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N308-E single row Cylindrical roller bearing

Short Description:

Single-row cylindrical roller bearings with a cage comprising cylindrical rollers caged between a solid outer and inner ring. These bearings have a high level of rigidity, can support heavy radial loads and are suitable for high speeds. The inner and outer rings can be fitted separately, making installation and removal a simple process.

The outer ring of an N series cylindrical bearing has no ribs, whereas the inner ring of the cylindrical bearing has two fixed ribs. This means that the N series cylindrical bearing cannot locate the shaft, therefore the axial displacement of the shaft relative to the casing can be accommodated in both directions.


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N308-E single row Cylindrical roller bearing detail Specifications:

Material : 52100 Chrome Steel

Construction : Single Row

Cage : Steel , brass or Nylon

Cage Material : Steel , brass or Polyamide (PA66)

Limiting Speed : 5250 rpm

Weight : 0.631 kg

 

Main Dimensions:

Bore diameter (d) : 40 mm

Outer diameter ( D) : 90 mm

Width (B) : 23 mm

Chamfer dimension (r) min. : 1.5 mm

Chamfer dimension (r1) min. : 1.5 mm

Permissible axial displacement (S ) max. : 1.2 mm

Raceway diameter of outer ring (E) : 80 mm

Dynamic load ratings (Cr) : 85.50 KN

Static load ratings (Cor) : 70.20 KN

 

ABUTMENT DIMENSIONS

Diameter shaft shoulder (da) : 49 mm

Diameter of housing shoulder (Da) : 81 mm

Maximum recess radius (ra1) max : 1.5 mm

 

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