First, different structures

 

CA type: integral brass machined cage, inner ring without middle flange, end face with two small flanges, roller symmetry type;

 

CC type: symmetrical roller, inner ring without stop point, no end stop point. The cage is divided into two parts. The material is a pressed steel frame cage. A movable ring is designed between the rollers, which can effectively reduce the internal friction of the bearing, effectively assist the rollers in the non-stressed area to enter the bearing area correctly, and improve the ultimate speed of the bearing.

 

Two, the internal space is different

 

CA type adopts low noise, has a certain self-lubrication function, the roller occupies a small space, limits the shape size and number of the rolling column body, so that its bearing capacity is limited, the cage has its own activity guide ring. Compared with the Ca model of the same specification, the CC model has more internal space and can increase the load by increasing the number of rolls.

 

Three, different axial bearing capacity

 

In application, the cage of Ca structure occupies a large internal space under the condition of limited bearing external size, which limits the external size and number of the rolling body to a certain extent, thus reducing the ability of the bearing to further improve the radial bearing capacity. Under the condition of heavy load and high speed, CC structure should be selected more. Such as: some use environment is high temperature environment must use CC type.

 

Advantages of CC type self-aligning roller bearings

 

Compared with CA structure of spherical roller bearing, CC type spherical roller bearing cage to improve the tensile strength of the larger, CC type spherical roller bearing design occupies less than CA structure bearing internal space, can be used to increase the number of rolling elements, change the way of roller shape size, to a certain extent, improve the radial load capacity of bearing, Therefore, CC type self-aligning roller bearing can bear greater axial bearing capacity than CA structure design.

 

According to statistics, CC cage bearing relative to CA cage bearing speed can be increased by 20% or so, life increased by 10% or so.

 

CC type self-aligning roller bearings have low energy consumption and more advantages in rigidity and toughness. In the working environment of heavy load and high speed, CC structure self-aligning roller bearings should be selected more often.