The working principle of CC Tiebao self-aligning roller bearings is based on their unique double row roller and spherical raceway structure, which automatically compensates for axial and radial loads through rolling friction. The following is a specific analysis:
CC Tiebao self-aligning roller bearings belong to a category of self-aligning roller bearings, and their working principle is mainly based on the principle of rolling friction. Through specific structural design, they achieve automatic self-aligning and load bearing functions, which are specifically reflected in the following aspects:
Structural foundation and rolling friction mechanism
Double row rollers and spherical raceway: This bearing consists of an outer ring with spherical raceway, a double raceway inner ring, two rows of symmetrical spherical rollers, and a stamped steel plate cage. The center of curvature of the outer raceway coincides with the center of the bearing. When the roller rolls between the inner and outer raceway, the contact angle is automatically adjusted due to the difference in raceway geometry, forming rolling friction to reduce the friction coefficient.
Automatic centering function: When there is an angle error in the shaft or bearing seat, the spherical raceway allows the rollers to maintain stable contact even in a tilted state. For example, when the shaft deflection causes the bearing axis to shift by 1 °~2.5 °, the rolling contact between the roller and the raceway can automatically compensate for this error, ensuring the continuous and stable operation of the equipment.
Load bearing and retaining frame action
Radial and axial load handling: This bearing can withstand both radial and bidirectional axial loads simultaneously. The radial load is transmitted through the rolling contact between the roller and the raceway, while the axial load is borne by the contact between the roller end face and the retaining edge. For example, when subjected to radial loads, the rollers roll along the raceway to disperse pressure; Under axial load, the retaining edge limits the axial displacement of the roller, achieving bidirectional load balance.
Advantages of retaining frame structure: using stamped steel plate retaining frames instead of traditional solid retaining frames, providing greater internal space while ensuring strength. For example, CC type bearings are formed into an open structure through steel plate stamping technology, which makes the distribution of lubricating grease more uniform, reduces the accumulation of frictional heat, and enhances the adaptability of bearings to heavy load and impact conditions.
Performance characteristics and adaptability to working conditions
High load capacity and impact resistance: The reinforced symmetrical roller design significantly improves the radial and axial load capacity of the bearing. For example, under heavy load or vibration conditions, the double row roller structure can evenly distribute the load to the two rows of rollers, avoiding fatigue damage caused by local overload.
Adaptability to harsh environments: This bearing is suitable for working conditions such as high dust, high humidity, and strong vibration. For example, in mining equipment, its special cage structure can prevent impurities from entering, while optimizing lubrication design to reduce wear, ensuring that the centering performance and service life can still be maintained under extreme conditions.