NNUP 4964 B/HB1W33

Double row cylindrical roller bearings

Double Row Cylindrical Roller Bearings are designed for applications with high to very heavy radial loads and medium to high speeds. The JOJI product range comprises a wide range of designs and types, such as standard and full complement rollers as well as pre-filled grease and sealed bearings. Depending on the construction of the inner and outer rings, the bearings are available in locating and non-locating designs.

  • High or very high radial load capacity
  • Very low friction
  • Long service life

+86 13817962999

Overview
Technical Parameters

Overview

Skim Through

Size

Inner Diameter320.0mm
Outer Diameter440.0mm
Width118.0mm

Performance

Basic rated dynamic load1020.0kN
Basic rated static load2360.0kN
Reference speed1400.0r/min
Limiting speed1500.0r/min

Properties

Bearing parts Complete set of bearings
Axial displacement capacity None
Number of columns 2
Locating features, bearing outer ring None
Hole type Cylindrical hole
Number of flanges, outer ring 3
Number of flanges, inner ring 1
Piston flange Inner ring piston flange
Radial clearance CN
Tolerance class Normal
Coating Without
Sealing Without
Lubrication without
Relubrication with

Technical Parameters

Technical Parameters

Size

d320.0mm Hole diameter
D440.0mm Outer diameter
B118.0mm Total bearing width
d1 ≈369.0mm Diameter of inner ring retaining edge
D1 ≈399.0mm Outer ring edge diameter
F359.0mm Inner ring raceway diameter
b16.7mm Ring groove width
K9.0mm Lubrication hole diameter
r1,2 min.3.0mm Inner ring chamfer size
r1,2 min.3.0mm Outer ring chamfer size
r3,4 min.3.0mm Inner ring chamfer size
r3,4 min.3.0mm Outer ring chamfering dimensions

Shoulder size

da min.334.0mm Spacer shoulder diameter
Da max.426.0mm Spacer and housing shoulder diameter
ra max.2.5mm Chamfering radius
rb max.2.5mm Chamfering radius

Data calculation

Basic dynamic load rating C1020.0kN
Basic rated static loadC02360.0kN
Fatigue Load LimitPu228.0kN
Reference speed1400.0r/min
Limit speed1500.0r/min
Calculation coefficientkr0.17

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