331480 G

Four-row tapered roller bearings

Four-row tapered roller bearings are capable of carrying combined radial and axial loads at low to medium speeds. They are only used in work roll equipment applications such as rolling mills. JOJI manufactures four-row tapered roller bearings of types TQO and TQI in many variants and with different characteristics.

  • High radial load carrying capacity
  • Capable of withstanding bi-directional axial loads
  • Saving of axial space for roll necks
  • Long service life

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Overview
Technical Parameters

Overview

Skim Through

Size

Inner Diameter177.8mm
Outer Diameter247.65mm
Total width192.088mm
Inner ring width192.088mm
Outer ring width192.088mm
Contact angle16.333°

Performance

Basic dynamic load rating1230.0kN
Basic rated static load3000.0kN

Properties

Bearing parts Complete set of bearings
Number of columns 4
Locating features, bearing outer ring None
Hole type Cylinder with spiral groove
Cage Steel plate
Arrangement of contact angles (double row bearing) Not applicable
Mating configuration Not available
Coating without
Sealing Without
Seal Type Not Applicable
Lubricant None
Relubrication function with

Logistics

Net weight28.6kg
eClass Code 23-05-09-10

Technical Parameters

Technical Parameters

Size

d177.8mm Hole diameter
D247.65mm Outer diameter
B192.088mm Total width of bearing inner ring
T192.088mm Total width of bearing outer ring
d1 ≈190.0mm Shaft shoulder diameter
D1 ≈222.0mm Bearing housing shoulder size
r1,2 min.1.5mm Inner ring chamfer size
r3,4 min.3.3mm Outer ring radius (chamfer)

Data calculation

Basic dynamic load rating C1230.0kN
Basic rated static loadC03000.0kN
Fatigue Load LimitPu280.0kN
Radial Specific Load RatingCF360.0kN
Axial specific load ratingCFa78.2kN
Thrust coefficient K1.33
Limit value e0.44
Calculation coefficientY11.5
Calculation factorY22.3
Calculation factorY01.4

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