BCZ-0512

backspindle shaft bearing

Backing bearings have been developed specifically for cluster cold rolling mills, but can also be used for other applications such as straightening or bending machines. These bearings have a special thick-walled outer ring and can be mounted on fixed support shafts to form backing or straightening rolls.

  • Ultra-precision quality enables runout tolerances to be realised
  • Tight cross-section height tolerances
  • Designed for high loads

+86 13817962999

Overview
Technical Parameters

Overview

Skim Through

Size

Inner Diameter90.0mm
Functional outer diameter220.0mm
Inner ring width122.0mm
Outer ring width119.0mm

Performance

Basic rated dynamic load468.0kN
Basic rated static load600.0kN

Properties

Bearing parts Complete set of bearings
Number of columns 2
Hole type Cylindrical bore
Cage Machined metal
Design with axial guide
Radial clearance NSTD
Tolerance class P4
Coated without
Sealing with seal on both sides
Seal type Gap type
Relubrication function with

Logistics

Net weight26.7kg
UNSPSC Code 31171505

Technical Parameters

Technical Parameters

Size

D220.0mm Outer diameter
d90.0mm Hole diameter
H max.65.0mm Section height
B122.0mm Total bearing width on inner ring
C119.0mm Total bearing width on outer ring
d1 ≈140.0mm Outer diameter of retaining edge
D1 ≈147.0mm Outer ring retaining edge diameter/seat ring inner diameter
b10.2mm Inner ring lubrication groove width
r min.2.0mm Outer ring chamfer size ]}, Lubrication hole
K6.0mm Lubrication hole diameter
6.0mm Number of holes

Data calculation

Basic dynamic load rating C 468kN
Basic rated static loadC0 600kN
Fatigue Load LimitPu 72kN
Maximum radial dynamic loadFr 440kN
Maximum radial static loadF0r 630kN

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