NNF 5008 ADB-2LSV

Double-row full complement cylindrical roller bearings of type NNF with embedded seals, to be supplemented with lubrication

Double row full complement cylindrical roller bearings can be fitted with more rollers and are therefore suitable for very high radial loads as well as medium speeds. The NNF-type bearings have three stops on the double-half inner ring and one stop in the centre of the outer ring for bi-directional positioning on the shaft. Two stop grooves on the outer ring simplify mounting and save axial space.

  • High radial load carrying capacity
  • High radial stiffness
  • Long service life
  • Bidirectional axial positioning of the shaft possible
  • Seals for increased reliability with supplementary lubrication

+86 13817962999

Overview
Technical Parameters

Overview

Skim Through

Size

Inner Diameter40.0mm
Outer Diameter68.0mm
Width38.0mm

Performance

Basic rated dynamic load85.8kN
Basic rated static load116.0kN
Limiting speed2000.0r/min

Properties

Bearing parts Complete set of bearings
Axial displacement capacity None
Number of columns 2
Locating features, bearing outer ring Stop groove
Hole type Cylindrical hole
Cage without
Number of flanges, outer ring 1
Number of retaining edges, inner ring 2
Loop flanges no
Radial clearance CN
Tolerance class Normal
Coating Without
Sealing With seal on both sides
Seal Type Contact
Lubricant Grease
Relubrication function with

Logistics

Net weight0.529kg
eClass Code 23-05-09-01
UNSPSC Code 31171505

Technical Parameters

Technical Parameters

Size

d40.0mm Hole diameter
D68.0mm Outer diameter
B38.0mm Width
C37.0mm Outer ring width (sealed bearing)
d1 ≈51.4mm Inner ring retaining edge diameter
D3 min.65.8mm Diameter of outer ring stop groove
C132.2mm Distance between two stop grooves on the outer surface of the outer ring
+ 0.2mm Distance tolerance C1
C22.4mm Distance from the side of the outer ring to the stop ring groove (sealed bearing)
b2.7mm Width of outer ring stop groove
b17.5mm Outer ring lubrication groove width
K4.5mm Lubrication hole diameter (outer ring)
r0.8mm Chamfer size (sealed bearing)
r3,4 min.0.6mm Chamfer size

Shoulder size

da min.44.0mm Shaft shoulder diameter
das max.0.4mm Shaft shoulder diameter49.2mm
Ca1 Shoulder width for SW stop rings (sealed bearings)28.0mm
- 0.2mm Shoulder tolerance Ca (SW stop ring)
Ca2 Shoulder width for DIN 471 non-return rings (sealed bearings)27.0mm
- 0.2mm Shoulder tolerance Ca (DIN 471 stop collar)
ra Chamfer radius

Data calculation

Basic dynamic load rating C85.8kN
Basic rated static loadC0116.0kN
Fatigue Load LimitPu13.2kN
Limit speed2000.0r/min
Minimum load factorkr0.4

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