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Double Row Deep Groove Ball Bearings

Technical Information

Last Modified: 15th Apr 2016

Double Row Deep Groove Ball Bearings

SKF 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.
Double row deep groove ball bearings are very suitable for bearing arrangements where the load carrying capacity of a single row bearing is inadequate. For the same outside and bore diameters, double row bearings are slightly wider than single row bearings but have considerably higher load carrying capacity than single row bearings in the 62 and 63 series.
SKF double row deep groove ball bearings are fitted with two injection moulded snap-type cages of glass fibre reinforced polyamide 66, ball centred, designation suffix TN9.

Double row deep groove ball bearings with polyamide 66 cages can be operated at temperatures up to +120 °C. The lubricants generally used for rolling bearings do not have a detrimental effect on cage properties, with the exception of a few synthetic oils and greases with a synthetic oil base, and lubricants containing a high proportion of EP additives when used at high temperatures.