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INA / Needle roller cage assembly

INA K45X53X21

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

Technical data available
Bore diameterd
45 mm
Outside diameterD
53 mm
WidthB
21 mm
Dynamic load ratingC
38.5 kN
Static load ratingC0
67 kN
Limiting speednG
10000 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 diameterd45 mm
Outside diameterD53 mm
WidthB21 mm
Basic dynamic load ratingC38.5 kN
Basic static load ratingC067 kN
Fatigue load limitPu8.8 kN
Reference speednref5600 r/min
Limiting speednG10000 r/min
Mass≈m0.059 kg
Minimum operating temperatureTmin-30 °C
Maximum operating temperatureTmax140 °C
Manufacturer Identity3 parameters
Manufacturer Identity
ParameterSymbolValue
Schaeffler Product Code379750
BrandINA
Base TypeK45X53X21
Product Identity2 parameters
Product Identity
ParameterSymbolValue
ConstructionNeedle roller cage assembly K, single row
Short DescriptionNeedle roller cage assembly
Technical Data10 parameters
Technical Data
ParameterSymbolValue
Inner Diameter Of Needle Roller Complement (Fw)45 mm
Outside Diameter Of Needle Roller Complement (Ew)53 mm
Width (Bc)21 mm
Basic Dynamic Load Rating, Radial (Cr)38,500 N
Basic Static Load Rating, Radial (C0R)67,000 N
Operating Temperature Min. (Tmin)-30 °C
Operating Temperature Max. (Tmax)140 °C
Limiting Speed (Limiting Spe)10,000 1/min
Reference Speed (Nϑr)5,600 1/min
Fatigue Load Limit, Radial (Cur)8,800 N

Technical documents & data sheet

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Record identity
INA K45X53X21
Document matching
Exact designation, assembly scope, revision and units must agree.

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