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SKF NU 205 ECP
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SKF 22236 CC/W33

SKF NA 4905.2RS

Single row needle roller bearing with machined rings, with flanges and integral sealing

Single row needle roller bearings incorporate cylindrical rollers that are small in diameter relative to their length. Owing to their large number of rollers, the bearings have a high load carrying capacity. The outer ring includes two integral flanges to guide the bearing axially and an annular groove with one or more lubrication holes to facilitate relubrication. The inner ring contains an additional lubrication hole.

  • High radial load carrying capacity
  • High stiffness and low cross-sectional height
  • Accommodate axial displacement in both directions
  • Separable design
  • Integral sealing prolongs bearing service life
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Description

Dimensions

Bore diameter 25 mm
Outside diameter 42 mm
Width 18 mm

Performance

Basic dynamic load rating 21.6 kN
Basic static load rating 27.5 kN
Limiting speed 6 300 r/min

Properties

Bearing part Complete bearing
Number of rows 1
Outer ring type Machined (solid)
Aligning feature Without
Cage Sheet metal
Number of flanges, outer ring 2
Radial internal clearance CN
Tolerance class Normal
Material, bearing Bearing steel
Coating Without
Sealing Seal on both sides
Sealing type Contact
Lubricant Grease
Relubrication feature With

Technical Specification

Dimensions - NA 4905.2RS

Dimensions
d
25 mm
 Bore diameter
D
42 mm
 Outside diameter
B
18 mm
 Width
C
17 mm
 Width outer ring
F
30 mm
 Raceway diameter inner ring
r1,2
min.0.3 mm
 Chamfer dimension outer ring
s
max.0.5 mm
 Permissible axial displacement from the normal position of one bearing ring relative to the other

Abutment dimensions - NA 4905.2RS

Abutment dimensions
da
min.27 mm
 Smallest permissible abutment diameter shaft, bearings with flanges
Da
max.40 mm
 Diameter of housing abutment
ra
max.0.3 mm
 Fillet radius