : Cu(Radial)4.80 kN
Fatigue Load Limit : Cu(Thrust)11.4 kN
Used With Inner Ring No.JR20x25x20
Mass(Refer.)0.146 kg

Technical documents & data sheet

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Record identity
KOYO NAXR25TN
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