Characteristics of CC type double row self-aligning roller bearings

The characteristics of CC type double row self-aligning roller bearings are mainly reflected in their structural design and performance. The following is a detailed summary of their features:

1、 Structural design features

Roller Symmetry: The roller design of CC type double row self-aligning roller bearings is symmetrical, which helps the bearing to be more uniform under load, improving the bearing's load-bearing capacity and service life.

Inner ring without middle stop edge: The inner ring does not have a middle stop edge, which makes the installation and disassembly of the bearing more convenient and also reduces the weight of the bearing.

No end face blocking edge: The inner ring of the bearing also has no end face blocking edge, further simplifying the structure of the bearing.

Retaining frame split: Adopting a stamped steel retaining frame with a split structure, this retaining frame not only reduces weight, but also effectively reduces the rotational inertia of the retaining frame, with little impact on the degree of freedom of the rollers, thereby improving the ultimate speed of the bearing.

Active spacer ring: A movable spacer ring is designed between the rollers, which helps reduce the internal friction of the bearing and effectively assists the rolling elements in the non stress area to enter the load area correctly.

2、 Performance Characteristics

Strong load-bearing capacity: Due to the symmetry and large number of rollers, CC type double row self-aligning roller bearings have high load-bearing capacity and can withstand large radial loads and bidirectional axial loads.

Good centering performance: The curvature center of the outer race raceway surface of the bearing is consistent with the center of the bearing, making the bearing have automatic centering performance. When the shaft is subjected to force bending or installed with different concentricity, the bearing can still be used normally, and the alignment varies with the bearing size series. Generally, the allowable alignment angle is 1-2.5 degrees.

High ultimate speed: Due to the use of steel plate stamping structure for the retaining frame and point locking for the window holes to prevent roller detachment, while reducing weight and rotational inertia, CC type double row self-aligning roller bearings have a high ultimate speed.

Long service life: The internal space design of the bearing is reasonable, the rollers can move flexibly, and high-quality materials and advanced technology are used for manufacturing, making the service life of the bearing relatively long.

Widely used: CC type double row self-aligning roller bearings are suitable for various heavy-duty, impact load, and occasions that require automatic self-aligning performance, such as steel plant equipment, cranes, port elevators, paper machinery, etc.

In summary, CC type double row self-aligning roller bearings have structural design characteristics such as roller symmetry, no middle or end face retaining edges in the inner ring, separate retaining frames using stamped steel system, and movable intermediate rings designed between the rollers. They also have strong load-bearing capacity, good self-aligning performance, high ultimate speed, long service life, and wide application.