NCF 3008 CV

NCF type single row full complement cylindrical roller bearings

Single row full complement cylindrical roller bearings are designed for applications with extremely heavy radial loads and medium speeds. The bearings can be fitted with more rollers as they do not have a cage. The NCF type bearings have an integral retaining edge on both sides of the inner ring and a retaining edge on one side of the outer ring, allowing unidirectional axial displacement. A retaining ring on the outer ring holds the bearing components together. The retaining ring cannot be subjected to axial loads during operation.

  • High radial load carrying capacity
  • High radial stiffness
  • Long service life
  • Unidirectional axial positioning of the shaft is possible

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Overview
Technical Parameters

Overview

Skim Through

Size

Inner Diameter40.0mm
Outer Diameter68.0mm
Width21.0mm

Performance

Basic rated dynamic load57.2kN
Basic rated static load69.5kN
Reference speed4800.0r/min
Limiting speed6000.0r/min

Properties

Bearing parts Complete set of bearings
Axial displacement capacity In one direction
Number of columns 1
Locating feature, bearing outer ring None
Hole type Cylindrical bore
Cage without
Design Non-detachable
Number of flanges, outer ring 1
Number of flanges, inner ring 2
Loop flange no
Radial clearance CN
Tolerance class Normal
Coating Without
Sealing Without
Lubrication without
Relubrication function without

Logistics

Net weight0.302kg
eClass Code 23-05-09-01
UNSPSC Code 31171505

Technical Parameters

Technical Parameters

Size

d40.0mm Hole diameter
D68.0mm Outer diameter
B21.0mm Width
d1 ≈50.0mm Diameter of inner ring retaining edge
D1 ≈58.0mm Outer ring edge diameter
E61.74mm Outer ring raceway diameter
s2.0mm Allowable axial displacement of the bearing collar in normal position relative to the other collar", "qualifier" : "max.
r1,2 min.1.0mm Chamfering dimensions
r3,4 min.0.3mm Chamfer size
The parameter r3.4 has the parameter specified here or the same parameter as r1.2.

Shoulder dimensions

da min.45.0mm Shaft shoulder diameter
das max.63.0mm Shaft shoulder diameter47.9mm
Da Bearing housing shoulder size
Db max.65.0mm Bearing housing shoulder size
ra max.1.0mm Chamfering radius
rb max.0.3mm Chamfering radius

Data calculation

Basic dynamic load rating C57.2kN
Basic rated static loadC069.5kN
Fatigue Load LimitPu8.15kN
Reference speed4800.0r/min
Limit speed6000.0r/min
Calculation coefficientkr0.3
Limit value e0.3
Calculation coefficient Y0.4

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