Single row deep groove ball bearing is a single row deep groove ball bearing, which is the most commonly used hydraulic bearing. The curvature radius of the single channel inside and outside most commercial bearings is between 51.5% and 53% of the diameter of the steel ball.
decide
The bearing assembly fills the steel ball between the inner and outer rings, and the supporting parts are installed by the lower type
= 2 (2-リ) D
In the formula, Z is the number of balls, D is the diameter of the ball, d. Is the diameter of the center pitch circle of the ball. Push the inner ring to a concentric position with the outer ring, and
The balls are evenly distributed around the perimeter and then loaded into the royal cage as shown in Figure 1.12 or the polymer cage as shown in Figure 13.18a
To keep the balls evenly distributed. Deep groove ball bearings have a high fit, and the bearing pitch can accommodate the appropriate ball diameter and ball
Therefore, when the bearing material performance is excellent, the manufacturing accuracy is good, the lubrication and sealing are suitable, it has a high carrying capacity.
Although this bearing is designed to bear radial loads, the bearing is loaded in combination with radial and axial loads, or even only in axial loads
It also works very well in the state. If the cage design is reasonable, the deep groove ball bearing can also withstand a small eccentric load (moment
The load). If the outer surface of the bearing outer ring is made into a spherical surface, as shown in Figure 1.15, the bearing has a self-aligning function, but does not
Can withstand torque load.
Deep sea ball bearings can be equipped with a seal chart (FIG. 1.16) or dust cover (FIG. 1.17) or both (FIG. 1.18) for these groups
The function of the piece is to prevent lubricant leakage and prevent dirty flow into the bearing interior. To meet the needs of ordinary and special applications,
Sealing rings and dust caps come in many forms, such as Figure 1.16 - Figure 1.18. The seal structure is described in detail in Chapter 12. Deep groove ball bearings can also operate at high speeds if they are sufficiently lubricated and can provide cooling. The speed limit given in the manufacturer's sample is generally the value of the bearing without external cooling or without the use of special cooling techniques.
According to ANSl and 1SO standards, there are several different size series of deep groove ball bearings.