TBAI Linear bearing cages

（1） Linear bearing cages can be divided into stamped and solid types:

a. Stamping cage: commonly made of steel plate, sometimes also made of copper plate. The advantage of this type of cage over metal solid cages is its lighter weight. The stamping cage occupies a small gap between the inner and outer rings of the linear bearing, making it easy for lubricating oil to enter the linear bearing and remain in the cage. According to the code principle, the stamping cage is only written into the code when it is not used as a standard structure.

b. Solid holder: made of metal, phenolic resin fabric, and plastic. The linear bearing code indicates these materials.

Metal solid cages are used in work environments that require high strength and high temperatures for the cage.

When a barrier is needed for guidance, a physical cage can also be used. The high-speed linear bearing cage guided by the edge is often made of lightweight materials, such as light metal or phenolic resin fabric, to ensure its small inertial force.

（2） The main function of the holder is:

a. Separate each rolling element to minimize friction and heat generation during operation;

b. Maintain equal distance between rolling elements to evenly distribute the load;

c. To prevent the rolling elements of separable linear bearings and linear bearings with inner and outer rings that can swing relative to each other from falling out;

d. Guide the rolling elements in the non load bearing area of the linear bearing.