BC4-0118

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 Diameter170.0mm
Outer Diameter230.0mm
Width160.0mm

Performance

Basic rated dynamic load1370.0kN
Basic rated static load2360.0kN
Reference speed2000.0r/min
Limiting speed3000.0r/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 C4
Coating without
Sealing without
Seal Type Not Applicable
Lubricant None
Relubrication function with

Logistics

Net weight18.3kg

Technical Parameters

Technical Parameters

Size

d170.0mm Hole diameter
D230.0mm Outer diameter
B160.0mm Total bearing width on inner ring
C160.0mm Total bearing width on outer ring
D1 ≈211.5mm Diameter of outer ring retaining edge
F185.5mm Inner ring raceway diameter
b6.0mm Ring groove width
K3.5mm Lubrication hole diameter (outer ring)
r1,2 min.2.0mm Inner ring fillet radius and chamfer
r3,4 min.2.0mm Outer ring chamfer size
s2.0mm Allowable axial displacement of the bearing ring in normal position relative to other rings

Data calculation

JOJI performance class JOJI
Basic dynamic load rating C1370.0kN
Basic static load ratingC02360.0kN
Fatigue Load LimitPu255.0kN

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