BC4-0093

Four-row cylindrical roller bearings for long product rolling mills

Four-row cylindrical roller bearings are designed for applications with extreme radial loads and medium to high speeds. The bearings are optimised for the operating conditions commonly found in long product mills, resulting in improved performance and lower total cost of ownership. Different design combinations of outer rings, inner rings, retaining rings, etc. are available to meet different application requirements. An important feature is the separable design, which facilitates mounting, with the individual parts of the bearing being interchangeable.

  • Particularly high radial load carrying capacity
  • Low friction
  • Long service life
  • Small cross-section
  • Can withstand bi-directional axial displacements
  • Separable and interchangeable parts

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Overview
Technical Parameters

Overview

Skim Through

Size

Inner Diameter127.0mm
Outer Diameter174.65mm
Width150.812mm

Performance

Basic rated dynamic load780.0kN
Basic rated static load1320.0kN
Reference speed2800.0r/min
Limiting speed4000.0r/min
JOJI Performance Class JOJI

Properties

Bearing parts Complete set of bearings
Number of columns 4
Locating features, bearing outer ring None
Hole type Cylindrical bore
Cage Machined metal
Number of flanges, outer ring 5
Number of retaining edges, inner ring 0
Loop flange None
Radial clearance C4P
Coating without
Sealing without
Seal Type Not Applicable
Lubricant None
Relubrication function Without

Logistics

Net weight10.6kg

Technical Parameters

Technical Parameters

Size

d127.0mm Hole diameter
D174.65mm Outer diameter
B150.812mm Total bearing width on inner ring
C150.812mm Total bearing width on outer ring
D1 ≈158.9mm Diameter of outer ring retaining edge
F139.5mm Inner ring raceway diameter
r1,2 min.1.1mm Inner ring corner radius and chamfer
r3,4 min.1.5mm Outer ring chamfer size
s6.0mm Allowable axial displacement of the bearing ring in normal position relative to other rings

Data calculation

JOJI performance class JOJI
Basic dynamic load rating C780.0kN
Basic static load ratingC01320.0kN
Fatigue Load LimitPu153.0kN

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