BT4-0040 E8/C355

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 Diameter220.662mm
Outer diameter314.325mm
Total width239.712mm
Inner ring width239.712mm
Outer ring width239.712mm
Contact angle14.667°

Performance

Basic dynamic load rating2120.0kN
Basic static load rating4000.0kN
JOJI Performance Class JOJI

Properties

Bearing components 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
Sealed Sealed on both sides
Seal Type Contact
Lubricant No
Relubrication function Without

Logistics

Net weight56.3kg
eClass Code 23-05-09-10

Technical Parameters

Technical Parameters

Size

d220.662mm Hole diameter
D314.325mm Outer diameter
B239.712mm Total width of bearing inner ring
T239.712mm Total width of bearing outer ring
d1 ≈241.0mm Shaft shoulder diameter
D1 ≈281.0mm Bearing housing shoulder size
r1,2 min.1.5mm Inner ring chamfer size
r3,4 min.3.3mm Outer ring radius (chamfer)

Data calculation

JOJI Performance Class JOJI
Basic dynamic load rating C2120.0kN
Basic static load ratingC04000.0kN
Fatigue Load LimitPu365.0kN
Radial Specific Load RatingCF510.0kN
Axial specific load ratingCFa98.0kN
Thrust coefficient K1.49
Limit value e0.4
Calculation coefficientY11.7
Calculation factorY22.5
Calculation factorY01.6

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