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Angular contact ball bearing - The raceways of both the inner and outer rings of this bearing type are made with a set contact angle.The bearings are nonseparable.
Water pump bearing - The outer ring raceway of this bearing is spherical, with the center of the radius located on the bearing axis, providing a self-alignment capability. This bearing incorporates a 45o contact angle that enables the bearing to support large axial loads and moderate radial loads.
Set and drift - In navigation set and drift are characteristics of the current in which a ship is sailing. Drift is the magnitude of the current (typically measured in knots) and set is the bearing in the direction the current is flowing.
Outer measure - In mathematics, in particular in measure theory, an outer measure is a function defined on all subsets of a given set with values in the extended real numbers satisfying some additional technical conditions. A general theory of outer measures was developed by Carathéodory to provide a basis for the theory of measurable sets and countably additive measures.
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