Some concepts of bearings

Some concepts of bearings1. Bearing axisThe theoretical rotation axis line of the rolling bearing is the inner ring axis line of the centripetal bearing and the axial ring axis line of the thrust bearing.2. Inner ring (shaft washer)axisThe inner line of the inner cylinder or cone of the basic cylindrical or conical bore of the inner ring (shaft ring).3. Outer ring (housing washer)axisIf the outer surface of the outer ring is cylindrical, the axis line of the outer surface of the outer cylinder is the axis line of the outer ring. If the surface is basically spherical, the outer surface of the ring is connected with the center of the sphere, and the line perpendicular to the end face of the outer ring is the axis line of the outer ring.4. Cone inner (outer) cone axisThe axis line of the inner ring (outer ring) of tapered roller bearing.5. The radial plane radial planeThe plane perpendicular to the axis line and parallel to the end face of the ferrule or the cutting surface on the back of the washer may be considered as the radial plane.6. The radial radial directionThe direction through the axis line in the radial plane.7. Axial planeThe plane containing the axis line.8. Axial directionDirection parallel to the bearing axis.The direction perpendicular to the end face of the ferrules or the cut face on the back of the washer may be considered as axial.9. The radial (axial) distance radial (axial) shortThe distance measured radially (axially).10. Contact AngleThe Angle between the plane perpendicular to the bearing axis line (radial plane) and the resultant action line (nominal action line) transmitted to the rolling body by the bearing ring or washer.11. Nominal contact pointThe point at which the rolling body contacts the raceway surface when the bearing part is in a normal relative position.Reference face of a ring (a washer)Bearing manufacturer designated as datum ring (gasket) end face, can be used as a benchmark for measurement.

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