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INA / Needle roller bearings

INA NKS37

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

Technical data available
Bore diameterd
37 mm
Outside diameterD
52 mm
WidthB
22 mm
Dynamic load ratingC
36.5 kN
Static load ratingC0
50 kN
Limiting speednG
11700 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 specifications11 parameters
Core specifications
ParameterSymbolValue
Bore diameterd37 mm
Outside diameterD52 mm
WidthB22 mm
Basic dynamic load ratingC36.5 kN
Basic static load ratingC050 kN
Fatigue load limitPu7 kN
Reference speednref7100 r/min
Limiting speednG11700 r/min
Mass≈m0.127 kg
Minimum operating temperatureTmin-30 °C
Maximum operating temperatureTmax120 °C
Manufacturer Identity5 parameters
Manufacturer Identity
ParameterSymbolValue
Schaeffler Product Code383030
BrandINA
Base TypeNKS37
Old Designation["NKS 37"]
X Life Markingn.r.
Product Identity2 parameters
Product Identity
ParameterSymbolValue
ConstructionNeedle roller bearing NKS, single row, no inner ring, outer ring with 2 bords
Short DescriptionNeedle roller bearing
Technical Data11 parameters
Technical Data
ParameterSymbolValue
Under Roller Diameter (Fw)37 mm
Outside Diamater (D)52 mm
Width, Outer Ring (C)22 mm
Basic Dynamic Load Rating, Radial (Cr)36,500 N
Basic Static Load Rating, Radial (C0R)50,000 N
Operating Temperature Min. (Tmin)-30 °C
Operating Temperature Max. (Tmax)120 °C
Limiting Speed (Limiting Spe)11,700 1/min
Reference Speed (Nϑr)7,100 1/min
Minimum Chamfer Dimension (Rmin)0.6 mm
Fatigue Load Limit, Radial (Cur)7,000 N

Technical documents & data sheet

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Record identity
INA NKS37
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