31306

Category:
Single Row Tapered Roller Bearing

Engineered for performance and precision, single row tapered roller bearings are ideal for handling combined radial and axial loads with minimal friction. Their design allows the inner ring—along with the rollers and cage—to be installed separately from the outer ring, making assembly, disassembly, and maintenance remarkably straightforward.

Thanks to their separable and interchangeable components, these bearings offer exceptional versatility. When mounted in pairs with preload, they provide a rigid and stable bearing arrangement, perfect for demanding applications.

Key Advantages:

  • High capacity for both radial and axial loads
  • Supports axial forces in a single direction
  • Designed for low friction and extended service life
  • Separable, interchangeable components for easy installation and maintenance
 

Dimensions

Bore diameter30 mm
Outside diameter72 mm
Width, total20.75 mm
Width, inner ring19 mm
Width, outer ring14 mm
Contact angle28.811 °

Performance

Basic dynamic load rating58.3 kN
Basic static load rating50 kN
Reference speed7 500 r/min
Limiting speed9 500 r/min

Properties

Bearing partComplete bearing
Number of rows1
Locating feature, bearing outer ringNone
Bore typeCylindrical
CageSheet metal
Matched arrangementNo
CoatingWithout
SealingWithout
Relubrication featureWithout
Unit systemMetric

Logistics

Product net weight0.385 kg
eClass code
UNSPSC code

Dimensions

d 30 mmBore diameter
D72 mmOutside diameter
T20.75 mmTotal width
d1≈52.75 mmShoulder diameter of inner ring
B19 mmWidth of inner ring
C14 mmWidth of outer ring
r1,2 min.1.5 mmChamfer dimension of inner ring
r3,4 min.1.5 mmChamfer dimension of outer ring
a 22.4 mmDistance side face to pressure point

Abutment Dimensions

damax.40 mmDiameter of shaft abutment
dbmin.38.5 mmDiameter of shaft abutment
Damin.55 mmDiameter of housing abutment
Da max.64.5 mmDiameter of housing abutment
Dbmin.68 mmDiameter of housing abutment
Camin.3 mmMinimum width of space required in housing on large side face
Cbmin.6.5 mmMinimum width of space required in housing on small side face
ramax.1.5 mmRadius of shaft fillet
rbmax.1.5 mmRadius of housing fillet
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