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INA / Axial cylindrical roller bearing

INA 81276-M

Axial cylindrical roller bearing technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
380 mm
Outside diameterD
520 mm
WidthB
112 mm
Limiting speednG
640 r/min
Mass≈m
78.1 kg
Bore Diameter (D)
380 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 specifications9 parameters
Core specifications
ParameterSymbolValue
Series81276
Bore diameterd380 mm
Outside diameterD520 mm
WidthB112 mm
Reference speednref193 r/min
Limiting speednG640 r/min
Mass≈m78.1 kg
Minimum operating temperatureTmin-30 °C
Maximum operating temperatureTmax120 °C
Manufacturer Identity5 parameters
Manufacturer Identity
ParameterSymbolValue
Schaeffler Product Code395927
BrandINA
Base Type81276
Old Designation["812 76 M"]
X Life Markingn.r.
Product Identity2 parameters
Product Identity
ParameterSymbolValue
ConstructionAxial cylindrical roller bearing 812..-M, single row
Short DescriptionAxial cylindrical roller bearing
Technical Data16 parameters
Technical Data
ParameterSymbolValue
Bore Diameter (D)380 mm
Outside Diameter (D)520 mm
Width (B)112 mm
Basic Dynamic Load Rating, Axial (Ca)2,800,000 N
Basic Static Load Rating, Axial (C0A)11,100,000 N
Operating Temperature Min. (Tmin)-30 °C
Minimum Diameter Shaft Shoulder (Da)511 mm
Operating Temperature Max. (Tmax)120 °C
Limiting Speed (Ng)640 1/min
Reference Speed (Nϑr)193 1/min
Maximum Recess Radius (Ra Max)4 mm
Maximum Diameter Of Housing Shoulder (Da)413 mm
Rip Diameter Shaft Washer (D1)515 mm
Bore Diameter Housing Washer (D1)385 mm
Minimum Chamfer Dimension (Rmin)4 mm
Fatigue Load Limit, Axial (Cua)910,000 N

Technical documents & data sheet

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Record identity
INA 81276-M
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