SKF 4308ATN9 bearings
4308ATN9 SKF double row deep groove ball bearin

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SKF double row deep groove ball bearing
Measurement system
Metric
Bore diameter
40.000 mm
Outside diameter
90.000 mm
Width
33.000 mm
Cr
55900 N
C0r
45000 N
Limiting speed
6700 r/min
Net weight
0.931 kg
Number of rows
2
Sealing
Without
Cage
Plastic
Bearing material
Steel
Rolling material
Steel
Internal clearance
CN
Lubricant in bearing
None
Relubrication feature
Without

In stock

Technical specification for SKF 4308ATN9

SKF 4308ATN9
Part Number 4308ATN9
Description Double row deep groove ball bearing
Number of rows 2
Cage Glass fibre reinforced PA66 cage, ball centred
Dimensions
d 40.0 mm Bore diameter
D 90.0 mm Outside diameter
B 33.0 mm Total width
d1 ≈ 56.9 mm Shoulder diameter
D1 ≈ 73.1 mm Shoulder diameter
r1,2 min. 1.5 mm Chamfer dimension
Abutment Dimensions
da min. 49.0 mm Diameter of shaft abutment
Da max. 81.0 mm Diameter of housing abutment
ra max. 1.5 mm Radius of shaft or housing fillet
Calculation Data
C 55.9 kN Basic dynamic load rating
C0 45.0 kN Basic static load rating
Pu 1.9 kN Fatigue load limit
  12000.0 r/min Reference speed
  6700.0 r/min Limiting speed
kr 0.06 Minimum load factor
f0 13.8 Calculation factor
SKF double row deep groove ball bearing

SKF 4308ATN9, Double row deep groove ball bearings correspond, in their design and operation, to a pair of single row deep groove ball bearings. They are robust in operation, requiring little maintenance, can operate at high speeds and accommodate radial and axial loads in both directions. They are slightly wider than single row bearings of the same bore and outside diameter but have a considerably higher load carrying capacity.

  • Bore diameter: 40.0 mm
  • Outside diameter: 90.0 mm
  • Width: 33.0 mm
  • Basic dynamic load rating: 55.9 kN
  • Basic static load rating: 45.0 kN

 

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