， 王怡
Roller Bearing Terminology (Part 4)
Static Load Rating：静载荷额定功率
A numerical signifying the hypothetical load which would give a basic rating life of 1 million revolutions (or an operating time of 100,000 hours) of a ball or roller rolling bearing operating at its nominal dynamic load rating and rotation under ideal operating conditions.
Dynamic Load Rating：动载荷额定功率
A number expressing the axial dynamic load a bearing can sustain at a given running speed, assuming ideal operating conditions, and a basic rating life of 1 million revo lutions or 100,000 hours.
Contact Angle：接触角
The angle subtended between a line drawn along the plane of contact between rolling elements and raceways and a plane drawn through the axis of bearing.
Pitch Diameter：节圆直径
The diameter of the theoretically exact pitch circle that passes through the center line of the intervals radiating from the center of the bearing.
Inner Ring：外圈
The ring which typically carries the larger of the two roller or ball contact loads and is made so as to be separable from the outer member.
Outer Ring：内圈
The ring which typically carries the smaller of the two roller or ball contact loads and is made so as to be separable from the inner member.
Cage：阀
Retaining device or separator used to contain and separate balls or rollers in a bearing while permitting low friction rotation.
Retainer：垫圈
A metal part designed to prevent the exit of ball or rollers from a bearing.
Riveted：铆接
The process by which two metal components are joined together by either hydraulic or mechanical means.
Riveted：铆钉
A metal pin which is used to hold two parts together mechanically (e.g. inner and outer races).
Bore：孔径
The inside diameter of a bearing.
Outer Diameter：外径
The outside diameter of a bearing.
Width：宽度
The dimension running perpendicular to the bore and outer diameter.
