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INA / Needle roller cage assembly

INA K50X55X30

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

Technical data available
Bore diameterd
50 mm
Outside diameterD
55 mm
WidthB
30 mm
Dynamic load ratingC
39 kN
Static load ratingC0
97 kN
Limiting speednG
9300 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 diameterd50 mm
Outside diameterD55 mm
WidthB30 mm
Basic dynamic load ratingC39 kN
Basic static load ratingC097 kN
Fatigue load limitPu14.1 kN
Reference speednref5400 r/min
Limiting speednG9300 r/min
Mass≈m0.0657 kg
Minimum operating temperatureTmin-30 °C
Maximum operating temperatureTmax140 °C
Manufacturer Identity4 parameters
Manufacturer Identity
ParameterSymbolValue
Schaeffler Product Code379776
BrandINA
Base TypeK50X55X30
X Life Markingn.r.
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)50 mm
Outside Diameter Of Needle Roller Complement (Ew)55 mm
Width (Bc)30 mm
Basic Dynamic Load Rating, Radial (Cr)39,000 N
Basic Static Load Rating, Radial (C0R)97,000 N
Operating Temperature Min. (Tmin)-30 °C
Operating Temperature Max. (Tmax)140 °C
Limiting Speed (Limiting Spe)9,300 1/min
Reference Speed (Nϑr)5,400 1/min
Fatigue Load Limit, Radial (Cur)14,100 N

Technical documents & data sheet

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Record identity
INA K50X55X30
Document matching
Exact designation, assembly scope, revision and units must agree.

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