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4304ATN9 SKF Double Row Deep Groove Ball Bearing 20x52x21mm

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Excl. Tax: £19.97 Incl. Tax: £23.96
4304ATN9 SKF Double Row Deep Groove Ball Bearing 20x52x21mm
Double Deep Groove Metric Ball Bearing Double row deep groove ball bearings correspond in design to single row deep groove ball bearings. They have deep uninterrupted raceways and high conformity between the balls and raceways. They are able to carry axial loads acting in both directions in addition to radial loads.
The double row arrangement means they are suitable for bearing arrangements where the load carrying capacity of a single row bearing (in the 62 and 63 series) are inadequate. Double row deep groove ball bearings have the same bore diameter and outside but are slightly wider than single rows, as a result they have considerably higher load carrying capacity.

Size 20mm x 52mm x 21mm

4304 ATN9 SKF Double Row Deep Groove Ball Bearing 20x52x21 (mm)



  • Sizes - d=20mm D=52mm B=21mm
  • A - Deviating or modified internal design with the same boundary dimensions, double row deep groove ball bearing without filling slots
  • TN9 - Injection moulded cage of glass fibre reinforced polymide, rolling element centred.
  • Double row deep groove ball bearings are very sensitive to misalignment, heavier carrying loads than single row and offers high speeds both radial and axial.  
  • Single row deep groove ball bearings are the most popular and widely used bearing today and are used in everything from Gearboxes, Electric Motors, Textile machines, Hand tools to skateboards.

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