331945

Double row tapered roller bearings

JOJI double row tapered roller bearings are available in a wide range of designs and types, such as double row tapered roller bearings of the TDI and TDO types, as well as paired single row tapered roller bearings. Depending on the design, the bearings are able to withstand high radial loads and bi-directional axial loads with high rigidity.

  • High radial load carrying capacity
  • Capable of withstanding bi-directional axial loads (except in tandem arrangement)
  • High rigidity
  • Low friction
  • Long service life

+86 13817962999

Overview
Technical Parameters

Overview

Skim Through

Size

Inner Diameter228.6mm
Outer Diameter488.95mm
Total width203.2mm
Inner ring width254.0mm
Outer ring width152.4mm
Contact angle32.0°

Performance

Basic dynamic load rating3143.0kN
Basic static load rating4500.0kN

Properties

Bearing parts Complete set of bearings
Number of columns 2
Locating features, bearing outer ring None
Hole type Cylindrical bore
Cage Steel plate
Arrangement of contact angles (double row bearing) Back-to-Back (O)
Mating Configuration None
Coated Without
Sealed Without
Lubrication without
Relubrication function without

Logistics

Net weight205.0kg
eClass Code 23-05-09-10

Technical Parameters

Technical Parameters

Size

d228.6mm Hole diameter
D488.95mm Outer diameter
T254.0mm Total width
C152.4mm Outer ring width
d1 ≈253.0mm Shaft shoulder diameter
d1 ≈400.0mm Shaft shoulder diameter
D1 ≈0.0mm Bearing seat shoulder diameter
D1 ≈456.0mm Bearing housing shoulder diameter
r1,2 min.6.4mm Inner ring chamfer size
r3,4 min.1.5mm Outer ring chamfer size
r3,4 min.1.5mm Outer ring chamfer size
a326.405mm Distance between pressure points

Data calculation

Basic dynamic load rating3143.0 Basic dynamic load rating
Basic static load rating4500.0 Basic static load rating
Fatigue load limit390.0 Fatigue load limit
Limit value0.94 Limit value
Calculation factor0.72 Calculation Factor
Calculation factor1.07 Calculation factor
Calculation factor0.7 Calculation factor
Radial specific load rating735.0 Radial specific load rating
Axial specific load rating669.0 Axial specific load rating
Thrust coefficient0.62 Thrust coefficient

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