Terminology and corresponding analysis in the bearing assembly process
Bearings will encounter a lot of technical terms during the installation process. Dongguan Shuanglian Bearing Co., Ltd. has summarized the following commonly used terms and the corresponding term analysis. Welcome to refer to, and please correct me if there are any errors!
1. Contact angle The angle between the plane perpendicular to the bearing axis (radial plane) and the line of action (nominal line of action) of the resultant force transmitted to the rolling element through the bearing ring or washer.
2. The diameter of the inner (outer) connecting cylinder of a row of balls in the ball group (outer diameter).
3. The inner (outer) diameter of the roller set radially contacts the diameter of the inner (outer) cylinder of a row of rollers in the roller bearing.
4. The distance between the two theoretical end faces (the back of the washer) of the bearing nominal width and the ring. Used to limit the width of the radial bearing (thrust bearing height).
5. The actual width of the bearing The distance between the axis line of the radial bearing and the intersection of the two tangent planes of the actual end surface of the ring that defines the width of the bearing. The end face of the inner ring and the end face of the outer ring define the bearing width.
6. Deviation of actual bearing width The difference between the actual bearing width and the nominal width.
7. Radial runout of the inner ring of a complete set of bearings. When the inner ring of Kia is at different angular positions, the difference between the maximum and minimum radial distances between the inner hole surface and a fixed point relative to the outer ring. The rolling elements at the angular position of the above point or on both sides near it should be in contact with the inner surface of the inner and outer ring raceways or the inner ring back rib (tapered roller bearing), that is, the bearing parts are in the normal relative position.
8. Radial runout of the outer ring of the complete bearing When the outer ring of Kea is at different angular positions, the difference between the maximum and minimum radial distance between the outer diameter surface and a fixed relative to the inner ring. The rolling elements at the angular position of the above-mentioned point or on both sides near it should be in contact with the inner surface of the inner and outer ring raceways or inner ring back ribs (tapered roller bearings), that is, the bearing parts are in normal relative positions.
9. When the inner ring of the complete set of bearing inner ring faces the raceway, when the inner ring is at different angular positions, the radial distance from the inner ring axis line is equal to the half of the contact diameter of the inner ring raceway, the reference end face of the inner ring is opposite to The difference between the maximum and minimum axial distance between a fixed point on the outer ring. The inner and outer raceways should be in contact with all rolling elements.
10. When the beating outer ring facing the raceway of the complete set of bearing outer ring is at different angular positions, the radial distance from the outer ring axis line is equal to half of the contact diameter of the outer ring raceway, the reference end face of the outer ring is relative to The difference between the maximum and minimum axial distance between a fixed point of the inner ring. Both the inner and outer raceways should be in contact with all rolling elements.
11. The run-out Sd of the end face to the inner hole of the bearing is at the position where the radial distance from the inner ring axis line is equal to half of the raceway contact diameter, and the maximum sum between the plane perpendicular to the ring axis line and the reference end surface of the ring The difference between the minimum axial distance.
1. Contact angle The angle between the plane perpendicular to the bearing axis (radial plane) and the line of action (nominal line of action) of the resultant force transmitted to the rolling element through the bearing ring or washer.
2. The diameter of the inner (outer) connecting cylinder of a row of balls in the ball group (outer diameter).
3. The inner (outer) diameter of the roller set radially contacts the diameter of the inner (outer) cylinder of a row of rollers in the roller bearing.
4. The distance between the two theoretical end faces (the back of the washer) of the bearing nominal width and the ring. Used to limit the width of the radial bearing (thrust bearing height).
5. The actual width of the bearing The distance between the axis line of the radial bearing and the intersection of the two tangent planes of the actual end surface of the ring that defines the width of the bearing. The end face of the inner ring and the end face of the outer ring define the bearing width.
6. Deviation of actual bearing width The difference between the actual bearing width and the nominal width.
7. Radial runout of the inner ring of a complete set of bearings. When the inner ring of Kia is at different angular positions, the difference between the maximum and minimum radial distances between the inner hole surface and a fixed point relative to the outer ring. The rolling elements at the angular position of the above point or on both sides near it should be in contact with the inner surface of the inner and outer ring raceways or the inner ring back rib (tapered roller bearing), that is, the bearing parts are in the normal relative position.
8. Radial runout of the outer ring of the complete bearing When the outer ring of Kea is at different angular positions, the difference between the maximum and minimum radial distance between the outer diameter surface and a fixed relative to the inner ring. The rolling elements at the angular position of the above-mentioned point or on both sides near it should be in contact with the inner surface of the inner and outer ring raceways or inner ring back ribs (tapered roller bearings), that is, the bearing parts are in normal relative positions.
9. When the inner ring of the complete set of bearing inner ring faces the raceway, when the inner ring is at different angular positions, the radial distance from the inner ring axis line is equal to the half of the contact diameter of the inner ring raceway, the reference end face of the inner ring is opposite to The difference between the maximum and minimum axial distance between a fixed point on the outer ring. The inner and outer raceways should be in contact with all rolling elements.
10. When the beating outer ring facing the raceway of the complete set of bearing outer ring is at different angular positions, the radial distance from the outer ring axis line is equal to half of the contact diameter of the outer ring raceway, the reference end face of the outer ring is relative to The difference between the maximum and minimum axial distance between a fixed point of the inner ring. Both the inner and outer raceways should be in contact with all rolling elements.
11. The run-out Sd of the end face to the inner hole of the bearing is at the position where the radial distance from the inner ring axis line is equal to half of the raceway contact diameter, and the maximum sum between the plane perpendicular to the ring axis line and the reference end surface of the ring The difference between the minimum axial distance.
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