NU 209 ECM/HC5C3

NU type mixed ceramic single row cylindrical roller bearings

Hybrid ceramic single row cylindrical roller bearings are designed for applications subject to heavy radial loads and high speeds. The inner and outer rings made of bearing steel and the rollers made of bearing grade silicon nitride make the bearings electrically insulating. The ceramic rollers not only protect the bearings from electrical current damage, but also increase the performance of the bearings even under severe operating conditions, thus extending the life of the bearings. NU-type bearings have integral flanges on both sides of the outer ring and no flanges on the inner ring, allowing bi-directional axial displacement. The separable design facilitates mounting, and the various parts of the bearing are interchangeable.

  • High radial load carrying capacity
  • Protection against galvanic corrosion damage
  • Low friction
  • Long service life
  • Can withstand bi-directional axial displacement
  • Separable design

+86 13817962999

Overview
Technical Parameters

Overview

Skim Through

Size

Inner Diameter45.0mm
Outer Diameter85.0mm
Width19.0mm

Performance

Basic rated dynamic load60.5kN
Basic rated static load64.0kN
Reference speed9000.0r/min
Limiting speed12000.0r/min

Properties

Bearing parts Complete set of bearings
Axial displacement capacity In both directions
Number of columns 1
Locating feature, bearing outer ring None
Hole type Cylindrical bore
Cage Machined metal
Number of flanges, outer ring 2
Number of retaining edges, inner ring 0
Loop flange no
Radial clearance C3
Tolerance class Normal
Material, bearing Composite material
Coated Without
Sealing Without
Lubricant without
Relubrication function without

Logistics

Net weight0.426kg
eClass Code 23-05-08-01
UNSPSC Code 31171504

Technical Parameters

Technical Parameters

Size

d45.0mm Hole diameter
D85.0mm Outer diameter
B19.0mm Width
D1 ≈73.0mm Outer ring retaining edge diameter
F54.5mm Inner ring raceway diameter
s1.2mm Allowable axial displacement of the bearing ring relative to other rings in normal position", "qualifier" : "max.
r1,2 min.1.1mm Chamfering dimensions
r3,4 min.1.1mm Chamfer size

Shoulder size

da min.52.0mm Shaft shoulder diameter
da max.53.0mm Shaft shoulder diameter
db min.56.0mm Shaft shoulder diameter
Da max.77.6mm Bearing housing shoulder size
ra max.1.0mm Chamfering radius
rb max.1.0mm Chamfering radius

Data calculation

Basic dynamic load rating C60.5kN
Basic rated static loadC0 64kN
Fatigue Load LimitPu6.95kN
Reference speed 9000r/min
Limit speed 12000r/min
Calculation coefficientkr0.15

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