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ABMA 1:1990 pdf free

ABMA 1:1990 pdf free.Terminology for Anti-Friction Ball and Roller Bearing and Parts
The arithmetical mean of the axial distances through which one of the rings or washers may be displaced relative to the other, from one axial extreme position to the opposite extreme position,without being subjected to any external load. The mean value includes displacements with the rings or washers in different angular positions relative to each other and with the set of rolling elements in different angular positions in relation to the rings or washers.
That constant stationary radial load (constant rentric axial load) which a rolling bearing can theoretically endure for a basic rating life of one million revolutions. In the case of a single row angular contact bearing, the radial load rating refers to the radial component of that load which causes a purely radial displacement of the bear-ing rings in relation to each other.
The rating life associated with 90% reliability. A bearing part which partly surrounds all or sev-eral of the rolling elements and moves with them. Its purpose is to space the rolling elements and generally also to guide and/or retain them in the bearing.
An angular contact rolling bearing with one row of rollers, each roller positioned crosswise in re-lation to the adjacent rollers, such that an axial load in one direction is supported by half the roller set (every second roller) while an axial load in the opposite direction is carried by the other half of the roller set.
A basically cylindrical or conical raceway which has a continuous slightly convex curvature in a plane perpendicular to the direction of rolling to prevent stress concentration at the ends of con-tacts between the rollers and raceways.
A basically cylindrical roller or basically tapered roller the outside surface of which has a contin-uous slightly convex curvature. in a plane con-taining the roller axis, to prevent stress concen-tration at the ends of the contacts between the roller and the raceways. ABMA 1 pdf free download.

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