NU 312 ECM/C3VL0241

INSOCOAT NU type single row cylindrical roller bearings

INSOCOAT single row cylindrical roller bearings are designed for applications subject to heavy radial loads and high speeds. An electrically insulating coating applied to the outer surface of the inner or outer ring prevents current from passing through the bearing. NU-type bearings with integral flanges on both sides of the outer ring and no flanges on the inner ring allow bi-directional axial displacement. An important feature is the separable design, which facilitates mounting, and the individual parts of the bearing are interchangeable.

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

+86 13817962999

Overview
Technical Parameters

Overview

Skim Through

Size

Inner Diameter 60 mm
Outer diameter 130 mm
Width 31mm

Performance

Basic dynamic load rating 173 kN
Basic rated static load 160 kN
Reference speed 5 600 r/min
Limiting speed 6 700 r/min

Properties

Bearing components 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 Bearing steel
Coating Insulating coating on outer ring
Sealing without
Lubrication without
Relubrication function without

Logistics

Net weight 2.16 kg
eClass Code 23-05-09-01
UNSPSC Code 31171537

Technical Parameters

Technical Parameters

Size

da
min.72mm
Shaft shoulder diameter
max.74mm
max.74mm
Shaft shoulder diameter
db
min.79mm
Shaft shoulder diameter
Da
min.114.5mm
Shaft shoulder diameter
Da
max.118mm
Bearing housing shoulder size
ra
max.2mm
Chamfering radius
rb
max.2mm
Chamfering radius

Shoulder size

da
min.72mm
Shaft shoulder diameter
da
max.74mm
Shaft shoulder diameter
db
min.79mm
Shaft shoulder diameter
Da
min.114.5mm
Shaft shoulder diameter
Da
max.118mm
Bearing housing shoulder size
ra
max.2mm
Chamfering radius
rb
max.2mm
Chamfering radius

Data calculation

Basic dynamic load rating C
173kN
Basic static load rating C0
160kN
Fatigue Load Limit Pu
21.2kN
Reference speed
5 600r/min
Limit speed
6 700r/min
Calculation coefficient kr
0.15

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