Capacity of Kaydon reali-slim bearings

The values in Kaydon radial capacities are consistent with both ABMA Std. 9 and ISO 281 calculations, when the proper assumptions are considered. The increased capacities apply to Kaydon bearings with standard internal clearance. The new values assume that a certain amount of clearance is left in the bearing after installation.

The biggest increase is in the radial capacity of Kaydon four-point contact (Type X) bearings. Under the old rating system, four-point contact bearings were given the same capacity as radial (Type C) bearings. However, in this type of bearing the ball loads are distributed over two lines of contact on each race. This gives lower contact stress and longer life, as demonstrated by Kaydon testing.

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