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INA / Axial cylindrical roller bearing

INA 81272-M

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

Technical data available
Bore diameterd
360 mm
Outside diameterD
500 mm
WidthB
110 mm
Limiting speednG
650 r/min
Mass≈m
71.13 kg
Bore Diameter (D)
360 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
Series81272
Bore diameterd360 mm
Outside diameterD500 mm
WidthB110 mm
Reference speednref197 r/min
Limiting speednG650 r/min
Mass≈m71.13 kg
Minimum operating temperatureTmin-30 °C
Maximum operating temperatureTmax120 °C
Manufacturer Identity5 parameters
Manufacturer Identity
ParameterSymbolValue
Schaeffler Product Code395925
BrandINA
Base Type81272
Old Designation["812 72 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)360 mm
Outside Diameter (D)500 mm
Width (B)110 mm
Basic Dynamic Load Rating, Axial (Ca)2,700,000 N
Basic Static Load Rating, Axial (C0A)10,700,000 N
Operating Temperature Min. (Tmin)-30 °C
Minimum Diameter Shaft Shoulder (Da)492 mm
Operating Temperature Max. (Tmax)120 °C
Limiting Speed (Ng)650 1/min
Reference Speed (Nϑr)197 1/min
Maximum Recess Radius (Ra Max)4 mm
Maximum Diameter Of Housing Shoulder (Da)393 mm
Rip Diameter Shaft Washer (D1)495 mm
Bore Diameter Housing Washer (D1)365 mm
Minimum Chamfer Dimension (Rmin)4 mm
Fatigue Load Limit, Axial (Cua)850,000 N

Technical documents & data sheet

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Record identity
INA 81272-M
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