330782 AG

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

+86 13817962999

Overview
Technical Parameters

Overview

Skim Through

Size

Inner Diameter241.478mm
Outer Diameter349.148mm
Total Width228.6mm
Inner ring width228.6mm
Outer ring width228.6mm
Contact angle13.25°

Performance

Basic dynamic load rating2160.0kN
Basic rated static load5000.0kN

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 weight74.7kg
eClass Code 23-05-09-10

Technical Parameters

Technical Parameters

Size

d241.478mm Hole diameter
D349.148mm Outer diameter
B228.6mm Total width of bearing inner ring
T228.6mm Total width of bearing outer ring
d1 ≈268.0mm Shaft shoulder diameter
D1 ≈ 312.0mm Bearing housing shoulder size
r1,2 min.2.0mm Inner ring chamfer size
r3,4 min.3.3mm Outer ring radius (chamfer)

Data calculation

Basic dynamic load rating C2160.0kN
Basic rated static loadC05000.0kN
Fatigue Load LimitPu455.0kN
Radial Specific Load RatingCF570.0kN
Axial specific load ratingCFa98.8kN
Thrust coefficient K1.65
Limit value e0.35
Calculation coefficientY11.9
Calculation factorY22.9
Calculation factorY01.8

Copyright © JOJI. All Rights Reserved. Website Maintenance Registration Number: Su ICP No. 2024128229-1