¢º Products : LM Guide >THK LM Guide >Cross Roller Bearing > Spherical Plain Bearing > Link Ball (Types and Features)

 

    The Thk Link Ball is produced by a unique process: with a steel ball used for the precision bearing
    as the core, the holder is die-cast into a spherical shape, then the shank is specially welded to the holder.
    This manufacturing process is advantageous in that the mirror surface of the steel ball
    can be exactly duplicated on the holder spherical interior, and that high lubrication performance is achieved
    due to the grease pockets provided at the top and bottom of the spherical section,
    over the entire surface of which the ball and holder contact one another.
    High lubrication performance results in high wear resistance.

 

Link Ball Type AJ

Link Ball Type AL

The holder is assembled on the same
axis as that of the ball shank, which consists of
a precision steel ball and an externally threaded shaft.

The grease pockets provided at the top
and bottom of the spherical section provide high lubrication performance, resulting
in high wear resistance.

As the holder is made of A-1 Alloy, type AJ is advantageous for automobile suspensions that must be lightweight and high in strength.

The holder is assembled at a right angle with the ball shank, which consists of a precision steel ball and an externally threaded shaft.


The grease pockets provided at the top and bottom of the spherical section provide high lubrication performance, resulting in high wear resistance.


As the holder is also made of the same A-1 Alloy as used for type AJ, the weight of type AL has been substantially reduced.

Link Ball Type BL

Link Ball Type RBL

High-strength zinc alloy is used for the holder, which is assembled at a right angle with the ball shank.


The grease pockets provided at the top and bottom of the spherical section provide high lubrication performance, thus high wear resistance.

Grease is sealed in the boot.
This design provides high lubrication performance, resulting in high wear resistance.

Type TBS

The thread worked by rolling on the outer-ring exterior aids in mounting to the housing. Simply tightening the bolts securely fastens the Link Ball unit to the housing.

Since the sphere covers a large area, a large axial load can be applied.