BT4-0027 AG/HA1

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 Diameter198.438mm
Outer Diameter284.162mm
Total width225.425mm
Inner ring width225.425mm
Outer ring width225.425mm
Contact angle14.75°

Performance

Basic dynamic load rating1760.0kN
Basic rated static load3750.0kN

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 weight45.4kg
eClass Code 23-05-09-10

Technical Parameters

Technical Parameters

Size

d198.438mm Hole diameter
D284.162mm Outer diameter
B225.425mm Total width of bearing inner ring
T225.425mm Total width of bearing outer ring
d1 ≈216.0mm Shaft shoulder diameter
D1 ≈257.0mm Bearing housing shoulder size
r1,2 min.3.3mm Inner ring chamfer size
r3,4 min.3.3mm Outer ring radius (chamfer)

Data calculation

Basic dynamic load rating C1760.0kN
Basic rated static loadC03750.0kN
Fatigue Load LimitPu355.0kN
Radial Specific Load RatingCF430.0kN
Axial specific load ratingCFa84.5kN
Thrust coefficient K1.48
Limit value e0.4
Calculation coefficientY11.7
Calculation factorY22.5
Calculation factorY01.6

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